Displaying 3 results from an estimated 3 matches for "startyear".
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start_year
2008 Jun 26
2
stuck on making a line graph across time, with 4 categories
I can't seem to find just what I'm looking for in R help, Everitt and
Hothorn HSAUR, Murrell's book, or the R graphics gallery at
http://addictedtor.free.fr/graphiques/. Probably not looking
efficiently, but anyway,
If my data look like this:
> head(data)
cat startyear studentid
1 other 2001 12
2 UHS 2001 17
3 Lourdes 2001 10
4 Endwell 2001 3
5 other 2002 13
6 UHS 2002 19
>
What is the easiest way to make a line graph like this (made this one in
Stata):
http://bingweb.bingha...
2009 Nov 24
1
reshaping data
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2010 Apr 07
0
question about fold function
...bers of the time-dependent covariate in
data, or a list of vectors
if there is more than one time-dependent covariate."
But I'm struggling with the syntax to list these vectors (I have 2 time varying
covariates). But this just gives me an error message.
>d6#my data
SURVIVAL DEAD STARTYEAR SMALLINNO TOTALINNO ADVERTISE WAGE PRICECOST CAPITAL ENTRYRATE CR4
1 1 0 1999 1.724 1.724 0.3580 6.154 22.422 5.480 22.92 42.24
2 1 0 1999 1.942 1.942 0.2262 8.197 24.161 12.534 24.75 28.29
3 1 0 1999 1.942...