{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import ipyleaflet \n",
    "import json \n",
    "import pandas as pd\n",
    "from ipywidgets import link, FloatSlider\n",
    "from branca.colormap import linear\n",
    "\n",
    "geo_json_data = json.load(open('us-states.json')) \n",
    "m = ipyleaflet.Map(center = (43,-100), zoom = 4)\n",
    "unemployment = pd.read_csv('US_Unemployment_Oct2012.csv')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "unemployment =  dict(zip(unemployment['State'].tolist(), unemployment['Unemployment'].tolist()))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "layer = ipyleaflet.Choropleth(\n",
    "    geo_data=geo_json_data,\n",
    "    choro_data=unemployment,\n",
    "    colormap=linear.YlOrRd_04, \n",
    "    border_color='black',\n",
    "    style={'fillOpacity': 0.8, 'dashArray': '5, 5'}\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "m.add_layer(layer)\n",
    "m"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "slider = FloatSlider(min=layer.value_min, max=layer.value_max, continuous_update=False)\n",
    "slider.value = layer.value_min\n",
    "link((slider, 'value'), (layer, 'value_min'))\n",
    "slider"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "linear.YlOrBr_04.to_step(10)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "linear.RdBu_11"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "linear.GnBu_09"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "layer.colormap = linear.RdBu_11"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "layer.border_color = 'white'"
   ]
  }
 ],
 "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": "3.7.0"
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 "nbformat": 4,
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}