Newbie: Incorrect number of dimensions

dim(data.sub)

[1] 10000   140

#####extracting all differentially express genes##########
library(multtest)
two_side<- (1-pt(abs(data.sub),50))*2
diff<- mt.rawp2adjp(two_side)
all_differ<-diff[[1]][37211:10000,]
all_differ

#####list of differentially expressed genes##########

probe.names<-

+ all_differ[[2]][all_differ[[1]][,"BY"]<=0.01]

Error in all_differ[[1]][, "BY"] : incorrect number of dimensions

Hi,

I am pretty new with R. What i am trying to do is to find all differentially
express genes and list of differentially expressed genes. Am i doing
something wrong?

I keep getting incorrect number of dimensions. How do i find out the correct
dimensions? 

thanks,
Keizer

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