JGraph.sh

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#!/bin/zsh
#
# \author mdejong
#
version=1.0
script=${0##*/}

# ------------------------------------------------------------------------------------------
#
#                         Utility script to test JGraph, JFit and JPlot1D.
#
# ------------------------------------------------------------------------------------------


if [ -z $JPP_DIR ]; then
    echo "Variable JPP_DIR undefined."
    exit
fi


source $JPP_DIR/setenv.sh $JPP_DIR


set_variable     DEBUG        2
set_variable     WORKDIR      /tmp/

if ( do_usage $* ); then
    usage "$script [working directory]"
fi

case $# in
    1) WORKDIR=$1;;
esac


set_variable GRAPH_TXT   graph.txt
set_variable GRAPH_ROOT  graph.root


cat > $WORKDIR/$GRAPH_TXT<<EOF
0.0  1.0e-0   0.1e-0
1.0  1.0e-2   0.1e-2
2.0  1.0e-4   0.1e-4
3.0  1.0e-6   0.1e-6
4.0  1.0e-8   0.1e-8
5.0  1.0e-10  0.1e-10
6.0  1.0e-12  0.1e-12
7.0  1.0e-14  0.1e-14
EOF


echo "Data points:"
cat $WORKDIR/$GRAPH_TXT


JGraph \
    -f $WORKDIR/$GRAPH_TXT                  \
    -o $WORKDIR/$GRAPH_ROOT              


JFit \
    -f $WORKDIR/${GRAPH_ROOT}:${GRAPH_TXT}  \
    -o $WORKDIR/fit.root                    \
    -F "[0] * pow(10,[1]*x)"                \
    -@ "p0=1; p1=-2;"


JPlot1D \
    -f $WORKDIR/fit.root:${GRAPH_TXT}       \
    -y "1e-14 1.0" -Y                       

JPlot1D \
    -f $WORKDIR/fit.root:${GRAPH_TXT}       \
    -y "1e-14 1.0" -Y                       \
    -XX                                     \
    -G XY