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Large files won't load.

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Gilbert Bates
Gilbert Bates on 28 Oct 2020
Commented: Walter Roberson on 30 Oct 2020
Can you tell me what's wrong with this file?
  2 Comments
Gilbert Bates
Gilbert Bates on 29 Oct 2020
Unfortunatley the compressed/zip file is still too large to attach.
Anyways, if I suspect running out of memory issues then I found that I can break up the large file by way of 'datastore' so I was going to try that. But I'm stuck and confused by this type name value pair thing with the following error.
Specify the 'Type' name-value pair argument to indicate the type of datastore to create.
ds = datastore('E:\Rise_Times\7436.mat','mat','tall');
tt = tall(ds);
The following doesn't work, how to correct? I know the file location as indicated, but not sure what I need for 'type' it's a matlab file.
ds = datastore('E:\Rise_Times\1000 Hz_10 percent_110 A_start.mat','mat','tall');
tt = tall(ds); %<- Not sure if I need this?
Thank you!

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Answers (1)

drummer
drummer on 30 Oct 2020
Edited: drummer on 30 Oct 2020
"But I'm stuck and confused by this type name value pair thing with the following error.
Specify the 'Type' name-value pair argument to indicate the type of datastore to create."
ds = datastore('E:\Rise_Times\7436.mat','mat','tall');
The name-value pair argument is a feature of MATLAB so you can inform to the native functions what value you assigning to whatever argument name you want to modify.
In your ds, you should specify the name of the argument, as you correctly specified the values.
ds = datastore('yourPath/blah.mat', 'FileExtensions', '.mat', 'Type', 'tall')
When you type ds in the command window, you will see your variable ds with the attributes of FileExtensions and Type you assigned.
Cheers
  6 Comments
Walter Roberson
Walter Roberson on 30 Oct 2020
'fileextensions' might be from a release newer than you are using. I think it was added in R2019b.

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