Thread: How to Extract data from text file, modify data in a text file and save it

Hi,

I have got two problems with file operations.

(1) how to read data from a text file into a matrix from second line

txt file like this:

a b c d
1 2 3 3
5 6 6 7

I want to get x= [ 1 2 3 3; 5 6 6 7] for calculation from the text file.

(2) How to modify some real numbers in a text file and save it for another use.

txt file like this:

a
b
1.1
2.1
4.6
6.8

I want to modify these real numbers: 1.1 2.1 4.6 6.8 to other real numbers, say 2.1 3.0 8.0 9.2, and save these changes in this text file for running other program.

Thanks for your help!
Shark

It must be really hard being a completely blind programmer. Because if you weren't blind, you would have seen this link right at the top of the list when you posted: Extracting Information from Files


Quzah.

You expect us to do it for you? Good luck with that.


Quzah.