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Stata FAQ
ATS Stata Plots

This page presents examples of graphics programs written by ATS stat consultants. You can obtain these programs by typing, findit command_name, into the Stata command line and following the instructions (see How can I use the findit command to search for programs and get additional help? for more information about using findit).

This page contains only the commands and the plots themselves, there is no further explanation. We envision that users will look through the plots and when they find one that appears to do what they want, they will download the program and carefully read the help files.

Most of these examples use the hsb2 dataset which can be downloaded from within Stata using the following command: 

use http://www.ats.ucla.edu/stat/stata/notes3/hsb2, clear

Note: Most of the graphs were produced using the scheme lean1. Whenever a different scheme is used, it is given in the command.

chidemo -- chi-squared distribution with critical value 
chidemo 8
fdemo -- F-distribution with critical value 
fdemo 4 32
histbox -- histgram and boxplot 
histbox write, mean start(30) width(5)
meansdplot -- Plot means and standard deviations for groups 
meansdplot math prog, outer(2) xlab(1 "gen" 2 "acad" 3 "voc") ytitle(math score)

egen grp = group(prog female)
meansdplot write grp, outer(2) ///
xlab(1 "m-gen" 2 "f-gen" 3 "m-acad" 4 "f-acad" 5 "m-voc" 6 "f-voc") ytitle(writing score)

 meansdplot write prog, outer(2) xlab(1 "gen" 2 "acad" 3 "voc") ytitle(writing score) mlabel(female)
nbvargr -- observed variable, poisson & negative binomial probabilities 
use http://www.ats.ucla.edu/stat/stata/notes/lahigh, clear
nbvargr datsabs
postgr3 -- post estimation graphs and predicted values 
xi3: regress read i.female*socst ses science
postgr3 socst, by(female) scheme(s2mono)
profileplot -- profile plots 
profileplot read write math science, by(schtyp))

profileplot read write math science if schtyp==2, by(id) msymbol(i) legend(off)
tdemo -- t-distribution with critical value 
tdemo 4
zdemo -- normal distribution with user selected z-scores 
zdemo -1 1
zdemo2 -- 2 normal distributions with mean and sd 
zdemo2 50 5 60 10
ztail -- normal distribution demonstration 
ztail .05 1

ztail .05 2

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