title: Iterating Over fixed sections of Arrays
body: <p>Good afternoon,
      May I please get advice on how to proceed with a section of Python code that I have? I have an array that is 1000 columns wide, and I wish to apply .h5 files to each section. For example:</p>
  
  <pre><code>data_len=list(range(100,1100,300)) 
  score_set = np.zeros((len(data_len),2))
  ind = 0
  for end_pt in data_len:
  
  # ITERATE OVER .H5 FILES
  directory = r'/media/Thesis_Maps/test_runs_2/h5_files'
  
  for file in os.listdir(directory): #setup for loop to read each .h5 file
      filename=os.fsdecode(file)
      if filename.endswith('.h5'):
          fpath=os.path.join(directory,filename)
          model = load_model(fpath)
          #model.summary()
          X_run = X.iloc[:,0:end_pt]
          y_run = y.iloc[:,0:end_pt] 
  </code></pre>
  
  <p>I was hoping to break the 1000 rows into 4 groups of 100, 300, 300 and 300. However, I think this is not doing that, it is instead creating groups of 100, 400, 700 and 1000, which is incorrect. The question is, how do I break up a 1000 column-wide row into 100, 300, 300 and 300 data points, applying a unique .h5 file to each? Any advice would be awesome, thank you.</p>