numpy
Lucas Kanade Optical Flow, Direction Vector
I am working on optical flow, and based on the lecture notes here and some samples on the Internet, I wrote this Python code.[详细]
2023-04-09 08:35 分类：问答stretch, scale, or double up an array with numpy?
I was wondering if there is a numpy function to \"stretch\" an array along a specific axis like the f开发者_开发技巧ollowing:[详细]
2023-04-09 05:48 分类：问答generate a patterned numpy matrix
Is it possible to generate a nump开发者_运维问答y matrix with a circular pattern of \"1\"s in a rest matrix of \"0\"s? So basically a[详细]
2023-04-09 02:44 分类：问答Benchmarking (python vs. c++ using BLAS) and (numpy)
I would like to write a program that makes extensive use of BLAS and LAPACK linear algebra functionalities. Since performance is an issue I did some benchmarking and would like know, if the approach I[详细]
2023-04-09 01:48 分类：问答Assigning issue with numpy structured arrays
I was trying this simpl开发者_StackOverflow中文版e line of assigning codes to a structured array in numpy, I am not quiet sure, but something wrong happens when I assign a matrix to a sub_array in a s[详细]
2023-04-09 01:24 分类：问答invalid types ‘float[int]’ for array subscript error and passing variables to scipy.weave.inline
I\'ve been playing with Scipy\'s inline tool (via weave) for fun, but I\'m running into some trouble. My C is rusty and I have a feeling that I\'m missing something simple.[详细]
2023-04-08 21:16 分类：问答Python: Type error when drawing contour plot
despite using the search function I\'ve been unable to find an answer. I got two assumptions, but don\'t know in how far they may apply. Now the problem:[详细]
2023-04-08 16:53 分类：问答error in matplotlib library in python while using csv2rec
I am working in Ipython, trying to开发者_运维技巧 load a csv file. from matplotlib import * data=matplotlib.mlab.csv2rec(\'helix.csv\',delimiter=\'\\t\')[详细]
2023-04-08 13:06 分类：问答Altering numpy function output array in place
I\'m trying to write a function that performs a mathematical operation on an array and returns t开发者_JAVA技巧he result. A simplified example could be:[详细]
2023-04-08 11:25 分类：问答Installing NumPy
I have Windows Vista and am开发者_JAVA技巧 running Python 2.7. I am having trouble installing some Python libraries including, NumPy, SciPy, and pygame. I am currently trying to copy the NumPy file st[详细]
2023-04-08 02:05 分类：问答
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