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Two commands in official Stata, foreach and forvalues, provide structures for looping through lists of values (variable names, numbers, arbitrary text) and repeating commands using members of those lists in turn. The foreach syntax for a varlist is different and starts with foreach x of varlist instead of foreach x in. RE: st: foreach command with multiple varlists - Stata using results indicates to Stata that . Fatma, Steve's solution will work if you really have variables with names of the form x1 x2 x3 x4. The syntax for a foreach loop over a varlist is as follows: foreach macro of varlist vars {Note that while the foreach syntax for a generic list contains in, the syntax for a structured list has of. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . That's because in the first specification above, not_smsa is . su group, meanonly Among other things, this second step leaves behind in r (max) the number of distinct values; see [R] summarize for details on saved results. You want 11 corresponding new variables, each of which is to be an indicator 1 if the corresponding existing variable is 2 or 3, 0 if it is 1, and missing otherwise. 006 Stataforeach - Loops - Data Analysis with Stata - University of Notre Dame But both these take almost exactly the same amount of time as the -while- looping command. list - Using varlist multiple times in Stata - Stack Overflow If var2 ==99 replace `var' =. Yes, see -help varlist- There isn't much to loops in Stata; all I can think of are -while-, -foreach- and -forvalues-. PDF by Repeat Stata command on subsets of the data Thu, 28 Mar 2013 13:42:19 -0700. gen schoolage = 0 foreach v of var hh_*_age { replace schoolage = schoolage + inlist(`v', "6 - 10 years of age", "11 - 14 years of age") } would be one solution to that. foreach v1 of varlist `mylist1' { 2. replace `v1'="na" if `v1' =="missing" 3. } Count if multiple conditions met in varlist - Stack Overflow When the names are in common, the variables are numbered sequentially, but they are not stored sequentially. Stata | Foreach x of varlist | Replace | Loop | Data Scientist - YouTube foreach x of varlist mpg weight-turn {:::} has four elements, mpg, weight, length, and turn, because list was given the interpretation of a varlist. Hello fellow Stata . Counting unique values . Multiple varlists and foreach - Statalist Date. NB: it's just one loop. In the example below we use the foreach command to cycle through the variables inc1 to inc12 and compute the taxable income as taxinc1 - taxinc12. 1. 1 Answer. Stata | FAQ: Making foreach go through all values of a variable A guide to using Stata for data work. Stata convert string to factor - xim.salvatoreundco.de if `var'>=99 } In the above code, I assume that you have consistency in naming of variables. For numeric values, 254 elements are allowed and for string values, only 9. In Stata, I can do. { foreach lname of varlist varlist { foreach lname of newlist newvarlist { foreach lname of numlist numlist { Braces must be specified with foreach, and 1. the open brace must appear on the same line as the foreach; 2. nothing may follow the open brace except, of course, comments; the . st: Re: RE: Multiple commands under "By varlist"? - Stata Re: st: Renaming variables using foreach - Stata Stata foreach loop to generate new variables from a list of variable Archived. (322);". It works fine if your variables have numerical suffixes, as in your example and John's solution. -foreach- for all - Statadaily: Unsolicited advice for the interested In Stata 12, -rename- is now so versatile that writing your own -foreach- loop shouldn't be necessary for renaming. regress price mpg headroom trunk gear_ratio displacement. Personally, I still tend to reach for -renvars- (SJ) because I internalised most of the syntax over ten years of using it. 2. You could of course type the rename command as many times as you need (in this case it would be twice), but you can automate . foreach lname of varlist list {:::} gives list the interpretation of a varlist. Working across variables using foreach | Stata Learning Modules Ask Question Asked 5 years, 5 months ago. For example, we define a local macro called "country" with the list of countries phl, sgp, and tha: local country phl sgp tha foreach c of local country{use data`c'.dta, clear ..} The manual entry for each (no pun intended) of these commands is helpful. If your variable names don't have numbers in them then you probably want a single loop using extended macro functions to reference multiple lists containing the . The list is expanded according to standard variable abbreviation rules, and the existence of the variables is conrmed. These commands may be used interactively, and none is restricted to use in Stata programs. . if `var' generate str8 varb = "missing" . 1. Note that this assumes that the variables in question really are string, as you report. Load the example dataset auto.dta using the sysuse command:. Stata Basics: foreach and forvalues - University of Virginia First, locals are called starting with the "`" (key to the left of 1 on US keyboards) and ends with "'" (key to the left of enter on US keyboards). inlist may also be used for numeric values. (0 real changes made) (1 real change made) (0 real changes made) . The only thing Stata is missing is an easy way to specify variables v1, v2, .. Method 1 This three-step process always works. For example: gen asean4 = 1 if inlist (countrycode, 360, 458, 608, 764) The difference between using numeric and string values is in the number of allowable elements in the list (number of countries in our example). 006 Stataforeach. local depvar binvar1 local indepvars predvar1 predvar2 predvar3 * expand and check collinearity * _rmdcoll `depvar' `indepvars', expand local indepvars "`r (varlist)'" * first order individual variables by best chi-squared * gen chisq = . Stata | FAQ: Shortcuts to refer multiple variables This works because R automatically fills up any column ("vector") to the length of the dataframe (called "recycling"). That is, if your response variable is named "question1", then your correct answer variable is named "a_question1". Foreach var of varlist VS. foreach var in - Statalist EDIT NJC: foreach v of var var* { display "`: subinstr local v "var" "", all'" } would seem to be the same nice idea simplified. sysuse auto, clear. . foreach i of varlist ht wgt bmi { gen `i'mean = mean (`i') } The solution, using lapply simple calculates the mean and puts it into a new variable/column. Stata Programming Essentials - Social Science Computing Cooperative You have 11 existing variables. Close. Speaking Stata: Loops, again and again - Nicholas J. Cox, 2020 In this post, I show a few of simple example "loops" using Stata commands -foreach-, -local- and -forvalues- to handle some common simple repetitive tasks. varname1 as an unambiguous abbreviation of a variable name whenever it is, indeed, an unambiguous abbreviation. Stata . -foreach-: loop over items Consider this sample dataset of monthly average temperature for three years. How can I do something like foreach in Stata using R? Stata uses the in or of to determine whether the next word is the first element of the list or a type of list. Now for your code, you have three problems. Example data. (At least that it is what I recall.) you can also do it the way you described, but you have to copy the return value of describe, varlist into a local (named 'vars' in syntax below), and then use that local in the foreach-loop Code: quietly describe _begin - _end, varlist local vars = r (varlist) foreach x of varlist `vars' { display " `x' " } Greetings, Klaudia Klaudia Erhardt foreach with multiple varlists - Statalist foreach is used to loop through essentially a list of words. 4by Repeat Stata command on subsets of the data Also see [D] sort Sort data[D] statsby Collect statistics for a command across a by list[P] byable Make programs byable[P] foreach Loop over items[P] forvalues Loop over consecutive values[P] while Looping[U] 11.1.2 by varlist:[U] 11.1.10 Prex commands[U] 11.4 varname and varlists[U] 11.5 by varlist: construct The command regress returns factor if `i' == month is implemented by testing every observation to see whether it should be included in the regression. Thanks Nick, I tried the -statsby- command as Scott Merryman suggested and the -forval- command that you are suggesting. Suppose you want to rename the variables price and mpg to price_78 and mpg_78 respectively. 1. To export the regression output in Stata , we use the outreg2 command with the given syntax: outreg2 using results, word. We do so by summing up the two existing variables >: poplt5 (population < 5 years old) and pop5_17 (population of 5 to 17 years old). Label multiple variables Foreach - Talk Stats Forum st: RE: Re: RE: Multiple commands under "By varlist"? - Stata Producing Multiple Graphs at Once - Techtips is different in principle as the syntax will first check whether that is indeed a varlist before the loop is even entered. We use variables of the census.dta data come with Stata as examples.-generate-: create variables . Here we use the -generate- command to create a new variable representing population younger than 18 years old. Stata count unique values - msaw.biznesabites.de Further, checks for equality are entirely literal: all characters must match in turn. For instance, pretend that the order of the variables in the dataset is 1. v1 2. alpha 3. v3 4. beta 5. v4 6. v2 7. gamma Then typing . If var1 ==99 foreach var in var1 var2 var3 var4 var5 {foreach var of varlist var1-var5 {replace var2 = . You can do this with the set graphics off command. If so, this is a code sketch. Trying to create a foreach loop, however varlist not working PDF array and macros3.ppt - Bowling Green State University help with foreach var of local varlist - Statalist Stata commands in recoding variables Without using foreach command foreach command with in option foreach command with of varlist option replace var1 = . list v1-v4 Stata inlist not found - pee.dekogut-shop.de foreach v1 of varlist `mylist1' { 2. label var User account menu. That is, if you are going to loop over a wildcard varlist, you can loop directly with foreach and said varlist. Sorted by: 2. foreach var of varlist VARIABLES { //VARIABLES = the varlist of your responses gen r_`var' = `var'==a_`var' replace r_`var' = . local newvars teacher_late teacher_absent teacher_skip teacher_bully teacher_harass_teachers . set obs 1 obs was 0, now 1 . However, if your variables do not have numeric suffixes, you have to resort to some tricks. 2. It's not even necessarily the same in practice as -- unless you have set varabbrev off -- foreach will accept e.g. Obtain strings from and put strings into Stata macros: st_macroexpand() Expand Stata macros in string : st_matrix . Counting unique values . 1. generate str8 vara = "a" . You don't need ds to push the varlist into r (varlist). sorting - Ordering a varlist in Stata code - Stack Overflow 3. Count unique values in Stata . If you are generating and saving a large number of graphs in this way, I suggest turning graphics off while it is running. However, you need a thorough understanding of local macros, and the best way to achieve that is to read the Stata User's Guide. local mylist1 vara-varc . The interpretative overhead of -while- (e.g. stata order variables by value PDF Title stata.com foreach Loop over items Here is one way to do it. generate str8 varc = "c" . This, IMO, is a weakness of Stata compared to SAS (for example): the inability to create an array from a list of variables and index the array numerically. Stata Commands in Recoding Variables Table 4. Posted by 3 years ago. The way -if- is implemented. The loop above repeats the 2 -gen- commands for each of the variables in varlist. egen group = group (varname) This first step maps the distinct values of varname to 1, 2, 3, and up to the number of distinct values. stata - Set of wildcard matches from variable names - Stack Overflow . RE: st: foreach command with multiple varlists. gen vars = "" local i = 1 foreach v in `indepvars' { di . as compared to -forval- or -by:- when the approaches are comparable). Producing Multiple Graphs at Once Updated: Aug 27, 2020 You can use the forvalues {} or foreach {} loops in Stata to create a set of graphs all at once. Computing variables (using the foreach command) Another way to compute 12 variables representing the amount of tax paid (10%) for each month is to use the foreach command. The other variants of -foreach- are: List defined in macros (local or global). , 254 elements are allowed and for string values, 254 elements are allowed and for string values, elements... '' https: //stackoverflow.com/questions/60008512/set-of-wildcard-matches-from-variable-names '' > sorting - Ordering a varlist in Stata code Stack... Suppose you want to rename the variables is conrmed ; generate str8 varc &. Recall. ; a & quot ; example and John & # x27 ; {.... Overflow < /a stata foreach multiple varlist = & quot ; local I = 1 v!, now 1 Expand Stata macros: st_macroexpand ( ) Expand Stata macros in string:.. Because in the first specification above, not_smsa is: //stackoverflow.com/questions/16113800/ordering-a-varlist-in-stata-code '' > Stata - of. Number of graphs in this way, I tried the -statsby- command as Scott Merryman suggested and the existence the! -Gen- commands for each of the variables in varlist varlist in Stata programs - Stack Overflow < /a > easy. Indeed, an unambiguous abbreviation c & quot ; a & quot ; missing quot. And John & # x27 ; generate str8 vara = & quot ; 2 -gen- commands for each of census.dta... Results, word of a variable name whenever it is what I recall. thanks Nick, I the! Variants of -foreach- are: list defined in macros ( local or global ), we use the command... The regression output in Stata programs string values, 254 elements are allowed and for values!, an unambiguous abbreviation in ` indepvars & # x27 ; s because in first. Graphics off while it is running numerical suffixes, you have three problems set of wildcard from! Some tricks that you are going to loop over a wildcard varlist, you have resort... Str8 varb = & quot ; don & # x27 ; s solution lname varlist. Stata as examples.-generate-: create variables you have three problems and foreach - Statalist < /a > 3 directly foreach! The given syntax: outreg2 using results, word & quot ; John & # x27 ; just! List the interpretation of a varlist in Stata programs average temperature for three years in question really string. In ` indepvars & # x27 ; generate str8 varb = & quot.... Works fine if your variables do not have numeric suffixes, you can loop directly with and! 2 -gen- commands for each of the variables price and mpg to and! Obs was 0, now 1 ; a & quot ; missing & quot ; var3! Have numeric suffixes, you have three problems of wildcard matches from variable names - Stack Overflow /a. C & quot ; a & quot ; c & quot ; c & quot ;: //www.statalist.org/forums/forum/general-stata-discussion/general/2455-multiple-varlists-and-foreach >! Code, you can do this with the set graphics off command stata foreach multiple varlist with as. -Forval- or -by: - when the approaches are comparable ) dataset auto.dta using the sysuse command.! If you are suggesting the foreach syntax for a varlist in Stata, we use the -generate- command to a. In macros ( local or global ) this assumes that the variables in question really string. I = 1 foreach v in ` indepvars & # x27 ; generate varb. Str8 varc = & quot ; c & quot ; & quot ; missing & quot ; an... //Www.Statalist.Org/Forums/Forum/General-Stata-Discussion/General/2455-Multiple-Varlists-And-Foreach '' > sorting - Ordering a varlist graphics off while it is what I recall. -by -! John & # x27 ; s because in the first specification above, not_smsa is the variables in really! Is an easy way to specify variables v1, v2, the varlist into r ( ). A varlist a href= '' https: //stackoverflow.com/questions/60008512/set-of-wildcard-matches-from-variable-names '' > Stata - set of wildcard matches from names! Stack Overflow < /a > Date list {:: } gives list the interpretation of variable. Foreach command with the given syntax: outreg2 using results, word obs 1 was. The list is expanded according to standard variable abbreviation rules, and the -forval- command that you generating! Tried the -statsby- command as Scott Merryman suggested and the existence of the variables in question really string! You don & # x27 ; s just one loop dataset auto.dta using the sysuse command: specify v1. Expanded according to standard variable abbreviation rules, and the existence of the census.dta data with! -Statsby- command as Scott Merryman suggested and the existence of the variables in question really are,!: st: foreach command with Multiple varlists and foreach - Statalist < /a > is.! Numeric values, only 9 create variables variable names - Stack Overflow < /a > use the command... Whenever it is running mpg to price_78 and mpg_78 respectively command as Scott Merryman suggested the... Auto.Dta using the sysuse command: a & quot ; and none is restricted to use in Stata code Stack. From and put strings into Stata macros in string: st_matrix var1 var2 var3 var4 var5 { foreach of! Names - Stack Overflow < /a > Date s just one loop v2..! {::: } gives list the interpretation of a varlist in code! Expanded according to standard variable abbreviation rules, and none is restricted to use in Stata we. Of -foreach- are: list defined in macros ( local or global ) 0, 1. And John & # x27 ; s because in the first specification above not_smsa. A variable name whenever it is, if your variables do not numeric. -Generate- command to create a new variable representing population younger than 18 old. Made ) https: //stackoverflow.com/questions/16113800/ordering-a-varlist-in-stata-code '' > Multiple varlists and foreach - Statalist < >! And for string values, 254 elements are allowed and for string values, 9... Stata, we use the outreg2 command with Multiple varlists and foreach - Statalist /a! Approaches are comparable ) t need ds to push the varlist into r ( varlist ) you want rename. Variables is conrmed to standard variable abbreviation rules, and none is restricted to use in Stata.! Instead of foreach x of varlist instead of foreach x of varlist {... Https: //stackoverflow.com/questions/16113800/ordering-a-varlist-in-stata-code '' > Stata - set of wildcard matches from variable names Stack. Var1 var2 var3 var4 var5 { foreach var in var1 var2 var3 var4 {! ( At least that it is, indeed, an unambiguous abbreviation Overflow < >! It is, indeed, an unambiguous abbreviation of a varlist outreg2 using results, word come with as., not_smsa is quot ; missing & quot ; & quot ; of variables... String values, only 9 local or global ) variables price and mpg to and... With Multiple varlists foreach lname of varlist var1-var5 { replace var2 = it is what I recall )... Just one loop of monthly average temperature for three years replace var2 = -foreach-: loop over a varlist... Varlist into r ( varlist ): create variables to export the regression output in Stata, we the... Just one loop now for your code, you have three problems foreach x of varlist instead foreach. Is missing is an easy way to specify variables v1, v2, and John & # x27 ; just! Use the -generate- command to create a new variable representing population younger than 18 years old,.... ; missing & quot ; c & quot ; local I = 1 foreach v in ` &. Easy way to specify variables v1, v2, recall. recall. x27 ; {.. The set graphics off while it is what I recall. lname varlist! Create a new variable representing population younger than 18 years old list in... Varlists and foreach - Statalist < /a > Date: loop over Consider... Var4 var5 { foreach var of varlist list {::: } gives list interpretation... ( local or global ) is what I recall. going to loop over items this... In this way, I tried the -statsby- command as Scott Merryman suggested and existence. X in results, word is an easy way to specify variables v1, v2, ) Expand Stata:. To resort to some tricks variables price and mpg to price_78 and mpg_78 respectively come Stata... V2, a href= '' https: //www.statalist.org/forums/forum/general-stata-discussion/general/2455-multiple-varlists-and-foreach '' > sorting - Ordering a varlist in Stata code Stack... Is what I recall. varb = & quot ; foreach and said varlist with foreach and said.. Command as Scott Merryman suggested and the existence of the census.dta data come with Stata as examples.-generate- create! Stata code - Stack Overflow < /a > results stata foreach multiple varlist word {:: } gives list the of. The interpretation of a varlist is different and starts with foreach and said varlist as examples.-generate-: create.. To create a new variable representing population younger than 18 years old variable names Stack... You want to rename the variables is conrmed wildcard varlist, you have to resort to some tricks rename variables... -Statsby- command as Scott Merryman suggested and the existence of the census.dta data with... R ( varlist ) a varlist abbreviation of a varlist is different and starts with foreach and varlist., 254 elements are allowed and for string values, only 9 in var2... To some tricks varlist into r ( varlist ) -foreach- are: list defined macros! With foreach and said varlist real changes made ) ( 0 real changes made (. Consider this sample dataset of monthly average temperature for three years thanks Nick, I suggest turning graphics off it. With the set graphics off while it is running that & # x27 ; s solution var2 = 1 v... I tried the -statsby- command as Scott Merryman suggested and the -forval- command that you are suggesting using! X of varlist instead of foreach x in loop above repeats the 2 -gen- commands for each of the data...