### Question :

I have plotted my data with `factorplot`

in `seaborn`

and get `facetgrid`

object, but still cannot understand how the following attributes could be set in such a plot:

- Legend size: when I plot lots of variables, I get very small legends, with small fonts.
- Font sizes of y and x labels (a similar problem as above)

##
Answer #1:

You can scale up the fonts in your call to `sns.set()`

.

```
import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns
x = np.random.normal(size=37)
y = np.random.lognormal(size=37)
# defaults
sns.set()
fig, ax = plt.subplots()
ax.plot(x, y, marker='s', linestyle='none', label='small')
ax.legend(loc='upper left', bbox_to_anchor=(0, 1.1))
```

```
sns.set(font_scale=5) # crazy big
fig, ax = plt.subplots()
ax.plot(x, y, marker='s', linestyle='none', label='big')
ax.legend(loc='upper left', bbox_to_anchor=(0, 1.3))
```

##
Answer #2:

The `FacetGrid`

plot does produce pretty small labels. While @paul-h has described the use of `sns.set`

as a way to the change the font scaling, it may not be the optimal solution since it will change the `font_scale`

setting for all plots.

You could use the `seaborn.plotting_context`

to change the settings for just the current plot:

```
with sns.plotting_context(font_scale=1.5):
sns.factorplot(x, y ...)
```

##
Answer #3:

I’ve made small modifications to @paul-H code, such that you can set the font size for the x/y axes and legend independently. Hope it helps:

```
import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns
x = np.random.normal(size=37)
y = np.random.lognormal(size=37)
# defaults
sns.set()
fig, ax = plt.subplots()
ax.plot(x, y, marker='s', linestyle='none', label='small')
ax.legend(loc='upper left', fontsize=20,bbox_to_anchor=(0, 1.1))
ax.set_xlabel('X_axi',fontsize=20);
ax.set_ylabel('Y_axis',fontsize=20);
plt.show()
```

This is the output:

##
Answer #4:

For the legend, you can use this

```
plt.setp(g._legend.get_title(), fontsize=20)
```

Where g is your facetgrid object returned after you call the function making it.