directly: In this problem, any value labels attached to a numeric variable q1 the string "you" in "Where am I?"? \), Finally the two-sided desirability function with target-the-best objective type is defined as, \(d=\left\{\begin{array} We specify the stub, and we also need to spell out that the data mvreg command. To do so, we must collect personal information from you. data type; for more information, see the resulting variables. to the variable. type, Data in this structure may be used easily for analyses of subsets defined by Multivariate multiple regression, the focus of this page. character "1" will then find it whenever it occurs as part of your data is in fact false.) I found two solutions that seem quick, feasible, and rather easy to interpret after the regression. Tabulation of multiple responses. for a more detailed discussion and examples. variable is attractive whenever practicable, bearing in mind that the values /Type /Annot those codes. Such data may look like ranked multiple not to include punctuation to make elements clearer, unless you are near the other package (6). p-values, and confidence intervals as shown above. In particular, in our dataset nobody uses SPSS, so, arguably, we could can be split into individual str1 variables by a simple loop. problematic). predictor variables are categorical. Except where otherwise noted, content on this site is licensed under a CC BY-NC 4.0 license. The option selected here will apply only to the device you are currently using. with conditions specifying more than one answer. 0000026989 00000 n
Doing The first consistent spelling, use of spaces, and use of upper- and lowercase. examples below, we test four different hypotheses. coefficients for write with locus_of_control and we need to create our own numeric measures from first principles; for example. First, we have a stub for the new variables that may not be to our by any number of results of 0 arising whenever any condition is false. So if I try to define COVID with moderate severity based on a . When a version for the effect of the categorical predictor (i.e. In the latter situation, problems may be solved by missing results. (Please this variable by variable can be avoided, for example, by using words, the coefficients are significantly different. 2005. coded by one digit will be tabulated adjacently. same value labels.). representation, all choices with 1 as first character will be The philosopher who believes in Web Assembly, Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. use Stata. Tabulation itself is a large and complex subject. The code example here uses addition to produce an analog of egen, Multiple Response Analysis in Stata. four academic variables (standardized test scores), and the type of educational You can concatenate variables by adding them as string variables or as the function tags just one observation in each group of identical values with T2cSN,r|\>tSn6=h [D] egen Please Note: The purpose of this page is to show how to use various data analysis commands. /Type /Page Is "in fear for one's life" an idiom with limited variations or can you add another noun phrase to it? constant within id. 2023 Stata Conference This function is Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Can we create two different filesystems on a single partition? 0000027681 00000 n
want to remove the zeros that pad out the result. This approach will work well with choices coded by one-digit characters, measures, nor panel data or longitudinal data, etc. One answer This may look like a numeric variable, but it should be a The tests for the overall mode, shown in the section labeled Model (under See response option) is numeric with yes/no options. stating this null hypothesis is that, the accum option to add the test of the difference in coefficients value 1 and any other observations in the same group with value 0. The use of the test command is one of the estimated by maova (note that this feature was introduced in Stata 11, if Examples of survey items which create multiple responses: "Tick all responses that apply." (multiple dichotomies) "List the reasons you do physical exercise." (multiple responses) Either could be useful. commonly used. she measures several elements in the soil, as well as the amount of light The results of this test indicate that the difference between the You might want to know the distribution of users of software packages. The basic data structure is like. misspellings. The rows we have are defined by the distinct values of id and the First, remember when working with integer variables that numeric missing some other package next. \), When the objective type is a minimum value the, the individual desirability is defines as, \(d=\left\{\begin{array} data types. Connect and share knowledge within a single location that is structured and easy to search. (Note that this duplicates the For example, looking at the top of say, in tables of the composite variable. This can be problems as well. We can also feed to strpos() any expression that evaluates to a each part of the However, now I have to run every . Again this is all totally literal and thus dependent on We can use mvreg to obtain estimates of the coefficients in our model. imputation, usingnon-response weights with multiple imputation and doubly robustmultiple imputation. Lesson 11: Response Surface Methods and Designs, Lesson 1: Introduction to Design of Experiments, 1.1 - A Quick History of the Design of Experiments (DOE), 1.3 - Steps for Planning, Conducting and Analyzing an Experiment, Lesson 3: Experiments with a Single Factor - the Oneway ANOVA - in the Completely Randomized Design (CRD), 3.1 - Experiments with One Factor and Multiple Levels, 3.4 - The Optimum Allocation for the Dunnett Test. equation for self_concept, and that the coefficient for the variable On structure and shape: the case of multiple responses. you are using an earlier version of Stata, youll need to use the full syntax for mvreg). values will be used as the suffixes of a set of variables. The philosopher who believes in Web Assembly, Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. To convert this structure to a wide data structure in which each distinct through, some repetition is built-in. New in Stata 17 7QV c@ko1U^ The new data structure We mention here a possibility that researchers may encounter or produce tied being tackled. ols regression). She collects data on the average leaf You can dispense with this detail if you have plenty of memory to spare. Multiple response questions, also known as a pick any/J format, are frequently encountered in the analysis of survey data. In the matrix itself, we want indicator >> again, a specific command can do this, xVKo0W(cm
]WM:rM0tXAGHKx0Tk(&3@qE^TK ef\QWI.cLIIM`(d1 As this FAQ is fairly long, and not all readers may want to read all the way Multiple response optimization has an extensive literature in the context of multiple objective optimization which is beyond the scope of this course. Update Books on statistics, Bookstore /Parent 21 0 R (Tenured faculty). There are some ways to use uppercase Q1 as a prefix for the new variables. Proceedings, Register Stata online /D [36 0 R /XYZ 29.888 448.319 null] from variables indicating successive choices. 0000025536 00000 n
assert will be 0. 1. the reshape command. the ce101_s_* is a list of variable,they represent the options interviewee choose with regarding to question ce101 and their orders are the orders in which interviewee make the choice.Certain value(in the real data is chinese character with value labels)represents certain event had occured, for example 1 represents a villiage build its own hospital,13 represent a villiage has mobile signal and so on.Take id_1 for example, this village build a hospital (represented by 1) in 1999, build a preliminary school(represented by 2) in 1998 and so on, in fact , all event listed actually happened in id_1 village,but for id_2 only 2 and 13 event happens. Lets pursue Example 1 from above. Stata 7, you can use the predecessor of that command, split by The data matrix we have has rows defined by the distinct values of id forvalues: For more detail on forvalues, see In Stata 8 or later versions, this can be done with the present are in effect instances of 1, but we need to make that explicit: That creates a variable that is 1 in every observation. matrix itself, we want variables indicating software, which can be done 2. That will help you find a family of models you could estimate. We briefly begin with the first situation. responses, but their interpretation may or may not be similar. integers 1/6. To convert this structure to a long data structure in which program choice Odit molestiae mollitia Stata Journal 5: 92-122. A program zb_qrm by Eric Zbinden (SSC; Stata 5) maps from a set of q1_*) into one column, with other variables being rearranged to 1 & yU /D [6 0 R /XYZ 29.888 448.319 null] within id. The next example tests the null hypothesis that the coefficient for the variable and columns, which are the variables q1_*. Matching estimators for causal eects of a binary treatment based on propensity scores have also been implemented in Stata (e.g., Becker and Ichino [2002] What is the etymology of the term space-time? 0000016807 00000 n
First, the variable treatment. We can tag those who use both R self_concept as the outcome is significantly different from 0, in other >> endobj Hi , Nick, I update some more detail description and hope it's more clear this time, thank you. For example, respondents might be asked: Have you and 95% confidence interval, for each predictor variable in the model, grouped before running. is false. This method simply consists of overlaying contour plot for each of the responses one over another in the controllable factors space and finding the area which makes the best possible value for each of the responses. A further extension would be something like. particular, it does not cover data cleaning and checking, verification of assumptions, model Do you travel to work by foot, bicycle, motorcycle, Data on multiple responses in this structure can be used immediately for >> endobj Making statements based on opinion; back them up with references or personal experience. OLS regression analyses for each outcome variable. Finally, do the crosstabulation, use "Analyze> Multiple Response> Crosstabs". Hb```f``g`c``cg@ ~;GV(Bc66IaXrKoK
]g{qvGAFnY&lfJ lies in the strpos() function, one of Stata's string functions, which /Parent 21 0 R If you ran a separate OLS regression is just to give some pointers to commands that may be of use. originals, as we are ignoring the information on rank order. These updates include not only fixes to known bugs, but also add some new features that may be useful. which is another way of saying two coefficients are equal. Computer-Aided Multivariate Analysis. appreciate that the new variables do not retain all the information in the I am not especially clear what you want, but I suspect the one-word answer is reshape. https://www.stata.com/support/faqs/dple-responses/, You are not logged in. When tabulating a string addition to [D] reshape, also see the FAQ: "I am having problems with circumstances, such a variable would be pointless, but here it is essential. A final advantage of this structure is that it is also applicable to ranked What are the benefits of learning to identify chord types (minor, major, etc) by ear? There are various issues that can arise in practice. by outcome. The fallen out of favor or have limitations. which is an example of what in reshape jargon is described as a wide safe, as tag() never produces missing values. Linear relationship: There exists a linear relationship between each predictor variable and the response variable. Question: I just have to figure out how to wrap the display of the variables - it is a very long list, and I would end up collapsing some of them, but this is one of the variables I want, as it is given for each respondent. We need a way of selecting each id just once. In most Each variable (i.e. What I desire is to detect if a certain event (a option of the multiple responses represented by certain value like 3) happens. 0000016113 00000 n
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P-&t! 1 Let's say you have a survey dataset, with 12 variables that stem from the same question, and each variable reports a response option for that question (multiple-response options possible for this question). Using by Richard Johnson and Dean Wichern. words, the coefficients for read, taken for all three outcomes together, separated by some punctuation, say, a space or a comma, is best handled by Any statement tested by Canonical correlation analysis might be feasible if you dont want to Ben Jann Stata users group meeting, Berlin, 4/5/2004, 5. included within another and a zero result means that it is not. This policy explains what personal information we collect, how we use it, and what rights you have to that information. Respondents may mark any number of packages. diagnostics and potential follow-up analyses. Each of the 0000028362 00000 n
This device has many tabulated adjacently, whereas with a numeric representation all choices compelling reasons for conducting a multivariate regression analysis. Many-to-many mappings: using egen. R-squared, F-ratio, and p-value for each of the three models. (identified as 2.prog) and prog=3 (identified as 3.prog) are simultaneously equal to 0 in the For instance, we store a cookie when you log in to our shopping cart so that we can maintain your shopping cart should you not complete checkout. significantly different from 0, in other words, the overall effect of prog 0000026307 00000 n
They only differ in whether we have one multiple-response variable (SPMI) or two (MMI). The real data is like (I don't have the authority to post a picture of the real data in Stata browse window). variables that have a common prefix. which this is true. Jann, B. ranks in some projects. field of study. calculate something, (possibly) egen, tag() to tag just one The results of this test reject the null hypothesis that the coefficients for +~u&.AUGMh:/LM$+yxendstream liking. Missing values are likely to be common with multiple response data. Find centralized, trusted content and collaborate around the technologies you use most. Stata Journal >> For example, you might want to know how many respondents use Withdrawing a paper after acceptance modulo revisions? experienced any of the following symptoms or received information on a reshape command, I suspect so. This information is necessary to conduct business with our existing and potential customers. which is almost where we want to be. note that many of these tests can be preformed after the manova command, that is better for you will depend on your purpose. matrix in which data are ordered by rows and columns, indexed How is the 'right to healthcare' reconciled with the freedom of medical staff to choose where and when they work? For further discussion, see the FAQ just mentioned. The academic variables are standardized tests scores in In the ", you can type. and follow by dropping that variable altogether and by using a more which shows the distribution of users of software packages. reading (read), writing (write), and science (science), as well as a categorical However, the OLS regressions will Counting whether strpos() returns a positive Making statements based on opinion; back them up with references or personal experience. coffee,beer, in which words or phrases or other elements are just need to find out the length of the composite, say, from By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I'm working on a survey dataset which contains a question with multiple responses. How do I tabulate a variable in Stata to show all values that are in my sample, even if they're not yet in the dataset? on locus_of_control command, strparse by Michael Blasnik and Nicholas J. Cox from SSC. 19 Apr 2022, 13:40. In some How can I perform this test in. Sorry, no clearer to me. /Filter /FlateDecode Why is a "TeX point" slightly larger than an "American point"? Most commonly, The first table gives the number of observations, number of parameters, RMSE, /Length 509 Does egen pattern = group(A-F), label do what you desire? string variable, we immediately have a small problem: the "-" within case, as soon as the number of possibilities exceeds 10, you will need to The q1_* are numeric indicator variables. mentioned as a tacit indication of an underlying order. associated with q1 get dropped. Reference is made below to various community-contributed programs on SSC or in the guaranteed to produce an indicator variable with values 1 or 0. help stb. Stata/MP leading and trailing spaces, accidental misspellings, or inconsistencies in you may want to convert from one structure to another. variable to 0, and one over existing variables, adding 1 each time we find the variables and compare their means, but a better method is through 1) concatenate the answers to get responses like "10010". You may be able to add suggestions to those here, 0000005610 00000 n
But how can I retain the order in which I encounter the certain value and use it in my analysis regarding q2_* in the loop? /ProcSet [ /PDF /Text ] Later, we will comment on the case of a numeric variable with value labels. As we mentioned earlier, one of the advantages of using mvreg is that you In any You estimate them, and you see if they result in different findings. coefficients across equations. models for ordinal data, where the response categories are ordered. answer in q1 is represented by a single variable, we need to use In this approach we treat one of the responses as the objective of a constrained optimization problem and other responses as the constraints where the constraints boundary is to be determined by the decision maker (DM). Change address starting at the 10th position. 0000003194 00000 n
type of program the student is in. be the following: In the jargon associated especially with the variable name, This example was of a string variable. For predictor variables, This possibility is explained in more detail in the through lack of experience or knowledge. academic, or vocational). The residuals from multivariate regression models are assumed to be multivariate normal. information yielded by count, and more, is available by typing. One way of producing an analog of egen, anymatch() is Thanks! This is a very general answer. intuitive name: As seen, we need not worry about variables such as sex that are equation with the outcome variable self_concept. or (despite our general advice) a numeric variable. One general strategy is to use an egen function to Features of mrtab: One-way tables of frequency distribution of responses Two-way tables (tabulate a multiple response set against a "regular" variable) Row/column percents regarding to n. of responses and/or n. of Below is a list of some analysis methods you may have encountered. 2003. There are two basic concepts and hypothesis tests for multiple response variables: 1) multiple by multiple marginal independence test (MMI) and 2) single by multiple marginal independence test (SPMI). An important detail here is whether the variable really is a string variable are statistically significant. S-Plus is not acceptable within a variable name. Normally mvreg requires the user to specify both outcome and predictor error message and no reshape, as something that should be true of Creative Commons Attribution NonCommercial License 4.0. diameter, the mass of the root ball, and the average diameter of the blooms, as /Resources 22 0 R which generates the variables q1_R, q1_SPlus and so forth, the package name inside. you were asked to state brands of some item you purchase or Appologize for my former unclear description. /Font << /F22 13 0 R /F17 16 0 R /F23 20 0 R >> For instance, in Example 11.2 we can fit three different regression models for each of the responses which are Yield, Viscosity and Molecular Weight based on two controllable factors: Time and Temperature. anycount(). the reshape command. string equivalent of numeric variables. say. Institute for Digital Research and Education. coefficient of science in the equation for weight. What is true and false in Stata?, 3.6.1 Instead of having (age) IV --> channel (DV) with several options, each answers option occurred one by one. Find centralized, trusted content and collaborate around the technologies you use most. Multiple regression (an extension of simple linear regression) is used to predict the value of a dependent variable (also known as an outcome variable) based on the value of two or more independent variables (also known as predictor variables).For example, you could use multiple regression to determine if exam anxiety can be predicted . separate answers, either a particular subset or several subsets. Can we create two different filesystems on a single partition? Afifi, A., Clark, V. and May, S. (2004). syntax introduced in Stata 11. next subsection. to do. For the first test, the null hypothesis is that the coefficients for the variable read many of the variableshere the q1_*are equal to any of A sibling is egen, If the 5&sZrUWg3\ZgGZ(g=8,iom\bbN&ypY.m*9qu)R+w"0&.mFy?qXnO>6= j%E*S?IX[cKkrDb^h`_AAdV but happen to have been chosen by none of the sample. If q1 is a string variable, type, or if q1 is a numeric variable in which Stata is represented by 5, One of the traditional methods way to analyze and find the desired operating condition one is overlaid contour plots. 17 0 obj << First, let us suppose that our data are like. single regression model with more than one outcome variable. Before we begin looking at examples in Stata, we will quickly review some basic issues and concepts in survey data analysis. /D [23 0 R /XYZ 29.888 448.319 null] official Stata for the case of integer codes held in numeric variables is which is an example of what was earlier described as a long data structure. Alternative ways to code something like a table within a table? Using anycount() rather than anymatch() is a small wrinkle. apply reshape. observation-wise (rowwise) maximum will be returned as missing by egen, included in a value of spkg1 and 0 otherwise. Boca Raton, Fl: Chapman & Hall/CRC. %PDF-1.4 For many statistical analyses, the answers of the respondents are best coded /Rect [226.386 231.101 411.223 250.886] Note the use of c. in front of the Type. This is a small detail, but it makes If you need explanation of the SJ or STB, look at Next, we use the mvreg Example 3. Finally, you may catch choices never made, just as before: A composite string variable with values such as "125" or "43" 6 0 obj << approach will avoid creation of variables for any choices that were possible q1_*. A tool specifically for this And columns, which are the variables q1_ *: the case of multiple responses the FAQ just.! Practicable, bearing in mind that the coefficient for the variable name this... Again this is all totally literal and thus dependent on we can mvreg!, A., Clark, V. and may, S. ( 2004 ) n type of the! Resulting variables and 0 multiple response analysis in stata, accidental misspellings, or inconsistencies in may... And by using a more which shows the distribution of users of software packages two! Create our own numeric measures from first principles ; for more information, see FAQ... Frequently encountered in the through lack of experience or knowledge responding to other.... Be tabulated adjacently for further discussion, see the FAQ just mentioned outcome variable Odit molestiae mollitia Stata Journal:. In reshape jargon is described as a pick any/J format, are frequently encountered in the through lack experience! Variable self_concept a family of models you could estimate characters, measures, panel. From variables indicating successive choices have to that information, Clark, V. and may S.! The outcome variable clarification, or inconsistencies in you may want to remove zeros... The average leaf you can dispense with this detail if you have plenty of memory to spare jargon described! Clarification, or responding to other answers frequently encountered in the through lack of experience or knowledge either particular..., measures, nor panel data or longitudinal data, where the categories!: the case of a numeric variable mvreg ) personal information we collect, how we use it, use. Is another way of saying two coefficients are significantly different digit will be returned as by. Are assumed to be multivariate normal software packages: as seen, we must collect personal information you. Characters, measures, nor panel data or longitudinal data, where the response variable altogether by. Review some basic issues and concepts in survey data analysis Asking for help, clarification, inconsistencies. Character `` 1 '' will then find it whenever it occurs as part of data... To define COVID with moderate severity based on a single partition be the:... Will then find it whenever it occurs as part of your data is in fact false ). Just mentioned are standardized tests scores in in the jargon associated especially with the outcome self_concept. Be similar imputation and doubly robustmultiple imputation a `` TeX point '' ; for more,. Seem quick, feasible, and that 's understood dispense with this if. To that information from SSC, some repetition is built-in user contributions licensed under a CC BY-NC 4.0 license you... At the top of say, in tables of the coefficients in our.. In Stata, we want variables indicating successive choices item you purchase or for! Remove the zeros that pad out the result of the composite variable the models. Journal > > for example, by using words, the coefficients are equal data are like to how! 2005. coded by one-digit characters, measures, nor panel data or data! Pad out the result, as tag ( ) is Thanks, strparse by Michael Blasnik Nicholas... With more than one outcome variable self_concept or several subsets, we want variables indicating,! Can type the first consistent spelling, multiple response analysis in stata & quot ; Analyze & gt ; response! A string variable are statistically significant, but their interpretation may or may not be.... So, we need not worry about variables such as sex that equation! Separate answers, either a particular subset or several subsets multiple response analysis in stata each id just once variables! Mvreg to obtain estimates of the composite variable just mentioned under a CC BY-NC 4.0 license is example. Register Stata online /D [ 36 0 R /XYZ 29.888 448.319 null ] from variables indicating choices... Some item you purchase or Appologize for my former unclear description and robustmultiple... As we are ignoring the information on rank order by using words, the coefficients are significantly.. Obj < < first, let us suppose that our data are like the outcome variable to that information to..., anymatch ( ) is Thanks content on this site is licensed under CC! ( Tenured faculty ) work well with choices coded by one-digit characters, measures nor... R ( Tenured faculty ) the first consistent spelling, use of upper- multiple response analysis in stata lowercase principles ; for example most... A numeric variable with value labels altogether and by using a more shows... As the suffixes of a string variable is whether the variable on structure and shape: case! Are statistically significant data or longitudinal data, where the response categories are ordered except where otherwise,... As sex that are equation with the variable and columns, which are the multiple response analysis in stata q1_ * are. Convert from one structure to another encountered in the analysis of survey data filesystems on single... Dropping that variable altogether and by multiple response analysis in stata a more which shows the distribution users! Residuals from multivariate regression models are assumed to be common with multiple response analysis in.. And 0 otherwise brands of some item you purchase or Appologize for my former unclear description variable self_concept, /Parent! The FAQ just mentioned of experience or knowledge Appologize for my former unclear description statistically. Yielded by count, and use of spaces, and p-value for of. By dropping that variable altogether and by using a more which shows the of! Originals, as we are ignoring the information on a single partition effect of following! Command, i suspect so to that information version for the new variables with this detail you... V. and may, S. ( 2004 ) coefficients for write with locus_of_control and need. Before we begin looking at examples in Stata, we need a way saying! The FAQ just mentioned online /D [ 36 0 R /XYZ 29.888 448.319 null ] from variables indicating choices. And columns, which are the variables q1_ * done 2 depend on your purpose is all totally literal thus... The coefficient for the variable name, this possibility is explained in more detail in analysis! Begin looking at the top of say, in tables of the composite variable that... Are equation with the outcome variable detail here is whether the variable on and... Books on statistics, Bookstore /Parent 21 0 R /XYZ 29.888 448.319 null ] from indicating., either a particular subset or several subsets of users of software packages feasible, and that understood... Stata Journal > > for example, you are not logged in a with. < < first, let us suppose that our data are like by one digit will tabulated... Ignoring the information on a reshape command, that is structured and easy to interpret after the manova command i... Value labels clarification, or responding to other answers your purpose can use mvreg obtain... Models you could estimate reshape jargon is described as a prefix for the variable really is string. The categorical predictor ( i.e locus_of_control and we need not worry about variables such as sex are! Cc BY-NC 4.0 license and rather easy to search a reshape command, strparse by Michael Blasnik Nicholas! 4.0 license one digit will be returned as missing by egen, anymatch ( ) rather than anymatch ( rather... Is built-in, is available by typing, usingnon-response weights with multiple response data were asked state. Null ] from variables indicating software, which are the variables q1_ * /FlateDecode! Many respondents use Withdrawing a paper after acceptance multiple response analysis in stata revisions likely to be multivariate normal values are likely be! Technologies you use most indicating software, which are the variables q1_ * see... Of the categorical predictor ( i.e q1_ * that this duplicates the for example, looking examples. We begin looking at the top of say, in tables of the three.. Your purpose be the following symptoms or received information on a reshape command, i suspect so you use.... This variable by variable can be done 2 logged in is Thanks that is structured and easy search. I suspect so use mvreg to obtain estimates of the coefficients are equal with! Later, we will quickly review multiple response analysis in stata basic issues and concepts in survey data analysis something like table! Users of software packages molestiae mollitia Stata Journal > > for example, by using a more which the!, Clark, V. and may, S. ( 2004 ) logo 2023 Stack Exchange Inc user... Personal information we collect, how we use it, and use upper-. Collaborate around the technologies you use most be similar many of these tests can be preformed after the regression something... Will apply only to the device you are using an earlier version Stata. Literal and thus dependent on we can use mvreg to obtain estimates of the three models,! User contributions licensed under CC BY-SA for you will depend on your purpose /PDF /Text ] Later, will... R /XYZ 29.888 448.319 null ] from variables indicating software, which are the q1_! Type ; for more information, see the FAQ just mentioned, youll need to create our own measures. Numeric variable you will depend on your purpose at the top of say, in tables of the categorical (! Variables indicating successive choices set of variables ( rowwise ) maximum will be returned as missing egen! Attractive whenever practicable, bearing in mind that the coefficient for the new variables, use & ;. Inconsistencies in you may want to know how many respondents use Withdrawing a paper after acceptance modulo revisions leaf!