# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'timedat.1.png'
set bar 1.000000 front
set xdata time
set style circle radius graph 0.02, first 0.00000, 0.00000 
set style ellipse size graph 0.05, 0.03, first 0.00000 angle 0 units xy
set format x "%d/%m\n%H:%M" timedate
set timefmt "%d/%m/%y	%H%M"
set grid nopolar
set grid xtics nomxtics ytics nomytics noztics nomztics \
 nox2tics nomx2tics noy2tics nomy2tics nocbtics nomcbtics
set grid layerdefault   lt black linewidth 0.200 dashtype solid,  lt black linewidth 0.200 dashtype solid
set key inside left top vertical Right noreverse enhanced autotitle nobox
set style textbox transparent margins  1.0,  1.0 border
unset logscale
set style data fsteps
unset paxis 1 tics
unset paxis 2 tics
unset paxis 3 tics
unset paxis 4 tics
unset paxis 5 tics
unset paxis 6 tics
unset paxis 7 tics
set title "Fsteps plot\nwith date and time as x-values" 
set xlabel "Date\nTime" 
set xrange [ "01/06/93\t0000" : "01/11/93\t0000" ] noreverse nowriteback
set ylabel "Concentration\nmg/l" 
set yrange [ 0.00000 : * ] noreverse nowriteback
set paxis 1 range [ * : * ] noreverse nowriteback
set paxis 2 range [ * : * ] noreverse nowriteback
set paxis 3 range [ * : * ] noreverse nowriteback
set paxis 4 range [ * : * ] noreverse nowriteback
set paxis 5 range [ * : * ] noreverse nowriteback
set paxis 6 range [ * : * ] noreverse nowriteback
set paxis 7 range [ * : * ] noreverse nowriteback
set colorbox vertical origin screen 0.9, 0.2, 0 size screen 0.05, 0.6, 0 front  noinvert bdefault
x = 0.0
## Last datafile plotted: "timedat.dat"
plot 'timedat.dat' using 1:3 t '',      'timedat.dat' using 1:3 t 'Total P' with points,      'timedat.dat' using 1:4 t '',      'timedat.dat' using 1:4 t 'PO4' with points