How to reshape different row of MNIST and display them

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Azar Alizadeh 2020-10-27

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https://ww2.mathworks.cn/matlabcentral/answers/628158-how-to-reshape-different-row-of-mnist-and-display-them

回答： Azar Alizadeh 2020-10-27

Hi,

Each row of MNIST dataset is an image of a number. so to display them I nead to reshape each row and plot. But since MNIST has 60000 row I can't use a for loop it takess a long time. Would you please tell me how can I reshape each row of MNIST matrix without using for loop in matlab and display each of them?

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Adam Danz 2020-10-27

What's a MNIST matrix?

Could you also clarify what you mean by reshape?

Azar Alizadeh 2020-10-27

编辑：Azar Alizadeh 2020-10-27

oh sure. sorry for unclear question. MNIST is a data set that of handwriiten numbers. so I have it as a 60000x784 matrix. that mean there are 60000 samples ( that are different number) so If I use "reshape" function of matlab like for example this {{{ I=imagesc(reshape((MNIST(1,:)),28,28)') }}} , I can reshape first row of my matrix and plot it with plots a number.

Since the dataset(matrix) is really big I don't want to use for loop to reshape each row. and plot them. would you please assist me how can I do that parrallel?

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