# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'zerror.1.png'
set border 127 front lt black linewidth 1.000 dashtype solid
set grid nopolar
set grid xtics nomxtics ytics nomytics ztics nomztics nortics nomrtics \
 nox2tics nomx2tics noy2tics nomy2tics nocbtics nomcbtics
set grid vertical layerdefault   linecolor rgb "grey"  linewidth 0.750 dashtype solid,  linecolor rgb "grey"  linewidth 0.750 dashtype solid
set key at screen 0.9, 0.8 right top vertical Right noreverse enhanced autotitle box lt black linewidth 1.000 dashtype solid
set key noinvert samplen 4 spacing 1 width 0 height 1
set key opaque
set style data lines
set xyplane at 1
set xtics border in scale 1,0.5 mirror norotate  offset character 0, -0.5, 0 autojustify
set ytics border in scale 1,0.5 mirror norotate  offset character -0.5, -0.5, 0 autojustify
set ztics  norangelimit logscale autofreq 
set title "splot with zerrorfill\n(note that plot ordering must be back-to-front)" 
set yrange [ 0.500000 : 5.50000 ] noreverse
set zrange [ 1.00000 : * ] noreverse
set logscale z 10
NO_ANIMATION = 1
## Last datafile plotted: "silver.dat"
splot for [k=5:1:-1] 'silver.dat' using 1:(k):2:3 with zerror lt black fc lt k title "k = ".k