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Graphics functions

semilogx >>

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scatter

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Scatter plot.

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Syntax

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scatter(x, y)

scatter(x, y, sz)

scatter(x, y, sz, c)

scatter(..., 'filled')

scatter(..., marker)

scatter(ax, ...)

scatter(..., propertyName, propertyValue)

s = scatter(...)

Input argument

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X

x-coordinates: vector or matrix.

Y

y-coordinates: vector or matrix.

sz

Marker size: numeric scalar, vector, [] (default: 36)

c

Marker color: color name, RGB triplet or vector of colormap indices

ax

a scalar graphics object value: parent container, specified as a axes.

propertyName

a scalar string or row vector character. see help of 'line' for property list.

propertyValue

a value.

Output argument

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s

a graphics object: line type or group of line.

Description

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scatter(x, y) generates a scatter plot by placing circular markers at the coordinates defined by the vectors x and y.

If you intend to display a single dataset, ensure that both x and y are vectors of the same length.

To visualize multiple datasets on a shared set of axes, you can achieve this by using a matrix for either x or y, while keeping the other as a vector.

This allows you to overlay or compare multiple datasets within the same plot.

marker specifies the symbol to be drawn at each data point:

'o': Circle symbol

'x': Times symbol

'+': Plus symbol

'*': Asterisk symbol

'.': Dot symbol

's': Square symbol

'd': Diamond symbol

'v': Downward-pointing triangle symbol

'^': Upward-pointing triangle symbol

'>': Left-pointing triangle symbol

'<': Right-pointing triangle symbol

The ColorSpec specifies the marker color to use for each data series:

'k': Color Black

'y': Color Yellow

'm': Color Magenta

'c': Color Cyan

'r': Color Red

'b': Color Blue

'g': Color Green

see line for more information about properties

Examples

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f = figure();
theta = linspace(0,1,600);
x = exp(theta).*sin(110*theta);
y = exp(theta).*cos(110*theta);
s = scatter(x,y ,'filled');

f = figure();
x = linspace(0,3*pi,255);
y = cos(x) + rand(1,255);
sz = 1:255;
c = 1:length(x);
scatter(x, y, sz, c, 'd', 'filled')

f = figure();
x = linspace(0, 3*pi, 255);
y = cos(x) + rand(1, 255);
c = linspace(1,10,length(x));
scatter(x, y, [], c, 'filled')

f = figure();
theta = linspace(0,2*pi,244);
x = sin(theta) + 0.75*rand(1,244);
y = cos(theta) + 0.75*rand(1,244);  
sz = 45;
scatter(x,y,sz,'MarkerEdgeColor',[0 .6 .5], 'MarkerFaceColor',[0 .6 .7],  'LineWidth',3.5)

f = figure(),
x = linspace(0,3*pi,200);
y = cos(x) + rand(1,200);
% Top plot
ax1 = subplot(2,1, 1);
scatter(ax1,x,y)
% Bottom plot
ax2 = subplot(2,1, 2);
scatter(ax2,x,y,'filled','d')

f = figure();
x = rand(500,5);
y = randn(500,5) + (5:5:25);
s = scatter(x,y, 'filled');

See also

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line, plot.

History

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Version	Description
1.0.0	initial version

Author

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Allan CORNET