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write_gct adds in the index column
I'm using write_gct to output a GCT file. GCT files normally have the following columns: name, description, sample1, sample2...
But when I use write_gct, it has the following columns: id, name, description, sample1, sample2...
I've tried dropping the index column from my dataframe, but that doesn't fix the problem. My current code is as follows:
gctoo = GCToo(expression_df)
write_gct.write(gctoo, output_filename)
If I was writing the file myself, directly from the Pandas data frame, I would simply use:
expression_df.to_csv(output_filename, sep='\t', index=False)
Unfortunately, there doesn't seem to be an option in write_gct to accomplish this. Any guidance would be appreciated.