Category "scipy"

Trouble computing integral with scipy quad

I'm trying to compute the following definite integral: Integral I want to compute: where rho_ch is and a = 3.66 * 10^(-15) m (in meters) b = 0.54 * 10^(-15) m

Scipy minimize returns a higher value than minimum

As a part of multi-start optimization, I am running differential evolution (DE), the output of which I feed as initial values to scipy minimization with SLSQP (

How can I reduce the artifacts generated during "Thin Plate Spline" interpolation in Python?

At the Top "right", there is the 2D-density plot of the recorded data (actual), fewer in number. On the top-left is the interpolated data (thin-plate), i.e. la

Generating constraints for optimization in scipy using loop

There are lots of constraints which I will use in optimization using scipy; so I need to generate the constraints by loop. Below there's a sample of my constrai

Installing scipy and scikit-learn on apple m1

The installation on the m1 chip for the following packages: Numpy 1.21.1, pandas 1.3.0, torch 1.9.0 and a few other ones works fine for me. They also seem to wo

Why does find_objects give a bunch of Nones and then range of the whole image?

I am trying to find all objects detected in difference of frames, I thougt this would give a list of each area detected in the threshold, but find_objects is gi

Labelling connected components of an image with scipy

Hello I am following this example for labelling connected components of an image. I understand how to measure and label the blobs seen in this link. However how

No strict inequalities in cvxpy problem but still get the error "Strict inequalities are not allowed"

I was using the CVXPY library in Python, trying to solve a particular optimization problem. import cvxpy as cp import numpy as np from scipy.stats import norm

Interpolation function for compass bearings in python

Essentially, I have a CSV file full of compass bearings in radians from 0 to 2pi and attached timestamps that looks something like this: time, bearing 0.36,0.01

NumPy Interpolate Between Two 2-D Arrays At Various Timesteps

I have a pair of two-dimensional arrays from a gridded dataset (in GeoTIFF format), both with the exact same resolution and number of rows/columns. Suppose Arra

Efficiently get shadow prices in scipy linprog

I have a huge linprog problem of almost 1k variables and restrictions. I can calculate the solution with scipy.optimize.linprog(method='simplex') but I need sha

peak_widths w.r.t to x axis

I am using scipy.signal to calculate the width of the different peaks. I have 100 values wrt to different time points. I am using following code to calculate th

NumPy adds a dot after each element of an array which I can’t strip

I am trying to write code which generates a sound file based on a series of frequencies I give it, but I have reached a point where compiling the arrays of inte

Imitate ode45 function from MATLAB in Python

I am wondering how to export MATLAB function ode45 to python. According to the documentation is should be as follows: MATLAB: [t,y]=ode45(@vdp1,[0 20],[2 0])

Generate underlying distribution from bins in python

I found a PDF document describing the income distribution in the US in 1978. Per income range I have the percentage of the population that falls in that income

How to get intercept slope and fit line by using scipy ODR

I am new to python. I want to perform orthogonal distance regression by using Scipy ODR by using the code below. I do not know how can I extract slope and inter

SciPy interpolation: precision of methods?

SciPy interpolation has 3 supported methods: Supported are “linear” and “nearest”, and “splinef2d”. “splinef2d”

How to perform a Levene's test using scipy

I've been trying to use scipy.stats.levene with no success. I have a numpy matrix with shape (2128, 45100). Each row is a sample and belongs to one of 3 cluste

How do I find the KL Divergence of samples from two 2D distributions?

Suppose I had two 2D sets of 1000 samples that look something like this: I'd like to have a metric for the amount of difference between the distributions and

Using matplotlib to create a spectrogram of a wavfile

import scipy.io.wavfile as wav import matplotlib.pyplot as plt import scipy sample_rate, X = wav.read("/Users/sinaastani/Downloads/partynextdoor.wav") X = scipy