使用numpy.loadtxt，如何将.txt文件中的字符串转换为整数值/浮点数？

Question

So, I have a .txt file that I want to read into Pylab. The problem is that, when I try to do so using the numpy.loadtxt("filename.txt") , Pylab cannot read the numbers in the array in my file as float values (it returns the error: cannot convert string to float .).

I am not sure if there is something wrong with my syntax as above; when I remove the quotation marks inside the parentheses, numpy.loadtxt(filename.txt) , Pylab returns the error: filename is not defined.

Any suggestions on how to read a series of numbers saved in a .txt file into Pylab as an array of floats?

Answer 1

You need to provide sample lines in your filename.txt file. I guess you may need to read the doc for numpy.loadtxt here . There are some good examples on the document page.

BTW, the second command numpy.loadtxt(filename.txt) is wrong since you have not defined a variable filename .