matplotlib.pyplot scatter plot 即使具有不同的值，也仅在图中显示单个点

Question

I have a movie dataset, I want to scatter plot the mean of computed_sales column and mean of movie_facebook_likes. the mean value for computed_sales is 4097131.5023790644, while for movie_facebook_likes is 7524.472442505948. But the graph shows only a dot.

fig = plt.figure(figsize=(10,8))
plt.scatter(data["compute_sales"].mean(), data["movie_facebook_likes"].mean())
plt.show()

Answer 1

Mean is one value. You have asked it to plot one value. This is expected behaviour

Answer 2

Scatter plot takes a set of points. All X-coordinates as one array and all Y-coordinates as one array. So you provided only one X-value and its corresponding Y-value. So it is expected that you will only have one point in the plot which is (x,y) = (4097131.5023790644, 7524.472442505948) .

So .mean() only gives you one value which is why one point. If you wanna plot them all, do this instead:

plt.scatter(data["compute_sales"], data["movie_facebook_likes"])