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   "source": [
    "# Exercise 2.1: Plotting with Palmer penguins\n",
    "\n",
    "[Data set download](https://s3.amazonaws.com/bebi103.caltech.edu/data/penguins_subset.csv)\n",
    "\n",
    "<hr />"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "import pandas as pd"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<hr >\n",
    "\n",
    "In a previous exercise, you tidied a subset of the [Palmer penguins data set](https://s3.amazonaws.com/bebi103.caltech.edu/data/penguins_subset.csv). To do that, you did the following."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "df = pd.read_csv('../data/penguins_subset.csv', header=[0, 1])\n",
    "\n",
    "df_tidy = df.stack(\n",
    "    level=0\n",
    ").sort_index(\n",
    "    level=1\n",
    ").reset_index(\n",
    "    level=1\n",
    ").rename(\n",
    "    columns={\"level_1\": \"species\"}\n",
    ")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Now, use that tidied data set to make a scatter plot of bill length versus flipper length with the glyphs colored by species. "
   ]
  }
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