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Re: Load multiple csv files together and at once


From: Ian McCallion
Subject: Re: Load multiple csv files together and at once
Date: Fri, 22 Nov 2019 10:44:11 +0000

On Fri, 22 Nov 2019 at 10:06, zs1992 <address@hidden> wrote:
>
> Hi everyone,
> I'm trying to load multiple csv files(over 200) at once, so I could write
> the whole data to Netcdf files.
> Since the csv files are mixed with numbers, date strings and column names, I
> can't use csvread or dlmread, otherwise I get weirdly-arranged data. I also
> tried dataframe, but it takes 28 seconds to read a csv file, which is way
> too time-consuming.
> Currently, what works for me is csv2cell, which converts a csv into a cell
> array. However, the csv files I have have different numbers of columns(also
> different column names). Therefore I can't concatenate them into one big
> cell array.
> Is there any good solutions to that?

Can you give us an example of your inputs and what you want to produce
as a intermediate stage, just before writing to NetCdf?

Cheers... Ian



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