Can I animate a scatter plot?

[Jonathan_Rhone]

Hi @mglerner,

Welcome to the forum

Does this example where we animate an Altair Scatterplot fit your needs?

Appending to scatter chart sub-plots

Hey @dazmundo - In general, to append data to any chart, you use the add_rows function. (You call add_rows on the value returned from the various st. calls.) However, matplotlib charts aren’t “live” (they don’t live in the browser and therefore aren’t interactive; instead, matplotlib renders your chart to a static image which is then sent to the browser.) So add_rows does not work with matplotlib. I’d recommend using Altair to render your scatter chart instead. (Streamlit has good support for…

Here’s another link where we’re animating other kinds of streamlit elements.

How to animate a line chart

import matplotlib.pyplot as plt import numpy as np import streamlit as st import time fig, ax = plt.subplots() max_x = 50 max_rand = 100 frame_count = 100 x = np.arange(0, max_x) ax.set_ylim(0, max_rand) data = np.random.randint(0, max_rand, frame_count+max_x) line, = ax.plot(x, data[0:max_x]) the_plot = st.pyplot(plt) def animate(i): # update the y values (every 1000ms) line.set_ydata(data[i:max_x+i]) the_plot.pyplot(plt) for i in range(frame_count): animate(i) ti…