{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "\n# Step Demo\n\nThis example demonstrates the use of `.pyplot.step` for piece-wise constant\ncurves. In particular, it illustrates the effect of the parameter *where*\non the step position.\n\n

Note

For the common case that you know the edge positions, use `.pyplot.stairs`\n instead.

\n\nThe circular markers created with `.pyplot.plot` show the actual data\npositions so that it's easier to see the effect of *where*.\n" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": false }, "outputs": [], "source": [ "import matplotlib.pyplot as plt\nimport numpy as np\n\nx = np.arange(14)\ny = np.sin(x / 2)\n\nplt.step(x, y + 2, label='pre (default)')\nplt.plot(x, y + 2, 'o--', color='grey', alpha=0.3)\n\nplt.step(x, y + 1, where='mid', label='mid')\nplt.plot(x, y + 1, 'o--', color='grey', alpha=0.3)\n\nplt.step(x, y, where='post', label='post')\nplt.plot(x, y, 'o--', color='grey', alpha=0.3)\n\nplt.grid(axis='x', color='0.95')\nplt.legend(title='Parameter where:')\nplt.title('plt.step(where=...)')\nplt.show()" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "The same behavior can be achieved by using the ``drawstyle`` parameter of\n`.pyplot.plot`.\n\n" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": false }, "outputs": [], "source": [ "plt.plot(x, y + 2, drawstyle='steps', label='steps (=steps-pre)')\nplt.plot(x, y + 2, 'o--', color='grey', alpha=0.3)\n\nplt.plot(x, y + 1, drawstyle='steps-mid', label='steps-mid')\nplt.plot(x, y + 1, 'o--', color='grey', alpha=0.3)\n\nplt.plot(x, y, drawstyle='steps-post', label='steps-post')\nplt.plot(x, y, 'o--', color='grey', alpha=0.3)\n\nplt.grid(axis='x', color='0.95')\nplt.legend(title='Parameter drawstyle:')\nplt.title('plt.plot(drawstyle=...)')\nplt.show()" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ ".. admonition:: References\n\n The use of the following functions, methods, classes and modules is shown\n in this example:\n\n - `matplotlib.axes.Axes.step` / `matplotlib.pyplot.step`\n - `matplotlib.axes.Axes.plot` / `matplotlib.pyplot.plot`\n\n.. tags::\n\n plot-type: step\n plot-type: line\n level: beginner\n\n" ] } ], "metadata": { "kernelspec": { "display_name": "Python 3", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.13.2" } }, "nbformat": 4, "nbformat_minor": 0 }