Bar graph stuff for Plotly 4.

Author: cwant

notebooks/03b-plotly-bar.ipynb

@@ -20,19 +20,16 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "import plotly.offline as py\n",
     "import numpy as np\n",
-    "import plotly.graph_objs as go\n",
-    "import pandas as pd\n",
-    "\n",
-    "py.init_notebook_mode(connected=False)"
+    "import plotly.graph_objects as go\n",
+    "import pandas as pd"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "People using Colab need this (initialization and download of supporting materials)"
+    "We may need to download some files ..."
    ]
   },
   {
@@ -41,22 +38,25 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Stuff for Colab ...\n",
-    "import sys\n",
-    "def enable_plotly_in_cell():\n",
-    "  import IPython\n",
-    "  from plotly.offline import init_notebook_mode\n",
-    "  display(IPython.core.display.HTML('''\n",
-    "        <script src=\"/static/components/requirejs/require.js\"></script>\n",
-    "  '''))\n",
-    "  init_notebook_mode(connected=False)\n",
+    "# Download data and solutions\n",
+    "\n",
+    "import urllib.request\n",
+    "import os\n",
+    "\n",
+    "def download_data(path):\n",
+    "    if os.path.exists(path):\n",
+    "        return\n",
+    "    if not os.path.exists('data'):\n",
+    "        os.mkdir('data')\n",
+    "    if not os.path.exists('solutions'):\n",
+    "        os.mkdir('solutions')\n",
+    "    url = 'https://raw.githubusercontent.com/ualberta-rcg/python-plotting/master/notebooks/' + path\n",
+    "    output_file = path\n",
+    "    urllib.request.urlretrieve(url, output_file)\n",
+    "    print(\"Downloaded \" + path)\n",
     "\n",
-    "if 'google.colab' in sys.modules:\n",
-    "    get_ipython().events.register('pre_run_cell', enable_plotly_in_cell)\n",
-    "    !mkdir -p data\n",
-    "    !wget -P data https://raw.githubusercontent.com/ualberta-rcg/python-plotting/master/notebooks/data/gapminder_gdp_europe.csv\n",
-    "    !mkdir -p solutions\n",
-    "    !wget -P solutions https://github.com/ualberta-rcg/python-plotting/blob/master/notebooks/solutions/plotly-bar-chart-north-america.py"
+    "download_data('data/gapminder_gdp_europe.csv')\n",
+    "download_data('solutions/plotly-bar-chart-north-america.py')"
    ]
   },
   {
@@ -90,6 +90,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "fig = go.Figure()\n",
+    "\n",
     "trace0 = go.Scatter(\n",
     "    x = df.columns,\n",
     "    y = df.loc['Netherlands'],\n",
@@ -101,8 +103,9 @@
     "    name = 'France'\n",
     ")\n",
     "\n",
-    "data = [trace0, trace1]\n",
-    "py.iplot(data)"
+    "fig.add_trace(trace0)\n",
+    "fig.add_trace(trace1)\n",
+    "fig.show()"
    ]
   },
   {
@@ -118,6 +121,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "fig = go.Figure()\n",
+    "\n",
     "trace0 = go.Bar(\n",
     "    x = df.columns,\n",
     "    y = df.loc['Netherlands'],\n",
@@ -129,8 +134,9 @@
     "    name = 'France'\n",
     ")\n",
     "\n",
-    "data = [trace0, trace1]\n",
-    "py.iplot(data)"
+    "fig.add_trace(trace0)\n",
+    "fig.add_trace(trace1)\n",
+    "fig.show()"
    ]
   },
   {
@@ -150,8 +156,9 @@
     "    barmode='group'\n",
     ")\n",
     "\n",
-    "fig = go.Figure(data=data, layout=layout)\n",
-    "py.iplot(fig)"
+    "fig = go.Figure(data=[trace0, trace1],\n",
+    "                layout=layout)\n",
+    "fig.show()"
    ]
   },
   {
@@ -174,8 +181,9 @@
     "    barmode='stack'\n",
     ")\n",
     "\n",
-    "fig = go.Figure(data=data, layout=layout)\n",
-    "py.iplot(fig)"
+    "fig = go.Figure(data=[trace0, trace1],\n",
+    "                layout=layout)\n",
+    "fig.show()"
    ]
   },
   {
@@ -205,9 +213,14 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Grabbing the data:\n",
-    "!mkdir -p data\n",
-    "!wget -P data https://raw.githubusercontent.com/ualberta-rcg/python-intro/gh-pages/data/gapminder_gdp_americas.csv"
+    "import urllib.request\n",
+    "import os\n",
+    "\n",
+    "output_file = 'data/gapminder_gdp_americas.csv'\n",
+    "if not os.path.exists(output_file):\n",
+    "    url = 'https://raw.githubusercontent.com/ualberta-rcg/python-intro/gh-pages/data/gapminder_gdp_americas.csv'\n",
+    "    urllib.request.urlretrieve(url, output_file)\n",
+    "    print(\"Downloaded \" + output_file)"
    ]
   },
   {
@@ -252,7 +265,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.3"
+   "version": "3.8.6"
   }
  },
  "nbformat": 4,

notebooks/solutions/plotly-bar-chart-north-america.py

@@ -23,14 +23,11 @@
 )
 
 data = [trace0, trace1, trace2]
-layout = dict(
+layout = go.Layout(
     title = 'Per-capita GDP Growth in North America',
-    xaxis = dict(
-        title = 'Year'
-    ),
-    yaxis = dict(
-        title = 'GDP per-capita'
-    )
+    xaxis_title = 'Year',
+    yaxis_title = 'GDP per-capita'
 )
-fig = dict(data=data, layout=layout)
-py.iplot(fig)
+
+fig = go.Figure(data=data, layout=layout)
+fig.show()