#!/bin/bash

# Paste sum of results for each variable P_i into single output

## [ https://stackoverflow.com/questions/20163225/paste-files-from-list-of-paths-into-single-output-file ]
#

n="$1"                          # number of measures P_i, input
MEASUREBASE="P_"                # measure P_ with index i
CSVFILE="$2"                    # results file, input

for i in $(seq 1 $n); do
    LIST="${LIST} ${MEASUREBASE}${i} ${CSVFILE}"
done

touch buffer.txt; 
echo "${LIST}" | xargs -n2 bash -c 'paste buffer.txt <(./bin/data.awk "$@") > output.txt; mv output.txt buffer.txt' FILLER; # Name,Start Time,Mean,Confidence Interval,Name,Start Time,Mean,Confidence Interval,...
mv buffer.txt output.txt
rm -f buffer.txt
cat output.txt | awk -v j=3 -v k=4 -v nn="$n" '{sum=0; for(i=0; i<nn; i++) sum+=$(i*k+j); printf"%s %s %s\n",$1,$2,sum}' # Name,Start Time,sum of Mean
rm -f output.txt