Hi all,

I am trying hard to do the following and have already spent a few hours in
vain:

I wanted to do the scatter plot.

But given the high dispersion on those dots, I would like to bin the x-axis
and then for each bin of the x-axis, plot the quantiles of the y-values of
the data points in each bin:

1. Uniform bin size on the x-axis;
2. Equal number of observations in each bin;

How to do that in R? I guess for the sake of prettyness, I'd better do it
in ggplot2?

Thank you!

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