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numpy - Weighted moving average in python
    I have data sampled at essentially random intervals. I would like to compute a weighted moving average using ... bin_avg) Results look good: See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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560 views
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numpy - Syntax in Python (.T)
    In the help resource for the multivariate normal sampling function in SciPy, they give the following example: x,y = np. ... in Google for ".T". See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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906 views
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numpy - Delaunay Triangulation of points from 2D surface in 3D with python?
    I have a collection of 3D points. These points are sampled at constant levels (z=0,1,...,7). An image ... Here are the slices along constant z: See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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698 views
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numpy - Is there a Python equivalent of range(n) for multidimensional ranges?
    On Python, range(3) will return [0,1,2]. Is there an equivalent for multidimensional ranges? range((3,2) ... or it's standard/common libraries. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.1k views
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numpy - Fit mixture of two gaussian/normal distributions to a histogram from one set of data, python
    I have one set of data in python. I am plotting this as a histogram, this plot shows a bimodal distribution, ... [1]) plotgauss2(histdist[1]) See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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527 views
1 answer
numpy - How do I create a radial cluster like the following code-example in Python?
    I've found several examples on how to create these exact hierarchies (at least I believe they are) like ... cluster like the following diagrams. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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540 views
1 answer
numpy - Fitting distributions, goodness of fit, p-value. Is it possible to do this with Scipy (Python)?
    INTRODUCTION: I'm a bioinformatician. In my analysis which I perform on all human genes (about 20 000) I ... Any help would be appreciated. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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807 views
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numpy - Calculate max draw down with a vectorized solution in python
    Maximum Drawdown is a common risk metric used in quantitative finance to assess the largest negative return that has ... return mdd, start, end See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.1k views
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numpy - Fast calculation of Pareto front in Python
    I have a set of points in a 3D space, from which I need to find the Pareto frontier. Speed of ... Python do better than this algorithm? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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586 views
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numpy - kalman 2d filter in python
    My input is 2d (x,y) time series of a dot moving on a screen for a tracker software. It has some noise ... couldn't find code examples. Thanks! See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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762 views
1 answer
numpy - Start, End and Duration of Maximum Drawdown in Python
    Given a time series, I want to calculate the maximum drawdown, and I also want to locate the beginning and end ... 100) print MaxDD plt.show() See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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757 views
1 answer
numpy - Plotting power spectrum in python
    I have an array with 301 values, which were gathered from a movie clip with 301 frames. This means 1 value from 1 ... like to have a plot in Hz. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.1k views
1 answer
numpy - Two-sample Kolmogorov-Smirnov Test in Python Scipy
    I can't figure out how to do a Two-sample KS test in Scipy. After reading the documentation scipy kstest I can ... do it? Thank You in Advance See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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540 views
1 answer
numpy - How can implement EM-GMM in python?
    I have implemented EM algorithm for GMM using this post GMMs and Maximum Likelihood Optimization Using NumPy ... and expected output: See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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903 views
1 answer
numpy - How to install external libraries with Portable Python?
    I can't install Python on my machine due to administrator privileges, but I did download/open Portable Python ... such as Numpy or Gmpy? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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574 views
1 answer
numpy - Python scikit-learn: Cannot clone object... as the constructor does not seem to set parameter
    I modified the BernoulliRBM class of scikit-learn to use groups of softmax visible units. In the process, I added an ... I can try here? Thanks! See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
655 views
1 answer
numpy - handling zeros in pandas DataFrames column divisions in Python
    What's the best way to handle zero denominators when dividing pandas DataFrame columns by each other in Python? ... columns and not entire df? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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664 views
1 answer
numpy - How is a Pandas crosstab different from a Pandas pivot_table?
    Both the pandas.crosstab and the Pandas pivot table seem to provide the exact same functionality. Are there any differences? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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788 views
1 answer
numpy - Fitting data using UnivariateSpline in scipy python
    I have a experimental data to which I am trying to fit a curve using UnivariateSpline function in scipy. The ... new to scipy. Thanks! See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.1k views
1 answer
numpy - Convolution along one axis only
    I have two 2-D arrays with the same first axis dimensions. In python, I would like to convolve the two matrices ... 2] Is there a fast way? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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760 views
1 answer
numpy - pcolormesh with missing values?
    I have 3 1-D ndarrays: x, y, z and the following code: import numpy as np import matplotlib.pyplot as plt ... what I am doing wrong? Thanks. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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580 views
1 answer
numpy - Python Pandas: remove entries based on the number of occurrences
    I'm trying to remove entries from a data frame which occur less than 100 times. The data frame data looks ... entries which have low count... See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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853 views
1 answer
numpy - Sort array's rows by another array in Python
    I'm trying to sort the rows of one array by the values of another. For example: import numpy as np arr1 = np. ... arr2[0, :] are the same). See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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520 views
1 answer
numpy - How to install python packages without root privileges?
    I am using numpy /?scipy / pynest to do some research computing on Mac OS X. For performance, we ... and executed without installing packages? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
742 views
1 answer
numpy - Solving non-linear equations in python
    I have 4 non-linear equations with three unknowns X, Y, and Z that I want to solve for. The equations are ... way to go about solving this? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.1k views
1 answer
numpy - How do I plot list of tuples in Python?
    I have the following data set. I would like to use Python or Gnuplot to plot the data. The tuples are of the ... ), (5, 4.1572516753310418e-09)] See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
725 views
1 answer
numpy - Convert an image RGB->Lab with python
    What is the preferred way of doing the conversion using PIL/Numpy/SciPy today? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.1k views
1 answer
numpy - How to have logarithmic bins in a Python histogram
    As far as I know the option Log=True in the histogram function only refers to the y-axis. P.hist(d,bins= ... there something that can do this? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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