From: Junhui Liao <junhui.liao@...>
Date: 2010-07-24T19:24:46+09:00
Subject: re-organize original text data then write in files

Dear all,

Recently, I have to do this job.
Re-organize the original text data then write in files.
The original data is like this (tsv format).

First line: time_1.1   signal_1.1  time_2.1   signal_2.1  ...
time_4096.1  signal_4096.1 (total 4096 pairs).
Second line: time_1.2   signal_1.2  time_2.2   signal_2.2 ...
time_4096.2  signal_4096.2(total 4096 pairs).
 .......
last line(totally 2048 lines): time_1.2048   signal_1.2048  time_2.2048
signal_2.2048  ... time_4096.2048  signal_4096.2048 (total 4096 pairs).

What shall I do is,

Step 0, all of the time_n.* should subtract to the time_n.1. That is to
say,
time_1.1, time_1.2, ... time_1.2048 should subtract time_1.1.
time_2.1, time_2.2, ... time_2.2048 should subtract time_2.1.
....
time_4096.1, time_4096.2, ... time_4096.2048 should subtract
time_4096.1.

Step 1, make all of the time_k.* and signal_k.* in each line collected
together and save in files, let's say, file_k.tsv .
Namely, all of the time_1.1 , signal_1.1, time_1.2, signal_1.2 ......
time_1.2048, signal_1.2048 should save in file_1.tsv. And the first line
is time_1.1  signal_1.1; the second line is time_1.2, signal_1.2 ......
the last line is time_1.2048, signal_1.2048.

All of the time_2.1 , signal_2.1, time_2.2, signal_2.2 ......
time_2.2048, signal_1.2048 should save in file_2.tsv. And the first line
is time_2.1  signal_2.1; the second line is time_2.2, signal_2.2 ......
the last line is time_2.2048, signal_2.2048.
 ......
All of the time_4096.1 , signal_4096.1, time_4096.2, signal_4096.2
...... time_4096.2048, signal_4096.2048 should save in file_4096.tsv.
And the first line is time_4096.1  signal_4096.1; the second line is
time_4096.2, signal_4096.2 ...... the last line is time_4096.2048,
signal_4096.2048.


Already, I developed a script in C++, but it cost around 3 hours to deal
with this job.
And I am totally new guy to ruby, perl, a little on Python.
So, my question is,

1, how many time it will be cost to do this job under ruby?
If the time less than one and a half hours, then it worth to study for
me. I was attracted by the beautiful ruby, already : ) .
2, Is there any similar example ?

Best regards !
Junhui
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