Large files won't load.

10 visualizaciones (últimos 30 días)
Gilbert Bates
Gilbert Bates el 28 de Oct. de 2020
Comentada: Walter Roberson el 30 de Oct. de 2020
Can you tell me what's wrong with this file?
  2 comentarios
madhan ravi
madhan ravi el 28 de Oct. de 2020
No files are attached.
Gilbert Bates
Gilbert Bates el 29 de Oct. de 2020
Editada: Walter Roberson el 30 de Oct. de 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!

Iniciar sesión para comentar.

Respuestas (1)

drummer
drummer el 30 de Oct. de 2020
Editada: drummer el 30 de Oct. de 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 comentarios
Gilbert Bates
Gilbert Bates el 30 de Oct. de 2020
Thank you drummer!
I did try the variation you suggested, among many variations, with all resulting in some other error. But I think you are correct with datastore accepting .mat and following a few links, I think it is the filedatastore command that I need to use and that's where .mat is being mentioned. However, it looks like I need to write a custome read function as part of the commend. I'm looking through it now...
Walter Roberson
Walter Roberson el 30 de Oct. de 2020
'fileextensions' might be from a release newer than you are using. I think it was added in R2019b.

Iniciar sesión para comentar.

Categorías

Más información sobre Large Files and Big Data en Help Center y File Exchange.

Etiquetas

Productos

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by