File:Logarithmicpmf.svg

Drawn in en:gnuplot version 4.2.5. gnuplot code:

f(k,p) = -1.0/log(1-p) * p**k / k
set terminal svg enhanced  size 1300 975  linewidth 5 font "Times,36" 
set output "logarithmicpmf.svg"
set samples 6
set key top right

plot [0:5] [0:1] \
    f(x,0.33) with linespoints pt 5 title "p = 0.33", \
    f(x,0.66) with linespoints pt 7 title "p = 0.66", \
    f(x,0.99) with linespoints pt 9 title "p = 0.99"