On Jun 22, 2010, at 4:57 AM, Jeff08 wrote:
Okay, it crosstab seems to work when I clear out a bunch of my
variables,
went from 800 mb Vcol to 100 mb
Can anyone explain how memory works in R, because my lack of
understanding
with memory was clearly the problem.
Making the assumption th
Okay, it crosstab seems to work when I clear out a bunch of my variables,
went from 800 mb Vcol to 100 mb
Can anyone explain how memory works in R, because my lack of understanding
with memory was clearly the problem.
Jeff08 wrote:
>
> ##I have also tried the reshape package
> library(reshape)
##I have also tried the reshape package
library(reshape)
mm <- melt(df, id=c("date_", "id"))
mm1 <- cast(mm, date_~id)
aba <- mm1[,-1]
final <- as.matrix(aba)
colnames(final) <- df$id
rownames(final) <- mm1$date_
final
##Again it works perfectly here, but when I get to my real dataset, I ge
df<-data.frame()
df[1:8,1]<-c("1","2","5","3","1","4","3","5") ##identifier 1
df[1:8,2]<-c("c","a","b","c","a","b","b","a") ##identifier 2
df[1:8,3]<-c(1,2,3,4,5,6,7,8) ##value
##Each unique combination of identifiers identifies a datapoint
##What I am trying to do is create a matrix with value
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