This function computes alpha
for scatter plots with a large number of data
points. It is intended to alleviate overplotting.
1 2 | get_alpha(fxGeom_alpha.threshold, fxGeom_alpha.half, fxGeom_alpha.min,
n_row)
|
fxGeom_alpha.threshold |
What is the threshold number of data points to let transparency increase? Default is 1000 |
fxGeom_alpha.half |
What number of data points should result in
|
fxGeom_alpha.min |
What is the minimal |
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