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GGBunch

GGBunch allows to show a collection of plots on one figure. Each plot in the collection can have arbitrary location and size. There is no automatic layout inside the bunch.

In [1]:
import numpy as np
from lets_plot import *

LetsPlot.setup_html()
In [2]:
cov=[[1, 0], 
     [0, 1]]     
x, y = np.random.multivariate_normal(mean=[0,0], cov=cov, size=400).T

data = dict(
    x = x,
    y = y
)

View this data as a scatter plot and as a histogram

In [3]:
p = ggplot(data) + ggsize(600,200)

scatter = p + geom_point(aes('x', 'y'), color='black', alpha=.4)
scatter
Out[3]:
In [4]:
histogram = p + geom_histogram(aes('x', y = '..count..'), fill='dark_magenta')
histogram
Out[4]:

Combine both plots in one figure

In [5]:
# Set scale X limits manually because of computed automatically
# the scale used by each plot would be slightly different
# and the stacked plots wouldn't be aligned.
scale_x = scale_x_continuous(limits=[-3.5, 3.5])
bunch = GGBunch()
bunch.add_plot(histogram + scale_x, 0, 0)
bunch.add_plot(scatter + scale_x, 0, 200)
bunch.show()

Adjust visuals of the bunch figure

In [6]:
upper_theme = theme(axis_title_x='blank', axis_ticks_x='blank', axis_line='blank', \
                    panel_grid='blank')
lower_theme = theme(axis_text_x='blank', axis_ticks_x='blank', axis_line='blank')
In [7]:
bunch1 = GGBunch()
bunch1.add_plot(histogram + upper_theme + scale_x, 0, 0)
bunch1.add_plot(scatter + lower_theme + scale_x, 0, 200)
bunch1.show()

Adjust plot sizes

add_plot() method has two more (optional) parameters: width and height.

This values will override plot size earlier defined via ggsize() function.

In [8]:
bunch2 = GGBunch()
bunch2.add_plot(histogram + upper_theme + scale_x, 0, 0, 600, 100)
bunch2.add_plot(scatter + lower_theme + scale_x, 0, 100, 600, 300)
bunch2.show()