Hello 
I am trying to run some commands that produce some plots, but stata doesn't generate them. The syntax is correct so I can't figure out...
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Stata not producing graphs
 3 posts

Mauchly's test of sphericity command
I am trying to test the assumption of sphericity for the purpose of running a repeated measures ANOVA. I did not happen to come across the command for...
 11 posts

Adding percentiles to boxplots
Hello,
I am using this code for boxplots 
graph box , ///
over(month, relabel()) ///
...
 2 posts

Competing risk syntax
Does anyone know if Stata has syntas for competing risks survival analysis? The current syntax stcrreg is an option, but it is based on the Fine and Gray...
 4 posts

Jack Chau started a topic Generating multiple variables with loops (repeated measures  longitudinal data)in GeneralGenerating multiple variables with loops (repeated measures  longitudinal data)
Hello,
I have a dataset that is similar to the following:
clear
input str6 id byte(ja18aqol1 ja18aqol2 ja18aqol3 ja18aqol4...
 4 posts

Generate multiple variables with loops
Hello,
I have the following code:
g Q1 = aqol1
g Q2 = aqol2
g Q3 = aqol3
g Q4 = aqol4
g Q5 = aqol5...
 4 posts

Maximum dates
Hi all,
If I have panel data and I want to create a new variable containing the maximum of another variable how would I do that?
...
 5 posts

Calculating the mean
Hello,
Suppose I have data as follows:
. list , clean
id s_htdate s_testdate cvd
1. 1 3/23/1992 12/30/2003 0...
 2 posts

Snapspan
Hi all,
I wanted to confirm whether or not my data requires me to use the snapspan command. Suppose, I have IDs with multiple records and...
 2 posts

Calculating person time and incidence rates
Hi all,
I wanted to know how to calculate person time and incidence rates given data that is set up in a similar fashion:
ID...Last edited by Jack Chau; 28 Dec 2014, 14:05.
 18 posts

Multiple observations per ID according to a second variable
Hi,
As the title suggests I am having a problem where I have multiple observations per ID according to a second variable.
My...
 34 posts

STATA Calculating dates
Hello,
I am having problems with the following
a) Converting my data from a long dataset to a wide. I understand the command function...
 11 posts