diff --git a/ch01/ch01.ipynb b/ch01/ch01.ipynb
index 58fa9cb5..6a507763 100644
--- a/ch01/ch01.ipynb
+++ b/ch01/ch01.ipynb
@@ -564,7 +564,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
- "version": "3.7.3"
+ "version": "3.7.1"
}
},
"nbformat": 4,
diff --git a/ch02/ch02.ipynb b/ch02/ch02.ipynb
index 29b5aa1c..5407c84c 100644
--- a/ch02/ch02.ipynb
+++ b/ch02/ch02.ipynb
@@ -59,7 +59,15 @@
"cell_type": "markdown",
"metadata": {},
"source": [
- "*The use of `watermark` is optional. You can install this IPython extension via \"`pip install watermark`\". For more information, please see: https://github.com/rasbt/watermark.*"
+ "*The use of `watermark` is optional. You can install this Jupyter extension via* \n",
+ "\n",
+ " conda install watermark -c conda-forge \n",
+ "\n",
+ "or \n",
+ "\n",
+ " pip install watermark \n",
+ "\n",
+ "*For more information, please see: https://github.com/rasbt/watermark.*"
]
},
{
diff --git a/ch03/ch03.ipynb b/ch03/ch03.ipynb
index 01e10025..ca2c1df6 100644
--- a/ch03/ch03.ipynb
+++ b/ch03/ch03.ipynb
@@ -60,7 +60,15 @@
"cell_type": "markdown",
"metadata": {},
"source": [
- "*The use of `watermark` is optional. You can install this IPython extension via \"`pip install watermark`\". For more information, please see: https://github.com/rasbt/watermark.*"
+ "*The use of `watermark` is optional. You can install this Jupyter extension via* \n",
+ "\n",
+ " conda install watermark -c conda-forge \n",
+ "\n",
+ "or \n",
+ "\n",
+ " pip install watermark \n",
+ "\n",
+ "*For more information, please see: https://github.com/rasbt/watermark.*"
]
},
{
diff --git a/ch04/ch04.ipynb b/ch04/ch04.ipynb
index 2ef250e2..6c8e0b0d 100644
--- a/ch04/ch04.ipynb
+++ b/ch04/ch04.ipynb
@@ -42,7 +42,7 @@
"output_type": "stream",
"text": [
"Sebastian Raschka \n",
- "last updated: 2019-06-16 \n",
+ "last updated: 2019-07-09 \n",
"\n",
"numpy 1.16.2\n",
"pandas 0.24.2\n",
@@ -60,7 +60,15 @@
"cell_type": "markdown",
"metadata": {},
"source": [
- "*The use of `watermark` is optional. You can install this IPython extension via \"`pip install watermark`\". For more information, please see: https://github.com/rasbt/watermark.*"
+ "*The use of `watermark` is optional. You can install this Jupyter extension via* \n",
+ "\n",
+ " conda install watermark -c conda-forge \n",
+ "\n",
+ "or \n",
+ "\n",
+ " pip install watermark \n",
+ "\n",
+ "*For more information, please see: https://github.com/rasbt/watermark.*"
]
},
{
@@ -616,7 +624,7 @@
}
],
"source": [
- "# drop rows that have less than 3 real values \n",
+ "# drop rows that have fewer than 3 real values \n",
"\n",
"df.dropna(thresh=4)"
]
@@ -767,6 +775,80 @@
"
"
]
},
+ {
+ "cell_type": "code",
+ "execution_count": 14,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n",
+ "\n",
+ "
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+ "