Update Forward Sampling Workshop Slides (#1895)

* Update Forward Sampling Workshop Slides

* Updated ARMA workshop slides and add plotting script

* Address comments

doc/workshop/ARMA/inputs/plot_synth.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+# Copyright 2017 Battelle Energy Alliance, LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+Simple plotting script to create visualizations of ARMA workshop material
+"""
+import sys
+import os
+import matplotlib.pyplot as plt
+import pandas as pd
+
+def main():
+    try:
+        synthFilepath = os.path.abspath(sys.argv[1])
+        realFilepath = os.path.abspath(os.path.join(os.path.dirname(synthFilepath), "dataSet_0.csv"))
+    except IndexError:
+        print("ERROR: Filepath to synthetic data not provided")
+
+
+    synth = pd.read_csv(synthFilepath)
+    real = pd.read_csv(realFilepath)
+
+    fig, ax = plt.subplots()
+    ax.plot(synth.iloc[:, 0], synth.iloc[:, 1], color="goldenrod", label='Synthetic Signal')
+    ax.plot(real.iloc[:, 0], real.iloc[:, 1], label='Original Signal')
+    ax.set_xlabel('Time')
+    ax.set_ylabel('Value')
+    ax.legend()
+
+    outputFilepath = os.path.join(os.path.dirname(real_fp), "results.png")
+    plt.savefig(outputFilepath)
+
+
+if __name__ == '__main__':
+    main()