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Showing posts with the label Numpy

Can't Install Numpy 1.8 With Python 2.7 Under Windows 7

I have donwloaded numpy 1.8 zip version and I have python 2.7 and windows 7. When I do python setup… Read more Can't Install Numpy 1.8 With Python 2.7 Under Windows 7

Why Does Outputing Numpy.dot To Memmap Does Not Work?

If I do: a = np.ones((10,1)) b = np.ones((10,1)) c = np.memmap('zeros.mat', dtype=np.float6… Read more Why Does Outputing Numpy.dot To Memmap Does Not Work?

Calculating Rsi In Python

I am trying to calculate RSI on a dataframe df = pd.DataFrame({'Close': [100,101,102,103,10… Read more Calculating Rsi In Python

Vectorizing Triple For Loop In Python/numpy With Different Array Shapes

I am new in Python/Numpy and is trying to improve my triple for loop into a more efficient calculat… Read more Vectorizing Triple For Loop In Python/numpy With Different Array Shapes

Numpy.any(axis=i) For Scipy.sparse

import numpy a = numpy.array([ [0, 1, 0, 0], [1, 0, 0, 0], [0, 0, 1, 0], [0, 0, 0, … Read more Numpy.any(axis=i) For Scipy.sparse

How Can I Get Specific Rows Of A Tensor In Tensorflow?

I have several tensors: logits: This tensor contains the final prediction scores. tf.Tensor 'M… Read more How Can I Get Specific Rows Of A Tensor In Tensorflow?

Fast Fourier Transform In Python

I am new to the fourier theory and I've seen very good tutorials on how to apply fft to a signa… Read more Fast Fourier Transform In Python

Numpy To Get The Exact Arguments Of Duplicated Elements In A 2d Array

I have two 2D arrays a and b. I want to find the exact indices of a in b. I followed the solution p… Read more Numpy To Get The Exact Arguments Of Duplicated Elements In A 2d Array

How To Load Matlab's Struct (saved With V7.3) In Python

I created a 1X20 struct in Matlab. This struct has 9 fields. The struct is saved in -v7.3 version b… Read more How To Load Matlab's Struct (saved With V7.3) In Python

Improving Runtime Of Python Numpy Code

I have a code which reassigns bins to a large numpy array. Basically, the elements of the large arr… Read more Improving Runtime Of Python Numpy Code

How Can I Add Summary Rows To A Pandas Dataframe Calculated On Multiple Columns By Agg Functions Like Mean, Median, Etc

I have some data with multiple observations for a given Collector, Date, Sample, and Type where the… Read more How Can I Add Summary Rows To A Pandas Dataframe Calculated On Multiple Columns By Agg Functions Like Mean, Median, Etc

Cython Program With Numpy Arrays Does Not Allow Vectorized Inputs (only Accepts Length 1 Arrays), How To Fix?

FIXED: see updated code below. This is my first Cython attempt and have a working build but it does… Read more Cython Program With Numpy Arrays Does Not Allow Vectorized Inputs (only Accepts Length 1 Arrays), How To Fix?

Creating Hdf5 Compound Attributes Using H5py

I'm trying to create some simple HDF5 datasets that contain attributes with a compound datatype… Read more Creating Hdf5 Compound Attributes Using H5py

Why Does Comparing To Nan Yield False (python)?

Here, I have the following: >>> import numpy as np >>> q = np.nan >>> q … Read more Why Does Comparing To Nan Yield False (python)?

Memory Profiler For Numpy

I have a numpy script that -- according to top -- is using about 5GB of RAM: PID USER PR NI V… Read more Memory Profiler For Numpy

How To Reshape 3 Channel Dataset For Input To Neural Network

I am trying to feed kth action dataset to a cnn. I am having difficulty with reshaping the data. I … Read more How To Reshape 3 Channel Dataset For Input To Neural Network

Slice Syntax To Object

I have a class holding data (a numpy ndarray) that includes a method storing the data to a mat-file… Read more Slice Syntax To Object

Remove Leading And Trailing Zeros From Multidimensional List In Python

I have a list such as: my_list = [[1,2,2,1], [0,0,1,2], [1,2,0,0], [1,0,0,1]] I need to remove onl… Read more Remove Leading And Trailing Zeros From Multidimensional List In Python

Loading Several Npz Files In A Multithreadedly

I have several .npz files. All .npz file the same structures: each of them just contain two variabl… Read more Loading Several Npz Files In A Multithreadedly

Scipy.stats Seed?

I am trying to generate scipy.stats.pareto.rvs(b, loc=0, scale=1, size=1) with different seed. In n… Read more Scipy.stats Seed?