Hi all,
        ok.i will go straight to the problem but d bear with me a it's
a complex problem .

first the thing that is to be done..

i have this file which is in a tab delimited format.This is a huge
file with 3000 experiments and having 23000 probes with each
experiment having one signal value for each probe...eg:

File1:example.txt

ProbeNames      Exp1    Exp2    Exp3    Exp4    Exp5
244901_at       24.3    46.4    37.4    19.5    59.6
244902_at       36.6    92.4    49.5    19.3    29.6
244903_at       46.4    19.4    -       18.2    19.8
244904_at       56.2    29.4    78.4    37.8    -


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