Python loadtxt function is not working -


i attempting following program.

from numpy import zeros,loadtxt pylab import plot,xlim,show cmath import exp,pi  def dft(y):     n = len(y)     c = zeros(n//2+1,complex)     k in range(n//2+1):         n in range(n):             c[k] += y[n]*exp(-2j*pi*k*n/n)     return c  y = loadtxt("pitch.txt",float) c = dft(y) plot(abs(c)) xlim(0,500) show()

however, when attempt run program, receive error code line 13:

 y = loadtxt("pitch.txt",float)   file "c:\python32\lib\site-packages\numpy\lib\npyio.py", line 689, in loadtxt     fh = iter(open(fname, 'u')) ioerror: [errno 2] no such file or directory: 'pitch.txt'

i given file has resources needed run program, , uploaded them same folders have python program saved in. pitch.txt file text file single column of numbers. i'm wondering if there wrong written program, or did upload files in wrong.


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