N is Stata notation for the total number of observations. n is 1 in the first observation, 2 in the second, 3 in the third, and so on. n is Stata notation for the current observation number. If we wanted to include just the valid (non-missing) observations that are greater than or equal to 4, we can do the following to tell Stata we want only observations where rep78 > 4 and rep78 is not missing. So, when we said list if rep78 > 4, Stata included the observations where rep78 was ‘. The great divide among data types in Stata is between numeric and string variables. Stata treats a missing value as positive infinity, the highest number possible. Cox University of Durham, UK n.j.coxdurham.ac.uk Abstract. Other users who have found the question cross-posted are encouraged to share the links as a reply as well. Stata has two built-in variables called n and N. 314329 Speaking Stata: On numbers and strings Nicholas J. If you've asked a question, let people know where else you asked the question and what your solution(s) were! When you post a question on another platform, include those links in your questions or as a reply (if it's Discord, just mention it).
#Stata substring how to
See the sticked "READ ME: How to best ask for help in /r/Stata" post on how to comment here if all else fails. Say I have the following data frame (part of much larger data frame): data < - ame(age c(21, 30, 25, 41, 29, 33), sex facto. Make sure to include the word "Stata" in your search query. I am struggling with variable labels of ame columns. Perform a web search for your question prior to posting here. Stata's online community has been active for many years and many questions and solutions are documented on StataList, which are highly indexed on contemporary search engines (e.g., Google). Stata has extensive and complete documentation you can read before posting here (and you can type help followed by the command name in console to see it, e.g.
This is not a place to find Stata tutoring. What a part is is defined by a separator. Do not request that the /r/Stata community do your homework for you. This function will extract one 'part' from a string variable (in contrast to the split command, which will create as many new variables as there are 'parts'). Assume good faith questions and comments. + String concatenation 'this' + 'that' concatenate the string values this and that - negation sale-discount subtract the value of DISCOUNT from the value of SALE Any arithmetic operation on a missing value or an impossible arithmetic operation (e.g., division by zero) yields a missing value.
#Stata substring code
The Code Block on Discord (run by Asjad Naqvi of The Stata Guide).
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