Python中的Matlab'fscanf'等效项是什么? [英] What is the equivalent of Matlab 'fscanf' in Python?

问题描述

Matlab函数fscanf()似乎非常强大. python(或numpy)中是否有相同的东西?

The Matlab function fscanf() seems to be very powerful. Is there any equivalent of the same in python (or numpy)?

具体来说，我想从文件中读取矩阵，但是我不想遍历每一行以读取矩阵. 这种东西(从matlab读取2D 1000x1000矩阵):

Specifically I want to read a matrix from file but I don't want to iterate through each line to read the matrix. Something of this sort (from matlab for reading a 2D 1000x1000 matrix):

matrix = fscanf(fopen('input.txt'),'%d',[1000,1000]); 

推荐答案

Python没有内置的fscanf函数.最接近的方法是逐行读取文件并使用正则表达式.

Python has no built-in fscanf function. The closest way to do it is to read the file line by line and use regular expressions.

Numpy (类似于Matlab的Python库)具有允许读取文件的功能.并从is内容构造一个数组: numpy.fromfile (或根据其他答案的建议， numpy.loadtxt 在这种情况下可能更合适.)

Numpy (the Matlab-like Python library), however, has a function that allows to read a file and construct an array from is content : numpy.fromfile (or, as suggested in the other answers, numpy.loadtxt may be more suitable in this case).

这篇关于Python中的Matlab'fscanf'等效项是什么?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！