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Polygonal Plot

Polygonal (radar) plot with mean and standard deviation (or error) values


Updated 29 Jan 2020

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Function polygonplot plots a kind of radial plot whose shape is a N-polygon, depending on the size of the data. It have also provide users the functionality of plotting a shaded error area if the dimension of the data is highly enough.
Input parameters:
- data: Data matrix.
* Mean case: [N x nlines], with N corresponding to the number of points of each line (number of polygon sides) and nlines corresponding to the number of lines to plot.
* Error bar case: [N x nlines x M], with M corresponding to the number of observations. Use NaN to ignore the value, in case that lines have different number of observation among themselves.
- opt_axes: (Optional) Struct with the axes options.
* opt_axes.Ticks: Vector that contains the axis ticks.
* opt_axes.Background: Background color of the tick labels.
* opt_axes.Labels: {1 x N} cell-vector with the axes labels
- opt_lines:(Optional) Struct with the lines options.
* opt_lines.LineWidth: Width of the means.
* opt_lines.LineStyle: Line style of the means.
* opt_lines.Marker: Marker of the means.
* opt_lines.Color: [nlines x 3] matrix with RGB colors.
* opt_lines.Labels: Boolean. If true, text labels of each point are plotted.
* opt_lines.Legend: {1 x nlines} cell-matrix with the legend of each line.
- opt_area: (Optional) Struct with the shaded area options.
* opt_area.err: Type of error to plot:
if 'std', one standard deviation;
if 'sem', standard error mean;
if 'var', one variance;
if 'c95', 95 confidence interval.
* opt_area.FaceAlpha: Alpha transparency constant.
* opt_area.Color: [nlines x 3] matrix with RGB colors.
Example of use:
d_ex = [2 3; 1 0; 0.1 3; -1 7; -0.2 0.9];
data = cat(3,d_ex-0.5,d_ex,d_ex+0.7);

Cite As

Víctor Martínez-Cagigal (2020). Polygonal Plot (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (4)

Is there a way to change the axes to logarithmic?

Great job


Excellent. Much better than the radial figures from excel.



NaN values are allowed.

Solved an issue that filled all the plot if the error is null.

MATLAB Release Compatibility
Created with R2015a
Compatible with any release
Platform Compatibility
Windows macOS Linux