Remove outdated code example, close #164

Author: wesm

ch05.ipynb

@@ -1336,23 +1336,14 @@
    "execution_count": 128,
    "metadata": {},
    "outputs": [],
-   "source": [
-    "returns[\"MSFT\"].corr(returns[\"IBM\"])"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 129,
-   "metadata": {},
-   "outputs": [],
    "source": [
     "returns.corr()\n",
     "returns.cov()"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 130,
+   "execution_count": 129,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1361,7 +1352,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 131,
+   "execution_count": 130,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1370,7 +1361,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 132,
+   "execution_count": 131,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1379,7 +1370,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 133,
+   "execution_count": 132,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1389,7 +1380,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 134,
+   "execution_count": 133,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1398,7 +1389,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 135,
+   "execution_count": 134,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1407,7 +1398,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 136,
+   "execution_count": 135,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1419,7 +1410,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 137,
+   "execution_count": 136,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1431,7 +1422,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 138,
+   "execution_count": 137,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1443,7 +1434,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 139,
+   "execution_count": 138,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1452,7 +1443,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 140,
+   "execution_count": 139,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1462,7 +1453,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 141,
+   "execution_count": 140,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1473,14 +1464,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 142,
+   "execution_count": 141,
    "metadata": {},
    "outputs": [],
    "source": []
   },
   {
    "cell_type": "code",
-   "execution_count": 143,
+   "execution_count": 142,
    "metadata": {},
    "outputs": [],
    "source": [