added ref to location of data pre-processing script

Census2022_CER_CEUS_paper_analysis.R

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 # Data Analysis for ESRC Transformative project paper for Computers, Environment & Urban Systems
+#
 # - Using the Commission for Energy Regulation (CER)'s Irish Smart Meter Trial data
 #   - http://www.ucd.ie/issda/data/commissionforenergyregulationcer/
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 # For the latest version of this code go to: https://github.com/dataknut/Census2022
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+# Uses CER data pre-processed using:
+# https://github.com/dataknut/CER/blob/master/CER-data-processing-electricity.R
+#
 # This work was funded by RCUK through the ESRC's Transformative Social Science Programme via the
 # "Census 2022: Transforming Small Area Socio-Economic Indicators through 'Big Data'" Project 
 # - http://gtr.rcuk.ac.uk/project/2D2CD798-4F04-4399-B1AF-D810A233DD21
 # - http://www.energy.soton.ac.uk/tag/census2022/
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+#
 # Copyright (C) 2014-2016  University of Southampton
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 # Authors: Ben Anderson (b.anderson@soton.ac.uk, @dataknut), Sharon Lin (X.Lin@soton.ac.uk) 
 #  [Energy & Climate Change, Faculty of Engineering & Environment, University of Southampton]
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+#
 # 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 2 of the License 
 # (http://choosealicense.com/licenses/gpl-2.0/), or (at your option) any later version.
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+#
 # 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 or the LICENSE file in this repository for more details.
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+#
 # YMMV - http://en.wiktionary.org/wiki/YMMV
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+#
 ###########################################
 # Housekeeping ----
 # clear out all old objects etc to avoid confusion