scipy

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Scipy's fmin sticks only on inf only sometimes

I\'m using Scipy\'s fmin search to compute the log of the likelihood of a distribution\'s fit to some data. I\'m using fmin to search开发者_如何学编程 for the parameters that maximize the log likeliho[详细]

2023-04-08 14:12 分类：问答
Python to Mat-file: export list of string to ordinar matrix of chars (not a cell-array!)

This code on Python creates cell \"STRINGS\" in .mat-file: data = {\"STRINGS\": numpy.empty((0),dtype=numpy.object)}[详细]

2023-04-06 05:42 分类：问答
Multilinear Regression using OLS in Python not working with my own data [duplicate]

This question already has answers here: Closed 11 years ago. Possible Duplicate: Python Multiple Linear Regression using OLS code with specific data?[详细]

2023-04-05 22:02 分类：问答
matplotlib.mlab.griddata very slow and returns array of nan when valid data is input

I am trying to map an irregularly gridded dataset (raw satellite data) with associated latitudes and longitudes to a regularly gridded set of latitudes and longitudes given by basemap.makegrid().I am[详细]

2023-04-04 18:56 分类：问答
how to sort a scipy array with order attribute when it does not have the field names?

I have a 2d scipy array(The oigion is the one color channel of an rgb image). I want to find the specific occurance of an element. I can use[详细]

2023-04-03 14:21 分类：问答
Efficient way of finding the first occurrance of a number in a 2D scipy array? [duplicate]

This question already has answers here: Is there a NumPy function to return the first index of something in an array?[详细]

2023-04-03 03:06 分类：问答
Performing a moving linear fit to 1D data in Python

I have a 1D array of data and wish to extract the spatial variation. The standard way to do this which I wish to pythonize is to perform a moving linear regression to the data and save the gradient...[详细]

2023-04-02 07:00 分类：问答
Methods for entering equations while programming in C/C++ , Python or Fortran

I am writing a code which had long mathematical equations with many trigonometric and othe开发者_运维技巧r identities. Is there a way of visualising the same expression in latex and making a C or pyth[详细]

2023-04-02 06:22 分类：问答
A way to get the count of non zero values in a coo_matrix of pythons scipy module?

I thought of using coo_matrix.nonzero() which returns a tuple of two arrays which contain the indices of the nonzero entrys in a given matrix. The example from the docs states:[详细]

2023-03-31 14:59 分类：问答
Applying the Sobel filter using scipy

I\'m trying to apply the Sobel filter on an image to detect edges using scipy. I\'m using Python 3.2 (64 bit) and scipy 0.9.0 on Windows 7 Ultimate (64 bit). Currently my code is as follows:[详细]

2023-03-31 03:16 分类：问答