title: Python NAN NAN NAN NAN NAN when I read a .dat file
body: <p>Ok, im new to Python, I have a .dat file that I want to read, I need to miss the header and it is of the type:</p>
  
  <pre><code>header blah blah blah blah blah 10e20 2e46 blah blah blah
  10.0    0.0
  10.1    0.0
  10.2    0.0
  10.3    0.0
  10.4    0.0
  10.5    0.0
  </code></pre>
  
  <p>the numbers on the left are seperated by a tab space</p>
  
  <p>my code thusfar is </p>
  
  <pre><code>import matplotlib.pyplot as pyplot
  import math
  import csv
  import numpy
  import numpy as np
  
  data = np.genfromtxt("file.dat", skip_header=1, delimiter=',')
  
  print data
  </code></pre>
  
  <p>This is the first part of the assignment and i cant even read the file and print the data?? the code worked for other files, but not this one, all i get at the output is </p>
  
  <p>[ nan  nan  nan ...,  nan  nan  nan]</p>
  
  <p>any help would be appreciated</p>