Merge pull request matplotlib#24130 from martok/doc-contour-levels

DOC: align contour parameter doc with implementation

Author: timhoffm

lib/matplotlib/contour.py

@@ -1600,7 +1600,7 @@ def _initialize_x_y(self, z):
 
     If an int *n*, use `~matplotlib.ticker.MaxNLocator`, which tries
     to automatically choose no more than *n+1* "nice" contour levels
-    between *vmin* and *vmax*.
+    between minimum and maximum numeric values of *Z*.
 
     If array-like, draw contour lines at the specified levels.
     The values must be in increasing order.

lib/matplotlib/tri/tricontour.py

@@ -114,7 +114,7 @@ def _contour_args(self, args, kwargs):
 
     If an int *n*, use `~matplotlib.ticker.MaxNLocator`, which tries to
     automatically choose no more than *n+1* "nice" contour levels between
-    *vmin* and *vmax*.
+    between minimum and maximum numeric values of *Z*.
 
     If array-like, draw contour lines at the specified levels.  The values must
     be in increasing order.