python ggplot legend size

Question

I've been using the underying matplot lib library to make adjustments that ggplot does not allow me to.

p = ggplot(aes(x='meh',y='mah'),data=df)
t = theme_gray()
t._rcParams['font.size'] = 30
t._rcParams['xtick.labelsize'] = 20
t._rcParams['ytick.labelsize'] = 20

p = p + t

This works as expected. I now wish to increase the size of the legend, which I am creating via adding the color argument:

p = ggplot(aes(x='meh',y'mah',color='week'),data=df)

From here, I can see the following argument for editing the legend:

t._rcParams['legend.fontsize'] = 20

Despite there being no errors, this does not doing anything to the legend text size.

´y mah´ in your code surely returns an error. there are several way one can change legend font size, one is given here: http://stackoverflow.com/questions/20407773/increase-legend-font-size-ggplot2 — tagoma, Mar 18 '17 at 09:59

tagoma · Accepted Answer · 2017-03-18T19:01:37.650

3

After making several tests, it looks like legend font size is actually controlled by the parameter font.size. And it also looks like xaxis and yaxis legend font size cannot controlled independently.

(In the image below, the legend that is color argument is for illustration purpose only)

from ggplot import *
p = ggplot(aes(x='date', y='beef', color='beef'), data=meat) + geom_line()
t = theme_gray()
t._rcParams['font.size'] = 40 # Legend font size
t._rcParams['xtick.labelsize'] = 20 # xaxis tick label size
t._rcParams['ytick.labelsize'] = 30 # yaxis tick label size
t._rcParams['axes.labelsize'] = 30  # axis label size
p + t

edited Mar 18 '17 at 19:01

answered Mar 18 '17 at 10:47

tagoma

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Thanks! What version of ggplot and matplotlib are you using? I can't re-create this :/ – LearningSlowly Mar 18 '17 at 10:59
matplotlib: 2.0.0b3 and ggplot: 0.6.8 . do you get a message error or something? – tagoma Mar 18 '17 at 11:09

python ggplot legend size

1 Answers1