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Rachit johri
online exam
0 Answer(s)      2 years and 8 months ago
Posted in : JSP-Interview Questions


The file geneexpr500x204.gct contains gene expression values for 500 genes (analytes) and 204 samples.

(a) Extract the sample names from the file geneexpr500x204.gct. Save the list (one sample name per line) to a text file called "samples.grp" (b) Rename the sample names in samples.grp to a three-character fixed width format with zero-padded digits. For example the names A1,B9 and C10 are renamed as A01, B09 and C10 respectively. Sort the list alphabetically and save the list to a text file called "sorted_samples.grp" Provide source code and the output files.

Use - any of shell script or perl.

This file geneexpr500x204.gct has been sent separately to you by email.


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