Python Dictionary

My python is 3.5.1 (32-bit) at Win7 (32-bit). I've installed 'scipy-0.16.1-cp35-none-win32… Read more Import Scipy.sparse Failed

I have data files containing lists of strings representing ISO formatted dates. Currently, I am rea… Read more Convert List Of Datestrings To Datetime Very Slow With Python Strptime

I am trying to solve a pandas problem statement. The panda's data frame looks like this : impor… Read more Np.select With More Than Two Pandas Column

I'm trying to obtain an image from 3D array and convert it to TIF 3D. I'm using simple ITK … Read more Python - Write A Three Dimensional Image From 3d Array

I have a set of CSV data that is 4203x37 which I reshape to 50436x4 in order to find the Euclidean … Read more Bizarre Issue With Pandas' .groupby Function, When Function Applied To Rows

i have this test table in pandas dataframe Leaf_category_id session_id product_id 0 … Read more Function To Select From Columns Pandas Df

I create an arbitrary 2x2 matrix: In [87]: mymat = np.matrix([[2,4],[5,3]]) In [88]: mymat Out[88]… Read more Eigenvectors Created By Numpy.linalg.eig Don't Seem Correct

Suppose I have a text file that looks like this: 33 3 46 12 23 10 23 11 23 12 23 13 23 14 23 … Read more Reading Non-uniform Data From File Into Array With Numpy

I´ve got a 3D numpy bit array, I need to pack them along the third axis. So exactly what numpy.pack… Read more Numpy Packbits Pack To Uint16 Array

I'm using tox to prepare venv and run unit tests and my application needs openopt library which… Read more Install-time Dependencies In Requirements.txt

I am assigning the elements of a numpy array to be equal to the subtraction of 'small' valu… Read more Numpy Array Being Rounded? Subtraction Of Small Floats

I have a numpy array like this import numpy as np ar = np.array([1, 2, 3, 4]) and I want to creat… Read more Create A Matrix From A Vector Where Each Row Is A Shifted Version Of The Vector

I'm new to Python. While reading, please mention any other suggestions regarding ways to impro… Read more Efficiently Generating Multiple Instances Of Numpy.random.choice Without Replacement

This is a relative question of the post How to extract rows from an numpy array based on the conten… Read more How To Extract Arrays From An Arranged Numpy Array?

I have a pandas df like the following: import pandas as pd import numpy as np data = np.random.rand… Read more Python Pandas Dictionary With Numpy Arrays

I am trying to make DFT (discrete fourier transforms) plots using pcolor in python. I have previous… Read more Python Pylab Pcolor Options For Publication Quality Plots

I am trying to plot a curve on a sphere but I can not plot them at the same time. I identified some… Read more I Have A Problem With Plotting Sphere And A Curve On It

I would like to plot a line with varying thickness using matplotlib in python. To be clearer, I hav… Read more Fat Band Using Matplotlib In Python

I am trying to divide elements of a one column of pandas data frame with same row index elements of… Read more Difference Between Dataframe.div And Dataframe.divide In Pandas

Would you help me understand if it possible to call map with multiple arguments ? My goal is to cal… Read more How To Pass Multiple Arguments To Map()?