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slide
2006 Oct 15
1
how can i compute the average of three blocks for each column ?
...# How can i calculate the means of remaining x_variables?
######### Read data for the remaining slides =x2,x3,x4,x5 ###########
for (i in 2:num.slides){
na1 <- strsplit(na[[i]][k],".txt")
na2 <- strsplit(na1[[1]][1],"-")
bat=na2[[1]][1]
sli=na2[[1]][2]
nslide <- cbind(nslide,as.numeric(sli))
# nslide is a vector giving the number of the slide in the batch
# read table of data for this slide
a<-read.table(file=slide[i],header=T,sep='\t',na.strings="NA")
new<- subset(a,!ID %in% c("empty","none","...