In this example dobands=True
# curves plot with error bars; irregular X axis stubs; data point tooltips
# option: dobands .... if True show shaded SEM bands also
import svgdatashapes as s
def example6( dobands=False ):
# assign some data column names...
cols=['time','group1','group1sem','group2','group2sem','group3','group3sem']
dataset = [ [ 0, 33, 2.4, 49, 4.3, 75, 5.8 ],
[ 3, 35, 3.1, 44, 3.9, 70, 6.1 ],
[ 6, 30, 2.8, 51, 3.2, 67, 4.0 ],
[ 12, 34, 3.7, 58, 3.8, 66, 3.9 ],
[ 24, 27, 5.0, 75, 6.2, 63, 8.2 ] ]
# define our xstubs this way because they are irregularly spaced
xstubs = [ [ 0, '0' ], [ 3, '3'], [ 6, '6' ], [ 12, '12' ], [ 24, '24' ] ]
textstyle = 'font-family: sans-serif; font-weight: bold;'
s.settext( ptsize=12, color='#777', style=textstyle )
s.setline( color='#aaa' )
# begin building our svg...
s.svgbegin( width=550, height=450 )
# set up the X and Y space
s.xspace( svgrange=(100,500), datarange=(0,26) )
s.yspace( svgrange=(100,400), datarange=(0.0,100.0) )
# render X and Y axes...
s.xaxis( axisline=False, stublist=xstubs, loc='bottom-10' )
s.yaxis( axisline=False, grid=True, loc='left-20' )
s.plotdeco( xlabel='Months of follow up', xlabeladj=(-20,-10),
ylabel='O2 exchange ratio [%]', ylabeladj=(-20,0) )
# render the curves
for group in ['group1', 'group2', 'group3']:
# get array index positions for the columns we're working with....
xcol = cols.index( 'time' )
ycol = cols.index( group )
semcol = cols.index( group + 'sem' )
# color...
if group == 'group1': linecolor = '#8d8'; bandcolor='#cfc'
elif group == 'group2': linecolor = '#88d'; bandcolor='#ccf'
elif group == 'group3': linecolor = '#d88'; bandcolor='#fcc'
# shaded bands option
if dobands == True:
s.curvebegin( band=True, fill=bandcolor, opacity=0.5 )
for row in dataset:
s.curvenext( x=row[xcol], y=row[ycol]+row[semcol], y2=row[ycol]-row[semcol] )
# initialize line style and register a legend item...
s.setline( color=linecolor, width=4 )
s.legenditem( label=group, sample='line', width=100 )
# render the curves, error bars, and data points
s.curvebegin()
for row in dataset:
s.setline( width=4 )
s.curvenext( x=row[xcol], y=row[ycol] )
s.setline( width=2 )
s.errorbar( x=row[xcol], y=row[ycol], erramt=row[semcol] )
for row in dataset:
s.tooltip( str(row[ycol])+' %' )
s.datapoint( x=row[xcol], y=row[ycol], color=linecolor, diameter=12, opacity=0.5 ) # do datapoints last
# display the legend...
s.legendrender( location='top', format='across' )
# return the svg. The caller could then add it in to the rendered HTML.
return s.svgresult()