runmat-runtime 0.4.1

Core runtime for RunMat with builtins, BLAS/LAPACK integration, and execution APIs
Documentation
{
  "title": "semilogy",
  "category": "plotting",
  "keywords": [
    "semilogy",
    "logarithmic y-axis",
    "semilog plot",
    "matlab semilogy",
    "exponential plot"
  ],
  "summary": "Plot data with a logarithmic y-axis for exponential trends, decay curves, and MATLAB `semilogy` workflows.",
  "requires_feature": null,
  "tested": {
    "unit": "builtins::plotting::semilogy::tests"
  },
  "description": "`semilogy` uses the standard RunMat line-plot path and then marks the active y-axis as logarithmic. It is a natural fit for exponential decay, growth curves, and magnitude data that spans orders of magnitude along Y while preserving MATLAB `semilogy` call forms.",
  "behaviors": [
    "The returned value is a numeric line handle.",
    "Only the y-axis is switched to log scale; the x-axis remains linear.",
    "Y log-mode state is subplot-local and does not leak into other subplot axes.",
    "Positive y-values are the meaningful domain for a logarithmic y-axis."
  ],
  "examples": [
    {
      "description": "Plot an exponential decay on a logarithmic y-axis",
      "input": "t = linspace(0, 10, 200);\nsemilogy(t, exp(-t));"
    },
    {
      "description": "Compare multiple decays on the same axes",
      "input": "t = linspace(0, 10, 200);\nh1 = semilogy(t, exp(-t));\nset(h1, 'DisplayName', 'exp(-t)');\nhold on;\nh2 = semilogy(t, exp(-0.3*t));\nset(h2, 'DisplayName', 'exp(-0.3t)');\nlegend;"
    },
    {
      "description": "Inspect the y-axis scale after plotting",
      "input": "t = 0:0.1:4;\nsemilogy(t, exp(t));\nax = gca;\nget(ax, 'YScale')",
      "output": "ans =\n    'log'"
    }
  ],
  "links": [
    { "label": "plot", "url": "./plot" },
    { "label": "semilogx", "url": "./semilogx" },
    { "label": "loglog", "url": "./loglog" },
    { "label": "axis", "url": "./axis" }
  ],
  "source": {
    "label": "`crates/runmat-runtime/src/builtins/plotting/ops/semilogy.rs`",
    "url": "https://github.com/runmat-org/runmat/blob/main/crates/runmat-runtime/src/builtins/plotting/ops/semilogy.rs"
  }
}