stairs — Render MATLAB-compatible stairs (step) plots.

stairs(x, y) draws a stairstep graph of the data in y versus the points in x, matching MATLAB's default styling. Each successive pair of points generates a horizontal segment followed by a vertical jump.

How stairs works in RunMat

• Inputs must be real vectors of matching, non-zero length.
• With single precision gpuArrays and the shared WebGPU renderer active, RunMat packs the vertex buffer directly on the GPU. Other data falls back to the CPU path automatically.
• Like MATLAB, repeated calls append to the current axes when hold on is enabled.

Example

t = 0:5;
stairs(t, cumsum(rand(size(t))))

Related functions to explore

These functions work well alongside stairs. Each page has runnable examples you can try in the browser.

bar, contour, contourf, hist, mesh, meshc, plot, scatter, scatter3, surf, surfc

Open-source implementation

Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how stairs works, line by line, in Rust.

• View stairs.rs on GitHub
• Learn how the runtime works
• Found a bug? Open an issue with a minimal reproduction.

About RunMat

RunMat is an open-source runtime that executes MATLAB-syntax code — faster, on any GPU, with no license required.

• Simulations that took hours now take minutes. RunMat automatically optimizes your math for GPU execution on Apple, Nvidia, and AMD hardware. No code changes needed.
• Start running code in seconds. Open the browser sandbox or download a single binary. No license server, no IT ticket, no setup.
• A full development environment. GPU-accelerated 2D and 3D plotting, automatic versioning on every save, and a browser IDE you can share with a link.

Getting started · Benchmarks · Pricing