diff --git a/examples/show_resmap.py b/examples/show_resmap.py
deleted file mode 100755
index bda8907..0000000
--- a/examples/show_resmap.py
+++ /dev/null
@@ -1,152 +0,0 @@
-#! /usr/bin/env python
-# ==========================================================================
-# Shows histogram of residual map
-#
-# Copyright (C) 2018 Juergen Knoedlseder
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-# ==========================================================================
-import sys
-import gammalib
-import cscripts
-try:
-    import matplotlib.pyplot as plt
-    import matplotlib.mlab as mlab
-    plt.figure()
-    plt.close()
-except (ImportError, RuntimeError):
-    print('This script needs the "matplotlib" module')
-    sys.exit()
-
-
-# ============ #
-# Create array #
-# ============ #
-def create_array(map,step_nx=10,step_ny=10,step_neng=1):
-    """
-    """
-    # Initialise array of values
-    values = []
-
-    # Loop over sky map
-    for ix in range(0,map.nx(),step_nx):
-        for iy in range(0,map.ny(),step_ny):
-            for ieng in range(0,map.nmaps(),step_neng):
-
-                # Initialise value
-                value = 0.0
-
-                # Loop over sub block
-                for ix_sub in range(step_nx):
-                    ix_abs = ix + ix_sub
-                    if ix_abs < map.nx():
-                        for iy_sub in range(step_ny):
-                            iy_abs = iy + iy_sub
-                            if iy_abs < map.ny():
-                                inx = ix_abs + iy_abs*map.nx()
-                                for ieng_sub in range(step_neng):
-                                    ieng_abs = ieng + ieng_sub
-                                    if ieng_abs < map.nmaps():
-                                        value += map(inx,ieng_abs)
-
-                # If value differs from zero than append it
-                if value != 0.0:
-                    values.append(value)
-
-    # Return values
-    return values
-
-
-# ================= #
-# Plot residual map #
-# ================= #
-def plot_resmap(filename, nbins, plotfile):
-    """
-    Plot pull histogram
-
-    Parameters
-    ----------
-    filename : str
-        Residual map filename
-    nbins : int
-        Number of hisogram bins
-    plotfile : str
-        Plot filename
-    """
-    # Open residual map
-    map = gammalib.GSkyMap(filename)
-
-    # Create array of values
-    values = create_array(map)
-
-    # Create histogram
-    _, bins, _ = plt.hist(values, nbins, range=[-4.0,4.0],
-                          normed=True, facecolor='green')
-
-    # Create expected distribution
-    y = mlab.normpdf(bins, 0.0, 1.0)
-    plt.plot(bins, y, 'r-', linewidth=2)
-
-    # Set plot
-    plt.xlabel('Pull')
-    plt.ylabel('Arbitrary units')
-    #plt.title(parname)
-    plt.grid(True)
-
-    # Show figure
-    if len(plotfile) > 0:
-        plt.savefig(plotfile)
-    else:
-        plt.show()
-
-    # Return
-    return
-
-
-# ================= #
-# Show residual map #
-# ================= #
-def show_resmap():
-    """
-    Show residual map
-    """
-    # Set usage string
-    usage = 'show_resmap.py [-n bins] [-p plotfile] file'
-
-    # Set default options
-    options = [{'option': '-n', 'value': '50'},
-               {'option': '-p', 'value': ''}]
-
-    # Get arguments and options from command line arguments
-    args, options = cscripts.ioutils.get_args_options(options, usage)
-
-    # Extract script parameters from options
-    nbins    = int(options[0]['value'])
-    plotfile = options[1]['value']
-
-    # Plot residual map
-    plot_resmap(args[0], nbins, plotfile)
-
-    # Return
-    return
-
-
-# ======================== #
-# Main routine entry point #
-# ======================== #
-if __name__ == '__main__':
-
-    # Show residual map
-    show_resmap()