Line Styles

Most line plots display a solid line by default, but you can customize the line with any of the line styles in the following table. For example, create a line plot with a dashed line:

plot([0 1 2 3],'--')

Markers

Usually, you can specify a marker symbol in addition to the line style. The markers appear at the data points in your chart. For example, create a line plot with a dashed line and circular markers:

plot([0 1 2 3],'--o')

Specify Combinations of Colors, Line Styles, and Markers

Many plotting functions have a single argument for specifying the color, the line style, and the marker. For example, theplotfunction has an optionallinespecargument for specifying one or more of these aspects. (Alternatively, you can set properties to modify the plot after creating it.)

Create a plot with a red dashed line and circular markers by specifying thelinespecargument as'--or'。For this combination,'--'corresponds to a dashed line,'o'corresponds to circular markers, and'r'corresponds to red.

plot([1 2 3 4 5 6],[0 3 1 6 4 10],'--or')

You do not need to specify all three aspects of the line. For example, if you specify only the marker, the plot displays the markers with the default color and no line.

plot([1 2 3 4 5 6],[0 3 1 6 4 10],'o')

You can use thelinespecargument to specify a named color, but to specify a custom color, set an object property. For example,Lineobjects have aColorproperty.

Create a plot with a purple line that has circular markers. Specify only the line and marker symbols in thelinespecargument. Set theColorproperty separately as a name-value argument. Return theLineobject asp, so you can change other properties later.

p = plot([1 2 3 4 5 6],[0 3 1 6 4 10],'-o','Color',[0.5 0 0.8]);

Next, change the color of the line to a shade of green by setting theColorproperty to the hexadecimal color code'#00841a'。然后改变线型破灭,和改变the markers to asterisks.

Before R2019a, specify the color as an RGB triplet instead of a hexadecimal color code. For example,p.Color = 0.52 - 0.10 [0]。

p.Color ='#00841a'; p.LineStyle ='--'; p.Marker ='*';

Modify Line Width, Marker Fill, and Marker Outline

You can modify other aspects of lines by setting properties. For example,Lineobjects have aLineWidthproperty for controlling the line's thickness. To create a thicker line, you can specify theLineWidthas a name-value argument when you call theplotfunction. In this case, set theLineWidthto3。Return theLineobject aspso you can set other properties later.

p = plot([1 2 3 4 5 6],[0 3 1 6 4 10],'-o','LineWidth',3);

Fill the markers with a shade of orange by setting theMarkerFaceColorproperty on theLineobject. Then increase the marker size to8by setting theMarkerSizeproperty.

p.MarkerFaceColor = [1 0.5 0]; p.MarkerSize = 8;

Change the outlines of the markers to match the fill color by setting theMarkerEdgeColorproperty.

p.MarkerEdgeColor = [1 0.5 0];