sir, i have a text file ... which consists of 60000 rows and 15 columns.... i have to read the 2nd and 4 th column... all other columns are 0 matrix...in that i have to read the 2nd and 4th column ... what i have to do??

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Ruby 2014-6-12

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回答： Zikobrelli 2014-6-12

i have a text file ... which consists of 60000 rows and 15 columns.... i have to read the 2nd and 4 th column... all other columns are 0 matrix...in that i have to read the 2nd and 4th column ... what i have to do?? error shows like index exeeds matrix dimensions

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Zikobrelli 2014-6-12

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Hi ruby, can you please send an example?

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