numpy Questions
3
I want to create .exe file from .py. If I run .py file it works well and I have no problem with it. But when I run .exe file created by pyinstaller I can not input(type) anything in command line.
...
Masuria asked 23/10, 2019 at 13:9
3
Solved
I wanted to display an image from a NumPy array, but I got this error:
Traceback (most recent call last):
File "E:/wittos/python/SVM/witti svm/arraytoimage.py", line 14, in <module>
imag...
Outstanding asked 29/12, 2018 at 12:18
3
Solved
I just want to get a list or dict from dtype out of a numpy array. Thought it would be a easy but it is not itterable. I looked other places but could not find answer.
jn is a recarray
[OrderedDi...
Fornof asked 14/2, 2014 at 10:42
2
Solved
I have array of size (3, 3, 19, 19), which I applied flatten to get array of size 3249.
I had to write these values to file along with some other data, so I did following to get the array in strin...
3
Solved
I'm having a bit of trouble with fitting a curve to some data, but can't work out where I am going wrong.
In the past I have done this with numpy.linalg.lstsq for exponential functions and scipy.op...
Dismiss asked 16/1, 2013 at 0:57
2
I want to save training in a different folder named Check. How can I save this using np.save command? I read about np.save command from documentation but it doesn't describe how to save it in diffe...
3
Lets say I have two arrays:
a = numpy.array([1,2,3,4,5])
b = numpy.array([10,11,12])
I wish to add these arrays together, but I wish to start at index 3 in the first array, to produce:
numpy.array...
6
Solved
I am trying to find patterns in a numpy array, called values. I'd like to return the starting index position of the pattern. I know I could iterative over each element and check whether that elemen...
Feudality asked 27/2, 2017 at 17:23
3
Lets say I have 3 Numpy arrays, A1,A2,A3, and 3 floats, c1,c2,c3
and I'd like to evaluate B = A1*c1 + A2*c2+ A3*c3.
Will Numpy compute it like the below example?
E1 = A1*c1
E2 = A2*c2
E3 = A3*c3...
Untidy asked 30/5, 2010 at 5:33
3
Solved
Is there a way to avoid using specific values when applying sum and mean in numpy?
I'd like to avoid, for instance, the -999 value when calculating the result.
In [14]: c = np.matrix([[4., 2.],[4...
2
I'm trying to import the xarray module into python 3.8.10 but I get this error:
AttributeError: module 'numpy.random' has no attribute 'BitGenerator'
In order to allow you to reproduce the error: ...
Dermatoplasty asked 8/3, 2022 at 17:27
3
Solved
I am trying to port some code from MATLAB to Python and I am getting much slower performance from Python. I am not very good at Python coding, so any advise to speed these up will be much appreciat...
Quarrel asked 27/6, 2023 at 18:41
3
ERROR: Could not find a version that satisfies the requirement scipy==1.7.1 (from versions: 0.8.0, 0.9.0, 0.10.0, 0.10.1, 0.11.0, 0.12.0, 0.12.1, 0.13.0, 0.13.1, 0.13.2, 0.13.3, 0.14.0, 0.14.1, 0.1...
3
Solved
I am working with very large (several GB) 2-dimensional square NumPy arrays. Given an input array a, for each element, I would like to find the direction of its largest adjacent neighbor. I am usin...
Priam asked 24/8 at 0:46
2
I have the following values, each of which is a scalar of type double: a1, a2, a3, a4, a5.
I tried to concatenate them using Numpy, as follows:
f = np.concatenate((a1,a2,a3,a4,a5))
I however get t...
Diversity asked 27/1, 2018 at 0:15
2
Solved
I have a 1D numpy numpy array with integers, where I want to replace zeros with the previous non-zero value if and only if the next non-zero value is the same.
For example, an array of:
in: x = n...
Euratom asked 14/1, 2018 at 16:3
14
Solved
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.ylabel("Y-axis")...
7
Solved
I am running a simple CNN using Pytorch for some audio classification on my Raspberry Pi 4 on Python 3.9.2 (64-bit). For the audio manipulation needed I am using librosa. librosa depends on the num...
7
Solved
I have an array of points in unknown dimensional space, such as:
data=numpy.array(
[[ 115, 241, 314],
[ 153, 413, 144],
[ 535, 2986, 41445]])
and I would like to find the average euclidean dista...
Phosphorite asked 5/3, 2010 at 0:3
2
I've been given the challenge to code np.argmin without numpy .
I've been thinking hard for about a day..
I have no idea whether I should use a for statement,
an if statement, a while statement, or...
2
Solved
I'm trying to simulate a simple diffusion based on Fick's 2nd law.
from pylab import *
import numpy as np
gridpoints = 128
def profile(x):
range = 2.
straggle = .1576
dose = 1
return dose/(s...
Roth asked 23/4, 2014 at 15:25
2
I am trying to enable multithreading/multiprocessing in an Anaconda installation of Numpy. My test program is the following:
import os
import numpy as np
from timeit import timeit
size = 1024
A = ...
5
Solved
Below is a python script that calculates the homography between two images and then map a desired point from one image to another
import cv2
import numpy as np
if __name__ == '__main__' :
# Re...
Depriest asked 2/7, 2020 at 11:53
1
Solve_ivp is an initial value problem solver function from Scipy.
In a few words
scipy.integrate.solve_ivp(fun, t_span, y0, method=’RK45’, t_eval=None, dense_output=False, events=None, vectorized=...
Frazier asked 18/2, 2020 at 9:48
3
Solved
I have data that has 800,000+ rows. I want to take an Exponential Moving Average (EMA) of one of the columns. The times are not evenly sampled and I want to decay the EMA on each update (row). The ...
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