Question: mRNA.Exp[[page.Counter]] : subscript out of bounds
gravatar for j11patel
2.6 years ago by
j11patel0 wrote:

i am trying to download mRNA expression for selected gene using tutorial available at below location

But, it is giving me an error:

"Error in mRNA.Exp[[page.Counter]] : subscript out of bounds In addition: Warning message: In download.Data(url, format, page) : The API responded with code 414. Your query might be to big"

diff.Exp.Genes = c("ESR1,GATA3,XBP1,FOXA1,ERBB2,GRB7,EGFR,FOXC1,MYC")

all.Found = F

page.Counter = 1 mRNA.Exp = list()

page.Size = 2000 # using a bigger page size is faster

while(all.Found == F) {

mRNA.Exp[[page.Counter]] = Samples.mRNASeq(format = "csv",

                                         gene = diff.Exp.Genes,
                                         cohort = "BRCA",
                                         tcga_participant_barcode =
                                         page_size = page.Size,
                                         page = page.Counter)

if(nrow(mRNA.Exp[[page.Counter]]) < page.Size)

all.Found = T


page.Counter = page.Counter + 1

} mRNA.Exp =, mRNA.Exp)


Please let me know how to resolve this

firebrowse samples.mrnaseq R • 926 views
ADD COMMENTlink modified 2.5 years ago by Haci170 • written 2.6 years ago by j11patel0


Were you able to fix that error? I've just come across the error and never really used FirebrowseR before. Any help would be appreciated! Thanks.

ADD REPLYlink written 8 months ago by chetana40
gravatar for Haci
2.5 years ago by
Haci170 wrote:

The tutorial subsets only the dead patients: brca.Pats = brca.Pats[ which(brca.Pats$vital_status == "dead"), ]

Otherwise, as the authors state:

downloading mRNA expression data for a thousand patients would take a lot of time, later on.

I suspect that you missed that subsetting step and that is why you are getting the code 414 error. Unfortunately I do not know how to extract all the data, also a newbie.

ADD COMMENTlink written 2.5 years ago by Haci170
Please log in to add an answer.


Use of this site constitutes acceptance of our User Agreement and Privacy Policy.
Powered by Biostar version 2.3.0
Traffic: 1248 users visited in the last hour