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Re: how can I read many columns and rows [message #92946 is a reply to message #92945]

Thu, 31 March 2016 09:39

wlandsman
Messages: 743
Registered: June 2000

Senior Member

On Thursday, March 31, 2016 at 10:55:03 AM UTC-4, Ali Gamal wrote:
> On Tuesday, March 29, 2016 at 8:21:02 PM UTC+2, Ali Gamal wrote:
>> Hi everyone,
>> I have data file contains 30 column, every column contains 20 row. How can I read this file ?
>
> I have file data contains many columns, I want to know How can I read this file?, then how can I define each column to use this column in mathematical operations?.

Several previous posters already told you how to read the data into an array.

Once you have an array, arr, then you can, for example, select the 6th column

column5 = arr[5,*]

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[Message index]

		how can I read many columns and rows By: Ali Gamal on Tue, 29 March 2016 11:20
		Re: how can I read many columns and rows By: Paul Van Delst[1] on Tue, 29 March 2016 11:53
		Re: how can I read many columns and rows By: Nikola on Wed, 30 March 2016 02:35
		Re: how can I read many columns and rows By: Ali Gamal on Wed, 30 March 2016 07:25
		Re: how can I read many columns and rows By: Fabzi on Wed, 30 March 2016 13:28
		Re: how can I read many columns and rows By: Ali Gamal on Thu, 31 March 2016 06:33
		Re: how can I read many columns and rows By: Ali Gamal on Thu, 31 March 2016 07:55
		Re: how can I read many columns and rows By: wlandsman on Thu, 31 March 2016 09:39
		Re: how can I read many columns and rows By: Ali Gamal on Thu, 31 March 2016 10:38
		Re: how can I read many columns and rows By: wlandsman on Thu, 31 March 2016 11:50
		Re: how can I read many columns and rows By: Ali Gamal on Thu, 31 March 2016 12:50
		Re: how can I read many columns and rows By: Paul Van Delst[1] on Thu, 31 March 2016 13:29
		Re: how can I read many columns and rows By: Ali Gamal on Fri, 01 April 2016 05:36

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