Displaying 2 results from an estimated 2 matches for "uveitis".
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aventis
2012 Jan 26
2
extracting from data.frames for survival analysis
Hi,
I have a data frame:
> class(B27.vec)
[1] "data.frame"
> head(B27.vec)
AGE Gend B27 AgeOn DD uveitis psoriasis IBD CD UC InI BASDAI BASFI Smok UV
1 57 1 1 19 38 2 1 1 1 1 1 5.40 8.08 NA 1
2 35 1 1 33 2 2 1 1 1 1 1 1.69 2.28 NA 1
3 49 2 1 40 9 1 1 1 1 1 1 8.30 9.40 NA 0
4 32 1 1 21 11...
2012 Jan 18
4
R-Help
I am trying to create a frequency distribution and I am a bit confused.
Here are the commands I have entered:
> data <- read.csv(file="40609_sortedfinal.csv",head=TRUE,sep=",")
> NumberOfActionsByStatus = data$STATUS
> NumberOfActionsByUser = data$ETS_LOGIN
> NumberOfBidOffer = data$BID_OFFER
> NumberOfActionsByUser.freq = table(NumberOfActionsByUser)
>