# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'imageNaN.6.png'
set border 3 front lt black linewidth 1.000 dashtype solid
unset key
set view map scale 1
set datafile missing '?'
set style data lines
unset xtics
set ytics border in scale 0,0 nomirror norotate  autojustify
set ytics  norangelimit 
set ytics   ("0" 0.00000, "?" 1.00000, "Junk" 2.00000, "NaN" 3.00000, "Inf" 4.00000, "-Inf" 5.00000)
set ztics border in scale 0,0 nomirror norotate  autojustify
set cbtics border in scale 0,0 nomirror norotate  autojustify
set cbtics  norangelimit 0.00000,1 ,5.00000
set rtics border in scale 0,0 nomirror norotate  autojustify
set title "3D image with pixel value in 4th column" 
set xlabel "First column contains various odd values" 
set xrange [ -0.500000 : 4.50000 ] noreverse nowriteback
set x2range [ * : * ] noreverse writeback
set yrange [ -0.500000 : 5.50000 ] noreverse nowriteback
set y2range [ * : * ] noreverse writeback
set zrange [ * : * ] noreverse writeback
set cblabel "Score" 
set cbrange [ -2.00000 : 7.00000 ] noreverse nowriteback
set rrange [ * : * ] noreverse writeback
set colorbox vertical origin screen 0.9, 0.2 size screen 0.05, 0.6 front  noinvert bdefault
NO_ANIMATION = 1
## Last datafile plotted: "$matrixdata"
splot $matrixdata matrix using 1:2:(0):3 with image