[Matplotlib-users] full grid for 2nd y-axis wit twinx() ?

[Daniel M. <dan...@go...>]

Hi,

I need a twinx() plot with horizontal and vertical grid lines for the
second axis, just like the usual grid for the first axis. I don't need or
want to specify the ticks manually, though!

My example code just produces horizontal lines:

import pylab


datax = pylab.arange(50)

data1 = pylab.sin(datax)*1.5

data2 = datax**2


pylab.close('all')


fig = pylab.figure()

ax1 = fig.add_subplot(111)

ax2 = ax1.twinx()


ax1.plot(datax, data1, 'x')

ax2.plot(datax, data2, '--')


#ax1.grid()

ax2.grid()


fig.show()


Thanks in advance!