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read data column wise

 
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read data column wise, can turbo c be used to read .txt files column wise
ankurbahri
post 5 Aug, 2008 - 09:07 PM
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can some one please give a link to a web site or any piece of information that can help me read data in a .txt file column wise????
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Martyr2
post 5 Aug, 2008 - 09:18 PM
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Perhaps you can explain further on what you mean by read by column. Files are horizontal. Columns are only separated row data. If I want to read down the first column I am going to loop through the rows reading a specific character(s) from each row.

CODE

test 1
test 2
test 3


This is column data (2 columns) but is actually three rows of data and if I want to read the number here (column 2) I am going to read character 6 from each row. So I would loop through the rows and read character 6 in that loop.

Hope that makes sense. smile.gif
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ankurbahri
post 5 Aug, 2008 - 10:58 PM
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for example mt file looks somthing like this:-

a b c d e f
1 2 3 4 5 6
7 8 9 10 11 12
13 14 15 61 62 27


now if i want to read say the data of only column d i.e 4,10,61... then how do i do it???????
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gabehabe
post 6 Aug, 2008 - 03:37 AM
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First, you would want to loop through the first line to find a number representation of column d. Make it ignore the spaces, this will result in a column number of 4.

Now read until you reach a '\n' character (new line)

Then, loop through each row until you find the column that you are looking for. Read this in from the file, and continue until you reach a new line.

Hope this helps smile.gif
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