mantao/Gnuplot.jl
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Giorgio Calderone 2020-04-28 18:42:58 +02:00
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@ -255,6 +255,23 @@ saveas("advanced014e") # hide
![](assets/advanced014e.png) ![](assets/advanced014e.png)
The [`contourlines()`](@ref) function also allows to calculate the contour lines encompassing a given fraction of the total counts of a 2D histogram. E.g. to plot the contours corresponding to 1, 2, and 3 $\sigma$ of a 2D Gaussian distribution:
```@example abc
x = randn(10^5);
y = randn(10^5);
h = hist(x, y, nbins1=20, nbins2=20);
# Calculate probability within 0 < r < σ
p(σ) = round(1 - exp(-(σ^2) / 2), sigdigits=3)
# Draw contour lines at 1, 2 and 3 σ
clines = contourlines(h, p.(1:3));
@gp palette(:beach, smooth=true, rev=true) "set grid front" "set size ratio -1" h clines
saveas("advanced014f") # hide
```
![](assets/advanced014f.png)
## Animations ## Animations
The [Multiplot](@ref) capabilities can also be used to stack plots one above the other in order to create an animation, as in the following example: The [Multiplot](@ref) capabilities can also be used to stack plots one above the other in order to create an animation, as in the following example: