peaks
From pracma v1.9.9
by HwB
Peaks Function (Matlab Style)
An example functions in two variables, with peaks.
 Keywords
 graphs
Usage
peaks(v = 49, w)
Arguments
 v
 vector, whose length will be used, or a natural number.
 w
 another vector, will be used in
meshgrid(x,y)
.
Details
peaks
is a function of two variables, obtained by translating
and scaling Gaussian distributions, which is useful for demonstrating
threedimensional plots.
Value

Returns three matrices as a list with
X
, Y
, and Z
components, the first two being the result of the meshgrid
function,
and Z
the application of the following function at the points of
X
and Y
:z < 3 * (1x)^2 * exp((x^2)  (y+1)^2) 
10 * (x/5  x^3  y^5) * exp(x^2  y^2) 
1/3 * exp((x+1)^2  y^2)
Note
The variant that peaks()
will display the 3dim. graph as in Matlab
is not yet implemented.
See Also
Examples
peaks(3)
## Not run:
# P < peaks()
# x < P$X[1,]; y < P$Y[, 1]
# persp(x, y, P$Z)
# ## End(Not run)
Community examples
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