Category "numpy"

Load numpy array in google-cloud-ml job

In the model I want to launch, I have some variables which have to be initialized with specific values. I currently store these variables into numpy arrays but

How to append an array to an existing `.npz` file?

I have the following code, which generate the mat file (in .npz format): import numpy as np x = np.arange(10) np.savez('mat',x) Now I want to append another

Convert numpy array from space separated to comma separated in python

This is data in .csv format file generally we expect array/ list with [1,2,3,4] comma separated values which it seems that nothing happened in this case data =

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

Integrating 2D data with nans using numpy trapz

I have a 2D matrix U of data that looks something like this: 0 0.5 0.1 0.3 0 nan 0.4 0.1 nan nan 0.2 nan The rows index corresponds to heigh

How to add a new array to an existing npz file in a standard way?

I have a function which writes an array to a compressed *.npz file: def save_a(file): np.savez_compressed(file, a=[[1, 2, 3]]) I want to make a function

Problem with CV2 : numpy.core.multiarray failed to import

Tried to solve it with : pip install -U numpy but it still does not work. That is what the console shows to me when I try to run the application : Runt

Fitting data to numerical solution of an ode in python

I have a system of two first order ODEs, which are nonlinear, and hence difficult to solve analytically in a closed form. I want to fit the numerical solution t

conda install matplotlib results in huge list on incompatibilities

I have a conda env that I build from a requirements.yml file that I obtained from a classmate so we could work on a project together. I tried installing matplot

Concatenate 2 videos into 1 using Python

I want to write a program that monitors and tracks objects in 2 different videos using openCV in python (cv2). I would like to Merge the two videos into 1 vide

Fitting using Chebyshev polynomials in python

I am trying to fit 2d data using polynomial fit and find that after a certain degree of polynomials, numpy gives "Rank Warning". On the other hand, fitting usin

Umap import causes an exception: Numba needs NumPy 1.20 or less

I am trying to import UMAP library in my lab work, however I get an error ImportError: Numba needs NumPy 1.20 or less. Before running the code, I checked that b

Import "numpy" could not be resolved Pylance

I have wrote the following code: import matplotlib.pyplot as plt import numpy as np x = np.linspace(0, 5, 100) y = x**2 plt.plot(x, y) plt.xlabel("X-axis") plt

img is not a numpy array, neither a scalar

I try combine haar cascade code with histogram code I try this code : import cv2 import numpy as np from matplotlib import pyplot as plt #Cascade jeruk jeru

How to append a tuple to a numpy array without it being preformed element-wise?

If I try x = np.append(x, (2,3)) the tuple (2,3) does not get appended to the end of the array, rather 2 and 3 get appended individually, even if I originall

Keep bins between 5% and 95% of a histogram in OpenCV/Python

I am intending to skip some histograms of an image in the extreme points of the distribution of any gray image. The extreme points to the left are represented b

Joblib UserWarning while trying to cache results

I get the following UserWarning when trying to cache results using joblib: from tempfile import mkdtemp cachedir = mkdtemp() from joblib import Memory memory =

Opencv/numpy issue: "module compiled against API version X but this version of numpy is Y"

I'm new to the world of opencv and few days ago I tried to install it. I installed everything and moved the cv2 file from opencv to python 2.7. I tired oving bo

What is the correct way to access the columns in NumPy?

I cannot figure out the following problem: Elements that were placed at the corners of an 4X3 array are selected. The row indices of the selected items are [0