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Showing posts with the label Arrays

All Ways Of Partitioning A List Into Two Non-empty Lists

[0.0, 1.0, 2.0, 3.0, 4.0] I have 5 numbers and two groups, left and right. Each number has two choi… Read more All Ways Of Partitioning A List Into Two Non-empty Lists

Value Error, Truth Error, Ambiguous Error

When using this code for i in range(len(data)): if Ycoord >= Y_west and Xcoord == X_west: … Read more Value Error, Truth Error, Ambiguous Error

Selecting Close Matches From One Array Based On Another Reference Array

I have an array A and a reference array B. Size of A is at least as big as B. e.g. A = [2,100,300,7… Read more Selecting Close Matches From One Array Based On Another Reference Array

Numpy Array Fromfunction Using Each Previous Value As Input, With Non-zero Initial Value

I would like to fill a numpy array with values using a function. I want the array to start with one… Read more Numpy Array Fromfunction Using Each Previous Value As Input, With Non-zero Initial Value

Why Is The Dtype Shown (even If It's The Native One) When Using Floor Division With Numpy?

Normally the dtype is hidden when it's equivalent to the native type: >>> import numpy… Read more Why Is The Dtype Shown (even If It's The Native One) When Using Floor Division With Numpy?

Connect All 2d Points From Numpy 2d Arrays As A Triangular Meshgrid

I am pretty new to Python and I am trying to plot a triangular grid like this: import matplotlib.py… Read more Connect All 2d Points From Numpy 2d Arrays As A Triangular Meshgrid

Memory Efficient Way To Split Large Numpy Array Into Train And Test

I have a large numpy array and when I run scikit learn's train_test_split to split the array in… Read more Memory Efficient Way To Split Large Numpy Array Into Train And Test

Numpy Array Being Rounded? Subtraction Of Small Floats

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

To Convert From Python Arrays To Postgresql Quickly?

This is a follow-up question to: How to cast to int array in PostgreSQL? I am thinking how to conve… Read more To Convert From Python Arrays To Postgresql Quickly?

Filter List Using Boolean Index Arrays

How can I use boolean inddex arrays to filter a list without using numpy? For example: >>>… Read more Filter List Using Boolean Index Arrays

Nan To Num Python

I have multiple array that for those I calculate a linear regression, but sometimes it gives me 0/0… Read more Nan To Num Python

Memory Error While Calling Genfromtxt Method

Code : import scipy as sp import matplotlib.pyplot as plt data=sp.genfromtxt('data/train.tsv&… Read more Memory Error While Calling Genfromtxt Method

Selecting Random Values From List Until They Are Gone In Python

Using Python, I want to randomly select people from a list and put them in groups of 5 without sele… Read more Selecting Random Values From List Until They Are Gone In Python

How To Import Multiple Bands From An Image Into Numpy?

I'm new to python/numpy. I need to import n bands of data (~125) from a multiband image into an… Read more How To Import Multiple Bands From An Image Into Numpy?

Python Json. Getting Only The Last Element In The Json Array

I just started trying out python, and right now i am in a little bit of a dilemma. I am trying to p… Read more Python Json. Getting Only The Last Element In The Json Array

Finding Common Elements In List In Python

Finding common elements in list in python? Imagine if i have a list like follows [[a,b],[a,c],[b,c]… Read more Finding Common Elements In List In Python

Python: How To Add Column To Record Array In Numpy

I am trying to add a column to a numpy record. This is my code: import numpy import numpy.lib.recf… Read more Python: How To Add Column To Record Array In Numpy

Ctypes: Fast Way To Convert A Return Pointer To An Array Or Python List

I am using ctypes to pass an array pointer to a dll and return a pointer to an array of doubles tha… Read more Ctypes: Fast Way To Convert A Return Pointer To An Array Or Python List

Integer Limit Crossed While Performing Bitwise Left Shift Operation In Array

I am creating a numpy array using the bitwise left shift operator. For example, I create array p, w… Read more Integer Limit Crossed While Performing Bitwise Left Shift Operation In Array

Typeerror: Can't Multiply Sequence By Non-int Of Type 'float' : Prblem With Numpy Arrays

I am pretty new to Python.I know this error occurs when one tries to multiply a string with a fract… Read more Typeerror: Can't Multiply Sequence By Non-int Of Type 'float' : Prblem With Numpy Arrays