In the stochastic gd example, why have we used x.reshape((-1,)) ?
Reshaping the data using -1 index?
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this is used to automatically reshape the multi-dimensional array into one dimensional array . “-1” is used to automatically find the right number for single dimension and blank after comma represents that it is to be reshaped into single dimension array . I hope i could clear it as i am a student like you 
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