Starting with this example, I would like to do something very similar but being able to use negative values for variables in the code, for example;
menMeans = (-20, 35, -30, 35, -27)
womenMeans = (25, -32, 34, -20, 25)
, although this has nothing to do with the men/women meaning. But when I do this, I can not see anything related with negative values in the plot. I also change Y scale;
plt.yticks(np.arange(-81,81,10))
but nothing. Any hints?
I change the y axis scale by the following command:
plt.ylim([-81,81])
which will set the y axis scale from -81 to 81
for the x scale axis that would be
plt.xlim([ xmin,xmax])
in the gallery example you find this line of code:
plt.bar(ind, womenMeans, width, color='y',bottom=menMeans, yerr=menStd)
the value for the bottom can be chosen negative so that the bar starts from somewhere negative and is womenMeans long.
a yellow bar from -200 to 20 at x=5 with width = 10
would be:
plt.bar(5, 220,10, color='y',bottom=-200)
