I am trying to make an array c(3,8) that contains the averages of what is in
another array c(9,8). I want to average rows 1:3, 4:6, 7:9 and have a loop
replace the generic 1:24 values in my array with the average of the three
rows.
The problem I am having is that R only replaces the last value from the
loops, and I am not experienced enough with R to know how it stores data
when looping and how to overcome this problem. By having it print the avg, I
was expecting to see 24 numbers, but it only gives me one.
Here is my code.
cts.sds<-array(1:24,c(3,8))
for(i in 3){
for(j in 8){
avg<-sum(exprdata[3*i-2:3*i,j]/3)
cts.sds[i,j]<-avg
print(avg)
}
}
print(cts.sds)
Any help with this pesky matter will be greatly appreciated.
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