gopen is used to open a graphic file.
rows=1 - number of plot rows on the page
columns=1 - number of plot columns on the page
user_plot=1 - internal plot variable - do not use.
file=’python’ - default file name
orientation=’landscape’ - orientation - also takes ‘portrait’
figsize=[11.7, 8.3] - figure size in inches
left=0.12 - left margin in normalised coordinates
right=0.92 - right margin in normalised coordinates
top=0.92 - top margin in normalised coordinates
bottom=0.08 - bottom margin in normalised coordinates
wspace=0.2 - width reserved for blank space between subplots
hspace=0.2 - height reserved for white space between subplots
dpi=None - resolution in dots per inch
user_position=False - set to True to supply plot position via gpos
xmin, xmax, ymin, ymax values