What is Numlist Stata?
What is Numlist Stata?
Description. The numlist command expands the numeric list supplied as a string argument and performs error checking based on the options specified. Any numeric sequence operators in the numlist string are evaluated, and the expanded list of numbers is returned in r(numlist).
What is the use of foreach loop?
The foreach loop is used to iterate over the elements of the collection. The collection may be an array or a list. It executes for each element present in the array.
What does != Mean in Stata?
The relational operators are > (greater than), < (less than), >= (greater than or equal), <= (less than or equal), == (equal), and != (not equal).
What are loops in Stata and how to use them?
We’ve already discussed using macros in Stata to simplify and shorten code. Another great tool in your coding tool belt is loops. Loops allow you to run the same command for several variables at one time without having to write separate code for each variable.
How do I run a Stata test from a do-file?
For example, if we had saved the do-file as “forvalues,” the command would be: Press Enter to run the do-file. You should see the numbers 1–3 in the Stata output. Next, we generate three new variables, test1, test2, and test3, with missing values. generate test `i’=.
Can Stata generate a variable that already exists?
The loop stops here as Stata cannot generate a variable that already exists. You can delete these practice examples from the do-file. Next, we look at using loops with the forvalues command to explore our dataset in relation to our research question.
What is foreach in Stata?
Foreach in is similar to foreach of , except that you can call a list without specifying a location. Foreach in is nice because it does not have a built in assert, which lets you loop over things without Stata second guessing what you are trying to accomplish.
