How can I add small circles of different sizes in each grid of a heatmap?

[wyxxxj]

Can we add circles of different sizes in each grid of a heatmap? If so, could you please provide an example? Thank you!

[moshi4]

Hi @wyxxxj,

Although I could not plot a similar legend, it was possible to plot circles of different sizes on the heatmap grid.
It seems difficult to set the appropriate circle size, so it would be a challenge to visualize the analysis results in this plot format. Due to the difficulty of the plot, I do not intend to provide further support, but good luck.

Code Example

from pycirclize import Circos
import numpy as np
np.random.seed(0)

# Create 10 - 100 random values (8 x 80) 2d-array
darray = np.random.randint(10, 100 + 1, (8, 80))

# Plot heatmap
x_size, y_size = darray.shape[1], darray.shape[0]
circos = Circos(dict(heatmap=x_size))
sector = circos.sectors[0]
track = sector.add_track((50, 100))
track.heatmap(darray, vmin=0, vmax=100, cmap="Oranges")

# Plot circle on heatmap rect
for i in range(y_size):
    for j in range(x_size):
        v = darray[i][j]
        x, y = j + 0.5, y_size - i - 0.5
        # Circle size(s) is defined based on 2d-array value
        # In the actual data analysis, some sort of correction would need to be applied to determine the circle size.
        track.scatter([x], [y], s=v, vmin=0, vmax=y_size, fc="none", ec="black", lw=0.5)

circos.savefig("example.png")

example.png

[wyxxxj]

Thank you very much for your reply！I have successfully drawn the graph！