NumPy has built-in methods for reading and writing NumPy array data to text files. These are numpy.loadtxt and numpy.savetxt.
Writing an array to a text file is simple:
savetxt(filename,data)
There are two useful parameters given as strings, fmt and delimiter, which control the format and the delimiter between columns. The defaults are space for the delimiter and %.18e for the format, which corresponds to the exponential format with all digits. The formatting parameters are used as follows:
x = range(100) # 100 integers
savetxt('test.txt',x,delimiter=',') # use comma instead of space
savetxt('test.txt',x,fmt='%d') # integer format instead of float with eReading to an array from a text file is done with the help of the following syntax:
filename = 'test.txt' data = loadtxt(filename)
Due to the fact that each row in an array must have the same length, each row in the text file must have the same number of elements. Similar to savetxt, the default values...
