def graph(name, p, Width=110, Height=50, BarWidthPx=2, BarSpacePx=1):
try:
XScale = BarWidthPx + BarSpacePx
# p is [(year,fcnt)]
Width *= XScale
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, Width, Height)
cr = cairo.Context(surface)
cr.set_source_rgba(0,0,0,1)
cr.select_font_face('Verdana')
cr.set_font_size(8.0)
cnts = [cnt for year,cnt in p]
mi = stats.meani(cnts)
mval = cnts[mi]
sd = stats.stddev(cnts)
(mloi,mhii),pct = stats.range_size(cnts, 30)
# graph individual years
for i,(year,fcnt) in enumerate(p):
cr.set_source_rgba(0,0,0,.3)
x = (year - 1900) * XScale
h = max(1, fcnt / 1000)
if i >= mloi and i <= mhii:
cr.set_source_rgba(0,0,0,1)
if i == mi:
cr.set_source_rgba(1,0,0,1)
# XXX: not sure about the indentation of these...
w, = cr.text_extents(str(year))[2:3]
cr.move_to(max(0, x-w/2.), Height)
cr.show_text(str(year))
cr.stroke()
cr.rectangle(x, Height-h-7, BarWidthPx, h)
cr.fill()
cr.stroke()
# graph 80%
cr.set_source_rgba(1,0,0,0.6)
mloi,mhii = stats.range_pct(cnts, 0.80)
pctrng = mhii - mloi
cr.rectangle(mloi * XScale, Height-7, pctrng * XScale, 1)
cr.fill()
cr.stroke()
# write file
surface.write_to_png('name-dob-chart/' + name + '.png')
surface.finish()
return (pct, pctrng)
except:
sys.stderr.write("Unexpected error:%s\n" % (sys.exc_info()[0]))
raise
return (0,0)
def birthspan_pct(conn, name, pct=80, cc='US'):
birthcnt = name_birth_totals(conn, name, cc)
cnts = [cnt for year, cnt in birthcnt]
ylo, yhi = stats.range_pct(cnts, pct / 100.)
return (ylo + 1900, yhi + 1900)
def birthspan_pct(conn, name, pct=80, cc='US'):
birthcnt = name_birth_totals(conn, name, cc)
cnts = [cnt for year,cnt in birthcnt]
ylo,yhi = stats.range_pct(cnts, pct / 100.)
return (ylo+1900, yhi+1900)
