Added an extrema(plt) which return the tuple (xmin, xmax), and changed abline! to use extrema.

2016-02-03 10:39:32 +01:00
parent 5c4526725b
commit 1963fe208e
2 changed files with 4 additions and 2 deletions
@@ -132,7 +132,7 @@ end

 "Adds a+bx... straight line over the current plot"
 function abline!(plt::Plot, a, b; kw...)
-    plot!(plt, [xmin(plt), xmax(plt)], x -> b + a*x; kw...)
+    plot!(plt, [extrema(plt)...], x -> b + a*x; kw...)
 end

-abline!(args...; kw...) = abline!(current(), args...; kw...)
+abline!(args...; kw...) = abline!(current(), args...; kw...)
@@ -471,3 +471,5 @@ xmin(plt::Plot) = minimum([minimum(d[:x]) for d in plt.seriesargs])
 "Largest x in plot"
 xmax(plt::Plot) = maximum([maximum(d[:x]) for d in plt.seriesargs])

+"Extrema of x-values in plot"
+Base.extrema(plt::Plot) = (xmin(plt), xmax(plt))