ylabel — Set the y-axis label for the current or specified axes.
ylabel(txt) sets the y-axis label and returns the label object's graphics handle.
Syntax
h = ylabel(txt)
h = ylabel(ax, txt)
h = ylabel(txt, Name, Value, ...)
h = ylabel(ax, txt, Name, Value, ...)Inputs
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
txt | Any | Yes | — | Label text (string/char/cellstr-like multiline forms). |
ax | AxesHandle | Yes | — | Target axes handle. |
props | Any | Variadic | — | Property/value pairs (Color, FontSize, FontWeight, etc.). |
Returns
| Name | Type | Description |
|---|---|---|
h | NumericScalar | Handle to the created/updated ylabel object. |
Errors
| Identifier | When | Message |
|---|---|---|
RunMat:ylabel:InvalidArgument | Axes handle, text payload, or property/value arguments are invalid. | ylabel: invalid argument |
RunMat:ylabel:Internal | Internal plotting state update fails. | ylabel: internal operation failed |
How ylabel works
- Text may be supplied as a string, character vector, string array, cell array, or numeric scalar.
- Native integer scalar labels use their exact decimal spelling.
FontSizeaccepts single, double, and all eight native integer classes; values must be positive and finite.- An axes handle may be supplied first. RunMat mode additionally accepts a typed-integer alias for an encoded axes handle.
Examples
Label an axis
plot(1:10, rand(1, 10));
ylabel('Amplitude')Use an integer label and font size
ylabel(intmax('uint64'), 'FontSize', uint8(14))Using ylabel with coding agents
Open a RunMat example with live inputs, then ask the agent to explain how ylabel changes the result.
Run a small ylabel example, explain the result, then change one input and compare the output.
Related Plotting functions
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area · bar · errorbar · heatmap · hist · histogram · loglog · pie · plot · scatter · semilogx · semilogy · stairs · stem
Other
addpoints · ancestor · animatedline · axes · barh · caxis · cla · clf · clim · colorcube · colororder · copyobj · daspect · datacursormode · dataTipTextRow · fcontour · figure · fill · fill3 · findobj · fsurf · gobjects · groot · hgload · hgsave · hidden · histogram2 · hold · line · linkaxes · openfig · opengl · pan · parula · patch · plotmatrix · plotyy · polarhistogram · polarplot · polarscatter · print · quiver3 · ribbon · saveas · savefig · sphere · stackedplot · subtitle · suptitle · text · textscatter · textscatter3 · triplot · waitbar · wordcloud · xlabel · xlim · xline · xscale · xtickangle · xtickformat · xticklabels · xticks · ylim · yline · yscale · ytickangle · ytickformat · yticklabels · yticks · zlim · zoom
More plotting resources
Open-source implementation
Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how ylabel is executed, line by line, in Rust.
- View the source for ylabel in Rust on GitHub
- Learn how the RunMat runtime works
- Found a bug? Open an issue with a minimal reproduction.
About RunMat
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