Displaying 4 results from an estimated 4 matches for "rkinzer".
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kinzer
2012 Feb 06
3
Duplicate rows when I combine two data.frames with merge!
Hello all,
First I have done extensive searches on this forum and others and nothing
seems to work. So I decided to post thinking someone could point me to the
write post or give me some help.
I have drawn a 100 samples from a fictitious population (N=1000), and then
randomly selected 25% of the 100 samples. I would like to now merge the
data.frame from the 100 samples with the data.frame for
2010 Feb 26
2
R Experts
...markd recapd
8/28/1991
12/24/1994
Timeoutd<-recapd-markd
Timeoutd = 1945
But the number of days between should be around 1214.
Why is this happening and how do you fix it.
Thank you for all the help.
RKinzer
[[alternative HTML version deleted]]
2011 Apr 14
2
Conveting SAS Proc mixed to R code
Hello all,
I am trying to teach myself R and replicate some previous SAS analysis.
Could someone please help me translate the following SAS code into R.
Proc mixed method=ml
Class Group Treatment Stream Time Year;
Model Logrpk=Treatment Time Treatment*Time;
Random Group Stream (Group Treatment) Year(Time);
Thank you to anyone that may help!
--
View this message in context:
2011 Apr 14
0
Help converting SAS Proc mixed to R code
To anyone that may be able to help,
First I applogize if this message ends up in your inbox twice. The first
one seemed to get stuck in a pending status so I deleted and started over.
I am relatively new to R, however I know the basics through some classes I
have taken. Unfortunately the classes left off the more complicated
analysis that I need to learn and use. I am attempting to replicate