Importing only a fraction of a database using dataset

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Sebastiano delre 2016-5-14

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评论： Sebastiano delre 2016-5-15

采纳的回答： Azzi Abdelmalek

I have a large dataset in csv format (400MB). How can I import in MatLab only the first 500 rows?

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Sebastiano delre 2016-5-14

Actually csvread does not work for me because my data contain not only numerical variables. I have also strings and cells. Is there a way I can use the function dataset?

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Azzi Abdelmalek 2016-5-14

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在 MATLAB Online 中打开

nc=6; % Number of column in your csv file
nr=500  
data=csvread('file.csv',0,0,[0 0 nr-1 nc-1])

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Walter Roberson 2016-5-14

xlsread() accepts range arguments.

You have R2013b according to your other postings; you could consider readtable() . I do not know how fast that would be; I seem to remember later releases made it faster.

Sebastiano delre 2016-5-15