contour

Purpose

Graphs a matrix of contour data.

Note

This function is for the deprecated PQG graphics.

Library

pgraph

Format

contour(x, y, z)
Parameters:
  • x (1xK vector) – the X axis data. K must be odd.
  • y (Nx1 vector) – the Y axis data. N must be odd.
  • z (NxK matrix) – the matrix of height data to be plotted.

Global Input

\_plev

Kx1 vector, user-defined contour levels for contour. Default 0.

\_pzclr

Nx1 or Nx2 vector. This controls the Z level colors. See surface() for a complete description of how to set this global.

Remarks

A vector of evenly spaced contour levels will be generated automatically from the z matrix data. Each contour level will be labeled. For unlabeled contours, use ztics().

To specify a vector of your own unequal contour levels, set the vector _plev before calling contour().

To specify your own evenly spaced contour levels, see ztics().

Source

pcontour.src

See also

surface()