can MATLA read very large CSVs (>150GB)?

Hi all,

I need to read and analyze six very large CSV files. In each file, I'm interested in only two columns. I already used opt to try reducing the amount of data, but my PC is constantly collapsing (since it reached the max memory of 128GB and the allocated memory as well).

My question is, do you know another approach to handle such large CSV files?

Eventually, I want to split these files, but I need to read them first.

Is that right?

Thanks :)

Answer 1

[Steven Lord]

Use the tools in MATLAB for processing Large Files and Big Data.

Answer 2

[Cris LaPierre]

This sounds like what is called Big Data to me. MATLAB does have functionality for working with this data, A good starting place may be the Big Data with MATLAB page. You may be particularly intersted in the functionality for Tall Arrays.

Here's a good example you may be able to follow to get started.

• Analyze Big Data in MATLAB Using Tall Arrays

[sani]

Thsnk you for your answer!

can I convert a Tall array to a table later? (my script already working with tables, should I do any modifications?)

[Cris LaPierre]

MATLAB Tables were designed to work with Tall Arrays. See the 'Extended Capabilities' section of the coresponding doc pages

• https://www.mathworks.com/help/matlab/ref/table.html#refsect-extended-capabilities