Matplotlib

_toc.yml

@@ -44,6 +44,7 @@ parts:
         sections:
           - file: core/matplotlib/matplotlib
           - file: core/matplotlib/matplotlib-additional-topics-1
+          - file: core/matplotlib/additional-topics2
       - file: core/cartopy
         sections:
           - file: core/cartopy/cartopy

core/matplotlib/matplotlib.ipynb

@@ -22,10 +22,14 @@
     "## Overview\n",
     "We will cover the basics of plotting within Python, using the Matplotlib library, including a few different plots available within the library.\n",
     "\n",
-    "1. Create a basic line plot.\n",
-    "1. Add labels and grid lines to the plot.\n",
-    "1. Plot multiple series of data.\n",
-    "1. Plot image, contour, and filled contour plots."
+    "1. Figure and axes\n",
+    "1. Basic line plots\n",
+    "1. Labels and grid lines\n",
+    "1. Customizing colors\n",
+    "1. Subplots\n",
+    "1. Scatterplots\n",
+    "1. Displaying Images\n",
+    "1. Contour and filled contour plots."
    ]
   },
   {
@@ -182,7 +186,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Line plots\n",
+    "## Basic Line Plots\n",
     "\n",
     "Let's create a `Figure` whose dimensions, if printed out on hardcopy, would be 10 inches wide and 6 inches long (assuming a landscape orientation). We then create an `Axes`, consisting of a single subplot, on the `Figure`. After that, we call `plot`, with `times` as the data along the x-axis (independent values) and `temps` as the data along the y-axis (the dependent values).\n",
     "\n",
@@ -206,7 +210,14 @@
     "ax = fig.add_subplot(1, 1, 1)\n",
     "\n",
     "# Plot times as x-variable and temperatures as y-variable\n",
-    "ax.plot(times, temps)"
+    "ax.plot(times, temps);"
+   ]
+  },
+   {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Labels and Grid Lines"
    ]
   },
   {
@@ -337,14 +348,14 @@
     "ax.grid(True)\n",
     "\n",
     "# Add a legend to the upper left corner of the plot\n",
-    "ax.legend(loc='upper left')"
+    "ax.legend(loc='upper left');"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "### Customizing colors"
+    "## Customizing colors"
    ]
   },
   {
@@ -382,14 +393,16 @@
     "ax.grid(True)\n",
     "\n",
     "# Add a legend to the upper left corner of the plot\n",
-    "ax.legend(loc='upper left')"
+    "ax.legend(loc='upper left');"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Working with multiple panels in a figure"
+    "## Subplots\n",
+    "\n",
+    "Working with multiple panels in a figure"
    ]
   },
   {
@@ -421,7 +434,7 @@
    "metadata": {},
    "source": [
     "### Using add_subplot to create two different subplots within the figure\n",
-    "We can use the `.add_subplot()` method to add subplots to our figure! The subplot arguements are formatted as follows:\n",
+    "We can use the `.add_subplot()` method to add subplots to our figure! The subplot arguments are formatted as follows:\n",
     "`(rows, columns, subplot_number)`\n",
     "\n",
     "For example, if we want a single row, with two columns, we use the following code block"
@@ -441,7 +454,28 @@
     "\n",
     "# Create a plot for dewpoint\n",
     "ax2 = fig.add_subplot(1, 2, 2)\n",
-    "ax2.plot(times, dewpoint, color='tab:green')"
+    "ax2.plot(times, dewpoint, color='tab:green');"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "You can also use `plot.subplots()` with inputs `nrows` and `ncolumns` to initialize your subplot axes, `ax`. \n",
+    "\n",
+    "Index your axes, as in `ax[0].plot()` to decide which subplot you're plotting to."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "fig, ax = plt.subplots(nrows=1, ncols=2, figsize=(10, 6))\n",
+    "\n",
+    "ax[0].plot(times, temps, color='tab:red')\n",
+    "ax[1].plot(times, dewpoint, color='tab:green');"
    ]
   },
   {
@@ -468,7 +502,7 @@
     "# Create a plot for dewpoint\n",
     "ax2 = fig.add_subplot(1, 2, 2)\n",
     "ax2.plot(times, dewpoint, color='tab:green')\n",
-    "ax2.set_title('Dewpoint')"
+    "ax2.set_title('Dewpoint');"
    ]
   },
   {
@@ -499,7 +533,7 @@
     "ax2 = fig.add_subplot(1, 2, 2)\n",
     "ax2.plot(times, dewpoint, color='tab:green')\n",
     "ax2.set_title('Dewpoint')\n",
-    "ax2.set_xlim(110, 130)"
+    "ax2.set_xlim(110, 130);"
    ]
   },
   {
@@ -530,7 +564,7 @@
     "# Create a plot for dewpoint\n",
     "ax2 = fig.add_subplot(1, 2, 2, sharex=ax, sharey=ax)\n",
     "ax2.plot(times, dewpoint, color='tab:green')\n",
-    "ax2.set_title('Dewpoint')"
+    "ax2.set_title('Dewpoint');"
    ]
   },
   {
@@ -621,7 +655,7 @@
     "ax.set_xlabel('Temperature (surface)')\n",
     "ax.set_ylabel('Temperature (1000 hPa)')\n",
     "ax.set_title('Temperature Cross Plot')\n",
-    "ax.grid(True)"
+    "ax.grid(True);"
    ]
   },
   {
@@ -649,7 +683,7 @@
     "ax.set_xlabel('Temperature (surface)')\n",
     "ax.set_ylabel('Temperature (1000 hPa)')\n",
     "ax.set_title('Temperature Cross Plot')\n",
-    "ax.grid(True)"
+    "ax.grid(True);"
    ]
   },
   {
@@ -679,14 +713,15 @@
     "ax.set_xlabel('Temperature (surface)')\n",
     "ax.set_ylabel('Temperature (1000 hPa)')\n",
     "ax.set_title('Temperature Cross Plot')\n",
-    "ax.grid(True)"
+    "ax.grid(True);"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## imshow\n",
+    "## Displaying Images\n",
+    "\n",
     "`imshow` displays the values in an array as colored pixels, similar to a heat map.\n",
     "\n",
     "Here is some fake data to work with - let's use a bivariate normal distribution."
@@ -728,7 +763,8 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## contour/contourf\n",
+    "## Contour and Filled Contour Plots\n",
+    "\n",
     "- `contour` creates contours around data.\n",
     "- `contourf` creates filled contours around data."
    ]
@@ -747,7 +783,7 @@
    "outputs": [],
    "source": [
     "fig, ax = plt.subplots()\n",
-    "ax.contour(X, Y, Z)"
+    "ax.contour(X, Y, Z);"
    ]
   },
   {
@@ -765,7 +801,7 @@
    "source": [
     "fig, ax = plt.subplots()\n",
     "c = ax.contour(X, Y, Z, levels=np.arange(-2, 2, 0.25))\n",
-    "ax.clabel(c)"
+    "ax.clabel(c);"
    ]
   },
   {
@@ -782,7 +818,7 @@
    "outputs": [],
    "source": [
     "fig, ax = plt.subplots()\n",
-    "c = ax.contourf(X, Y, Z)"
+    "c = ax.contourf(X, Y, Z);"
    ]
   },
   {