Python coord_trans示例

示例#1

文件： graphics.py 项目： realmichaelzyy/cs249-2

              type="cairo")
#-- ggplot2mtcarscoordtrans-begin
from rpy2.robjects.lib import grid
grid.newpage()
grid.viewport(layout=grid.layout(2, 3)).push()

diamonds = ggplot2.ggplot2.__rdata__.fetch('diamonds')['diamonds']
gp = ggplot2.ggplot(diamonds)

for col_i, trans in enumerate(("identity", "log2", "sqrt")):
    # fetch viewport at position col_i+1 on the first row
    vp = grid.viewport(**{'layout.pos.col': col_i + 1, 'layout.pos.row': 1})
    pp = gp + \
        ggplot2.aes_string(x='carat', y='price') + \
        ggplot2.geom_point(alpha = 0.1, size = 1) + \
        ggplot2.coord_trans(x = trans, y = trans) + \
        ggplot2.ggtitle("%s on axis" % trans)
    # plot into the viewport
    pp.plot(vp=vp)

    # fetch viewport at position col_i+1 on the second row
    vp = grid.viewport(**{'layout.pos.col': col_i + 1, 'layout.pos.row': 2})
    pp = gp + \
        ggplot2.aes_string(x='%s(carat)' % trans, y='%s(price)' % trans) + \
        ggplot2.geom_point(alpha = 0.1, size = 1) + \
        ggplot2.ggtitle("%s(<variable>)" % trans)
    pp.plot(vp=vp)

#-- ggplot2mtcarscoordtrans-end

#-- ggplot2mtcarscoordtransannot-begin

示例#2

文件： graphics.py 项目： hansenrl/cs249-2

              width = 936, height = 624, antialias="subpixel", type="cairo")
#-- ggplot2mtcarscoordtrans-begin
from rpy2.robjects.lib import grid
grid.newpage()
grid.viewport(layout=grid.layout(2, 3)).push()

diamonds = ggplot2.ggplot2.__rdata__.fetch('diamonds')['diamonds']
gp = ggplot2.ggplot(diamonds)

for col_i, trans in enumerate(("identity", "log2", "sqrt")):
   # fetch viewport at position col_i+1 on the first row
   vp = grid.viewport(**{'layout.pos.col':col_i+1, 'layout.pos.row': 1})
   pp = gp + \
       ggplot2.aes_string(x='carat', y='price') + \
       ggplot2.geom_point(alpha = 0.1, size = 1) + \
       ggplot2.coord_trans(x = trans, y = trans) + \
       ggplot2.ggtitle("%s on axis" % trans)   
   # plot into the viewport
   pp.plot(vp = vp)

   # fetch viewport at position col_i+1 on the second row
   vp = grid.viewport(**{'layout.pos.col':col_i+1, 'layout.pos.row': 2})
   pp = gp + \
       ggplot2.aes_string(x='%s(carat)' % trans, y='%s(price)' % trans) + \
       ggplot2.geom_point(alpha = 0.1, size = 1) + \
       ggplot2.ggtitle("%s(<variable>)" % trans)   
   pp.plot(vp = vp)

#-- ggplot2mtcarscoordtrans-end

#-- ggplot2mtcarscoordtransannot-begin