removing rfc_hist since not required anymore

wetb/fatigue_tools/rainflowcounting/rfc_hist.py

-from __future__ import division
-from __future__ import unicode_literals
-from __future__ import print_function
-from __future__ import absolute_import
-from future import standard_library
-standard_library.install_aliases()
-import numpy as np
-def rfc_hist(sig_rf, nrbins=46):
-    """Histogram of rainflow counted cycles
-
-    hist, bin_edges, bin_avg = rfc_hist(sig, nrbins=46)
-
-    Divide the rainflow counted cycles of a signal into equally spaced bins.
-
-    Created on Wed Feb 16 16:53:18 2011
-    @author: David Verelst
-    Modified 10.10.2011 by Mads M Pedersen to elimintate __copy__ and __eq__
-
-    Parameters
-    ----------
-    sig_rf : array-like
-        As output by rfc_astm or rainflow
-
-    nrbins : int, optional
-        Divide the rainflow counted amplitudes in a number of equally spaced
-        bins.
-
-    Returns
-    -------
-    hist : array-like
-        Counted rainflow cycles per bin, has nrbins elements
-
-    bin_edges : array-like
-        Edges of the bins, has nrbins+1 elements.
-
-    bin_avg : array-like
-        Average rainflow cycle amplitude per bin, has nrbins elements.
-    """
-
-    rf_half = sig_rf
-
-    # the Matlab approach is to divide into 46 bins
-    bin_edges = np.linspace(0, 1, num=nrbins + 1) * rf_half.max()
-    hist = np.histogram(rf_half, bins=bin_edges)[0]
-    # calculate the average per bin
-    hist_sum = np.histogram(rf_half, weights=rf_half, bins=bin_edges)[0]
-    # replace zeros with one, to avoid 0/0
-    hist_ = hist.copy()
-    hist_[(hist == 0).nonzero()] = 1.0
-    # since the sum is also 0, the avg remains zero for those whos hist is zero
-    bin_avg = hist_sum / hist_
-
-    return hist, bin_edges, bin_avg