[Gnuplot-info] kdensity plot not filled with filledcurves y=0

[Grothausmann, R. Dr. <gro...@mh...>]

Dear mailing list members,


When plotting data with kernel-densities with filled-curves I can't find a way 
to make the filling reach down to y=0 (using gnuplot-5.0.3). This is especially 
visible if the x-range "crops" the kdensity plot before it gets close to y=0. 
However plotting x**2-2 has no problems to "pull down" the filling to any y=a.
For example the script below does not fill the plot. When removing "=0" it gets 
filled but for a kdensity plot looks odd as the filling does not go down to y=0.
Even with any other y=a for a>0 there is no filling, e.g. y=0.01:

if (GPVAL_VERSION < 5.0) {print "This script needs gnuplot-5.x\n"; exit;}

bin=17
sigma=3
col=1

set samples 1000
set boxwidth bin
bin (x,s)= s* int(x/s)

STATS_records=7
plot [0:180][-0.01:0.1] "-" u col:(1. / STATS_records) smooth kdensity bandwidth 
sigma with filledcurves y=0
10
11
30
35
180
180
180
e


Any help or hints are very much appreciated
Roman