{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "URL: https://docs.bokeh.org/en/latest/docs/examples/basic/annotations/legend.html\n",
    "\n",
    "Most examples work across multiple plotting backends, this example is also available for:\n",
    "\n",
    "* [Matplotlib - legend_example](../matplotlib/legend_example.ipynb)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "import holoviews as hv\n",
    "hv.extension('bokeh')"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Defining data"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "x = np.linspace(0, 4*np.pi, 100)\n",
    "y = np.sin(x)\n",
    "\n",
    "scatter1 = hv.Scatter((x, y), label='sin(x)')\n",
    "scatter2 = hv.Scatter((x, y*2), label='2*sin(x)').opts(color='orange')\n",
    "scatter3 = hv.Scatter((x, y*3), label='3*sin(x)').opts(color='green')\n",
    "scatter4 = hv.Scatter(scatter3).opts(line_color='green', marker='square', fill_alpha=0, size=5)\n",
    "\n",
    "curve1 = hv.Curve(scatter1)\n",
    "curve2 = hv.Curve(scatter2).opts(line_dash=(4, 4), color='orange')\n",
    "curve3 = hv.Curve(scatter3).opts(color='orange')"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Plot"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "example1 = scatter1 * scatter2 * scatter3\n",
    "example2 = scatter1 *  curve1 * curve2 * scatter4 * curve3\n",
    "\n",
    "example1.relabel(\"Legend Example\") + example2.relabel(\"Another Legend Example\")"
   ]
  }
 ],
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  "language_info": {
   "name": "python",
   "pygments_lexer": "ipython3"
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 "nbformat_minor": 2
}