Anyone can plot graphs! One of the great strengths of Rain is its ability to combine several plots on the same finished graphs – see SmallMultiple for this idea taken to its logical conclusion.

This example is in the Rain workspace as Sambars – please take the code apart to see how it was done in detail.

 R„Sambars;MAT 
© Build set of 4 sample barcharts from MAT 
 MAT„?5 3½36 
© ============== GROUPED BARCHART ============= 
 ch.New 0 154 205 308 
 ch.Set('HMAR' 24)('HEAD' 'Here is a Simple Grouped Barchart;with a Displaced X-Axis') 
 ch.Set('XLAB' 'York,Hfx,Nch,Ltr,Gls')('Hf' '8')('Yint' 20) 
 ch.Bar MAT 
© ============== STACKED BARCHART ============= 
 ch.New 0 0 205 154 
 ch.Set('STYLE' 'RELATIVE,CBAR,VALUES')('HMAR' 24)('HEAD' 'This is a Simple Stacked Barchart')('Hf' '8') 
© Angled X-labels at 25deg allow longer names (version 4.4)
 ch.Set('XLAB' 'York,Halifax,Norwich,Leicester,Glasgow')
 ch.Set('XS' 'Angled')('XA' 25)
 ch.Bar MAT 
© ============== FLOATING BARCHART ============= 
 ch.New 205 154 411 308 
 ch.Set('STYLE' 'RELATIVE,FBAR,VALUES')('HMAR' 24)('HEAD' 'Here is a Floating Barchart;with Value Labels on the Bars') 
 ch.Set('Values' 'York,Hfx,Nch,Ltr,Gls') 
 ch.Set('YSTYLE' 'GRID,MTICK')('Hfont' '8') 
 ch.Bar MAT 
© ==== OVERLAPPED BARCHART WITH DATUM ==== 
 ch.New 205 0 411 154 
 ch.Set('STYLE' 'RELATIVE')('HMAR' 24)('HEAD' 'A Relative Barchart with overlapped bars;and Displaced Baseline') 
 ch.Set('XLAB' 'York,Hfx,Nch,Ltr,Gls')('GAP' ¯0.5) 
 ch.Set('BASELINE' 20)('Hfont' '8') 
 ch.Bar MAT 
 PG„ch.Close 
 R„'View PG © to see it'

Some things which you might like to note are:

All measurements are in points (one point = 1/72 inch), and the default page size is 432 wide by 324 high. Astute (non-metric) readers will notice that this translates to 6” by 4.5”, and gives a proportion of exactly 4 wide by 3 high. If you simply want to divide the plotting space into for equal sections, you can ask APL to do the sums ...

 ch.New 0 0 .5 .5×4½432 324      © lower left 
 ch.New .5 .5 1 1×4½432 324      © top right

... and so on.