http://t3x.org/klong-stat/f03.kg.html (light|dark)
.l("config.kg")
Data set X::(!30),'err(20;20;0.5*!30)), cached
X::[10.0 7.65 8.24 10.0 10.59 15.88 10.59 5.29
15.88 12.94 11.76 10.0 12.35 5.29 4.71 11.76
0.59 12.94 14.12 17.65 6.47 6.47 8.82 12.94
8.82 10.0 10.0 4.71 5.88 7.06]
grid(0,(#X),2;[0 20 2])
Plot mean of X
m::mu(X);plot({x;m})
Change line style to 1 (dashed)
setline(1)
Plot standard deviation as distance from mean
s::sd(X);plot({x;m+s});plot({x;m-s})
Reset line style and scatter-plot X
setline(0) scplot(X) draw()