Issue with number of columns in matrix upload

[felipead6]

I try to upload a matrix with expression analysis with 16 columns, one column is the file name and the rest 15 is the data.

I have uploaded biomaterial with 15 samples, matching the names of the samples.

My issue is that when I upload the matrix I get the following notice:

"Notice: Undefined index: re_stop in tripal_expression_data_loader->run() (line 350 of /var/www/clients/client31/web132/web/sites/all/modules/tripal_analysis_expression/tripal_analysis_expression/includes/TripalImporter/tripal_expression_data_loader.inc)."

and in the jobs description I get:
"Loading complete: 0%. Memory: 29,262,080 bytes.
Expression data in the data section of the matrix format must have a feature name followed by tab separated expression values. The number of expression values for each feature must equal the number of biomaterials in the matrix file header. Example matrix format:
...
Loader failed on the following line:
seq1 58.31 49.35 31.57 28.39 27.09 16.95 31.89 39.82 28.33 25.85 23.47 36.57 34.74 28.97 33.1

. Expected 17 columns but only found 16 column(s).

Done.
Committing Transaction..."

Please advise me on how to proceed

[spficklin]

@felipead6 I've rewritten the Expression loader with this PR #397. If you'd like to test your file again (provided you are still having the problem) and see if the issue is fixed with that PR.

But also, I believe the input matrix file header must have one fewer element than the rest of the rows because the first column of the data rows is the gene name. I don't think that was the source of the problem you hit on but it may cause some problems.