How to add value for each points with style line? - linux

Question

I use this script Gnuplot :
set title "df -m command test"
set terminal png truecolor size 720,480 background rgb "#eff1f0"
set output "/xxx/xxx/xxx/test.png"
set grid
set style line 1 \
linecolor rgb '#0060ad' \
linetype 1 linewidth 2 \
pointtype 7 pointsize 1.5
set offsets 0.5,0.5,0,0.5
set datafile separator ","
set ylabel " MB BLOCK "
set xlabel " Date "
set format y "%g"
plot "/xxxx/xxx/xxx/TEST.txt" using 2:xtic(1) with linespoints linestyle 1 title "MB used"
With these data :
2019-08-28,384.00
2019-08-29,394.00
2019-08-30,354.00
2019-08-31,384.00
2019-09-01,484.00
2019-09-02,324.00
2019-09-03,384.00
To create this graph :
(source: noelshack.com)
Can you show me how I can put the value over each point ?

Answer 1

What about this? Also check help labels.
Code:
### plot with values as labels at datapoints
reset session
$Data <<EOD
2019-08-28,384.00
2019-08-29,394.00
2019-08-30,354.00
2019-08-31,384.00
2019-09-01,484.00
2019-09-02,324.00
2019-09-03,384.00
EOD
set datafile separator ","
set offsets 0.5,0.5,20,20
myLabel(n) = sprintf("%g",n)
plot $Data u 2:xtic(1) w lp pt 7 lc rgb "blue" title "MB used", \
$Data u 0:2:(myLabel($2)) w labels offset 0,1.5 notitle
### end of code
Result: