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Tag: scipy

Scipy ifft gives different results with seemingly identical input

Why would xcorr and xcorr2 be quite different here? M1 and M2 are numpy matrices. M1.shape[0] = M2.shape[0]. xcorr is what I would expect with this operation, but xcorr2 is something totally different and has imaginary numbers. xcorr does not have imaginary numbers. Answer Try giving xcorr and xcorr2 dtype=complex. According to scipy docs, the output from both fft and

getting “KeyError” while implementing Z-score on a dataset

I have been trying to implement z-score normalization to all of the numeric values present in combined_data with the following code: Here, combined_data is the combination of training and testing datasets as a dataframe and passed through one-hot encoding. I am seeing the following error: The dataset combined_data contains 257673 rows & 198 columns Here is the sample data of

How to run scipy’s BFGS on GPU

I’d like to run scipy implementation of BFGS optimization algorithm on GPU and scipy seems not to support GPUs. The target function which I want to run on GPU is the following one which is part of the implementation of this repository: I know there is Tensorflow Probablity implementation of BFGS, but I couldn’t find out how I can convert

Scipy – probability in binomial distribution

I’m trying to use scipy in order to calculate a probability, given a binomial distribution: The probability: in an exam with 45 questions, each one with 5 items, what is the probability of randomly choose right (instead of wrong) more than half the exam, that is, 22.5? I’ve tried: How do I calculate this with scipy? Answer Assuming there’s exactly

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