hello, i am working on microarray data, to find out differentially expressed genes. i want to use samr package to check fdr and tried to find out significantly differentially expressed gene. i have follow samr tutorial but it shows error.

1: In read.table(file = file, header = header, sep = sep, quote = quote,  :
  line 1 appears to contain embedded nulls
2: In read.table(file = file, header = header, sep = sep, quote = quote,

kindly suggest me tutorial. thanking you