QA review

Author: craigsdennis

s2n04-manipulation-techniques.ipynb

@@ -35,8 +35,6 @@
     "import numpy as np\n",
     "import pandas as pd\n",
     "\n",
-    "from utils import render\n",
-    "\n",
     "users = pd.read_csv(os.path.join('data', 'users.csv'), index_col=0)\n",
     "transactions = pd.read_csv(os.path.join('data', 'transactions.csv'), index_col=0)\n",
     "# Pop out a quick sanity check\n",
@@ -355,9 +353,9 @@
    "source": [
     "### Appending with [`DataFrame.append`](https://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.append.html)\n",
     "\n",
-    "There is a method on `DataFrame`s that allow a way to [`append`](https://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.append.html) a new row to a new dataset. This returns a copy of the DataFrame with the new row(s) appended.\n",
+    "The `DataFrame.append`](https://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.append.html) method adds a new row to a new dataset. This method doesn't change the original dataset it returns a copy of the DataFrame with the new row(s) appended.\n",
     "\n",
-    "The index for our **`transactions`** is auto assigned, so we'll set ths **`ignore_index`** keyword argument to `True`, so it gets generated.\n"
+    "The index for our **`transactions`** is auto assigned, so we'll set the **`ignore_index`** keyword argument to `True`, so it gets generated.\n"
    ]
   },
   {
@@ -811,7 +809,7 @@
     "## Renaming Columns\n",
     "Renaming columns can be acheived using the [`DataFrame.rename`](https://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.rename.html) method.  You specify the current name(s) as the key(s) and the new name(s) as the value(s).\n",
     "\n",
-    "By default this returns a copy, but you can use the `inplace` command to change the existing `DataFrame`."
+    "By default this returns a copy, but you can use the `inplace` parameter to change the existing `DataFrame`."
    ]
   },
   {
@@ -923,9 +921,7 @@
    "source": [
     "## Deleting Columns\n",
     "\n",
-    "In addition to slicing a `DataFrame` to simply not include a specific existing column. You can also drop columns by name.\n",
-    "\n",
-    "Let's remove the two that we added, in place."
+    "In addition to slicing a `DataFrame` to simply not include a specific existing column. You can also drop columns by name. Let's remove the two that we added, in place."
    ]
   },
   {
@@ -1029,7 +1025,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "You might also seen this done using the `axis` parameter.\n",
+    "You might have seen this done before using the `axis` parameter.\n",
     "\n",
     "Let's get rid of the oddly named **`big_sender`** column. Why'd you let me name it that way?"
    ]