How to process a large file

I need to process a csv file with 280,000,000 rows and 4 columns for each row. It seemed that I cannot even import the whole file using csvread at a time. So should I divide it into pieces or anyone knows a better solution? Thanks.

Answer 1

[Steven Lord]

Find the equivalent of this documentation page in your locally installed documentation.

This area of functionality has been changing rapidly over the past several releases. The version of that documentation page included in your installation will list exactly the functions and functionality available in the release you're using. That list may be different from those available in the current release.

Answer 2

[KSSV]

You can specify the range in csvread. You can read it by chunks. Read the documentation.

You can read the file using xlsread also. In this also you can specify the ranges.

[Xiaofeng Fan]

Thanks, I am going to try it now