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This deceptively simple chart was drawn to illustrate the shape of the Logistic Distribution.
It is important for this kind of chart that the finished graphic accurately preserves the proportions of the original, so that circles stay circular, however you display or print them (see
Circle for another example). Rain takes great care to ensure you have detailed control over the plotting space. Note the use of the Symbol font to get the Greek gamma character as a note.
In this case, I wanted a narrow plot to fit down the side of a printed page (note that when you export a plot as a .EPS file, Rain adds BoundingBox information so that your DTP software will get the shape right) and I did not need margins above or to the right.
RASL91;PACK;FIT © VECTOR ASL example PACK6+0.1×¼120 FIT100×÷1+*(12-PACK)÷1.31 ch.New 0 0 210 324 ª ch.Set('Colour' 'neutral')('Nibs' 'broad') ch.Set('Style' 'Nomark')('Vmar' 48 0)('Hmar' 24 0) ch.Set'Hstyle' 'right' ch.Set('Xstyle' 'plain')('Xcap' 'z') ch.Set('Ytick' 50 100)('Ycap' 'Optical Density y')('Ylab' '0,0.5v,v') ch.Set('Cfont' 'TI,14')('Nfont' 'SY,14')('Lfont' 'TI,14') ch.Set('Xdatum' 60)('Ydatum' 50 100) ch.Plot FIT ch.Note'-g'(56 ¯4) PGch.Close R'View PG © to see it'