BigSubplot

subplot with controlable margins and a more intuitive arguments for sub-image positions

bigsubplot(rows,cols,rr,cc,[hgap],[vgap])

create subplots bigger than standard

input:
- rows: number of rows in desired subplot
- cols: number of columns in desired subplot
- rr: row position of next image to be plotted
- cc: col position of next image to be plotted
- hgap: horizontal margin (in %?) [optional: default = 0.06]
- vgap: vertical margin (in %?) [optional: default = hgap]