search for: ryank

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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
I am trying to understand why R is working in a particular way. I have a data set with two variables; mark date (markd) and recap date (recapd). I would like to know the number of days between capture dates. But if I subtract recap date from mark date I often get the wrong results. Example: Dataset - markd recapd
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
2006 Apr 11
1
dspam plugin
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hey everyone.. been struggling with building a mailserver and i'm almost done. One of the last pieces is integrating dovecot with dspam so that I'm users can train their spam filters easily (sieve filtering is the last piece left.. that should be interesting.. lol) Anyway, I think i found an issue with memory allocation, and I'm not sure