http://galton.uchicago.edu/~eichler/stat22000/Handouts/stata-commands.html Webdta[d N], the number of observations in the original data. dta[d sortedby], the variables on which the original data were sorted, if any. Stored results describe stores the following in r(): Scalars r(N) number of observations r(k) number of variables
How to count rows and columns of a .dta file in Stata?
WebSo, when we said list if rep78 >= 4, Stata included the observations where rep78 was ‘. ' as well. If we wanted to include just the valid (non-missing) observations that are greater … Web3 Official Stata commands How could official Stata commands be used to report on the distinctness of observations or related questions? For concreteness, let us imagine, as above, a dataset with one numeric variable, n, and one string variable, s, which might be entered as follows:. input n str1 s ns 1. 1 "a" 2. 2 "b" 3. 2 "b" 4. 3 "c" 5. 3 "c ... balkan tarihi barbara jelavich pdf
Using IF with Stata commands Stata Learning Modules
WebFeb 7, 2024 · Unless you are doing something for which a Stata command does not already exist, it is entirely possible to use Stata without ever coding a loop. That being said, judicious use of loops can make life easier for you. ... For example, suppose you want to count the number of observations/rows in auto.dta. local counter = 0 local N = _N forvalues i ... WebThe command below creates girls which is the number of girls in the family, and boys which is the number of boys in the family. collapse (count) numkids=birth (sum) girls=sexdum1 boys=sexdum2, by (famid) We can list out the data to confirm that it worked correctly. list famid boys girls numkids WebJun 6, 2024 · How to count the number of observations at the min and max value? I know one method is: (0 is the min value) Code: list educ if educ==0 Then I can count the numbers. Do I have better methods that Stata can give me the number automatically? Tags: None Yao Zhao Join Date: Feb 2024 Posts: 226 #2 05 Jun 2024, 21:51 Okay, I know I can use count. balkantanz