Importing big data from txt/excel file

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Burak Dermenci
Burak Dermenci le 27 Mar 2017
Commenté : Wei Wang le 21 Déc 2018
Hi all,
I have quite large number of battery test data which contain hundreds of thousands data from each 13 columns (totally million of them). I generally convert them into txt and/or excel. However, when importing the file by using xlsread or import; it takes a few hours.
I'm looking for a more easy way to import txt or excel file in a shorter time. My purpose is to draw a 2D plot choosing any 2 columns of them.
  1 commentaire
Wei Wang
Wei Wang le 21 Déc 2018
You can use the function: tall to deal with the big data. It is extremely fast.
good luck.

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Robert Alvarez
Robert Alvarez le 27 Mar 2017
Read your data into excel then export them as comma-separated-values (csv) then read into Matlab with csvread

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