statacmd.txt


Selected STATA Commands


* Stata online help

lookup   frequencies          	(topic)
help     tabulate             	(stata command)
space, enter, q keys		(at --more-- prompt)


* Session Preliminaries

log  using  a:97021901.log
dir a:
	

* Load a Stata-format dataset into memory (if you already have
the data that way)

use norc1.dta
describe


* Load a raw ascii text file dataset into memory, and save it in
Stata format

infile  variable_list                           using  text_file  
infile  id rincom91 educ age sex prestg80 year  using  a:norc1.txt
save  a:norc1.dta


* Examine the dataset in memory

summarize


* Examine a particular variable, compare frequencies with
codebook

tabulate sex
tabulate age   


* Recode missing data

replace age=. if age > 89
replace rincom91=. if rincom91 == 0


* Examine a particular variable whose codebook frequencies are
grouped 

generate age_temp = int(age/10)
tabulate age_temp
tabulate age_temp , missing
drop age_temp


* Examine bivariate relationships

correlate			(casewise deletion)
pwcorr , obs 			(pairwise deletion)
graph rincom91 educ
graph rincom91 educ , jitter(7)


* End session

save
log close
exit, clear