#5 finished "Histogramming"

sciruby-jp · Aug 5, 2016 · bfbab5b · bfbab5b
1 parent 1c19dff
commit bfbab5b
Showing 1 changed file with 176 additions and 0 deletions.
diff --git a/10-Minutes-to-daru.ipynb b/10-Minutes-to-daru.ipynb
@@ -609,6 +609,182 @@
     "df.where(df.A.gt(0.1))"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Operations"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Stats"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Performing a descriptive statistic"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 54,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<table><tr><th colspan=\"2\">Daru::Vector:70271743627320  size: 4</th></tr><tr><th> </th><th>mean</th></tr><tr><td>A</td><td>0.31512529065443395</td></tr><tr><td>B</td><td>0.27841784270495157</td></tr><tr><td>C</td><td>0.4625499649060813</td></tr><tr><td>D</td><td>0.4179949971692356</td></tr></table>"
+      ],
+      "text/plain": [
+       "\n",
+       "#<Daru::Vector:70271743627320 @name = mean @metadata = {} @size = 4 >\n",
+       "                                   mean\n",
+       "                  A 0.31512529065443395\n",
+       "                  B 0.27841784270495157\n",
+       "                  C  0.4625499649060813\n",
+       "                  D  0.4179949971692356\n"
+      ]
+     },
+     "execution_count": 54,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df.mean"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Same operation on the other axis"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 55,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<table><tr><th colspan=\"2\">Daru::Vector:70271742756420  size: 6</th></tr><tr><th> </th><th>mean</th></tr><tr><td>2013-01-01T00:00:00+00:00</td><td>0.479349875514806</td></tr><tr><td>2013-01-02T00:00:00+00:00</td><td>0.47051457350211223</td></tr><tr><td>2013-01-03T00:00:00+00:00</td><td>0.5430734609841852</td></tr><tr><td>2013-01-04T00:00:00+00:00</td><td>0.12549099883118234</td></tr><tr><td>2013-01-05T00:00:00+00:00</td><td>0.41477530974946974</td></tr><tr><td>2013-01-06T00:00:00+00:00</td><td>0.177927924570298</td></tr></table>"
+      ],
+      "text/plain": [
+       "\n",
+       "#<Daru::Vector:70271742756420 @name = mean @metadata = {} @size = 6 >\n",
+       "                                     mean\n",
+       "2013-01-01T00:00:00+    0.479349875514806\n",
+       "2013-01-02T00:00:00+  0.47051457350211223\n",
+       "2013-01-03T00:00:00+   0.5430734609841852\n",
+       "2013-01-04T00:00:00+  0.12549099883118234\n",
+       "2013-01-05T00:00:00+  0.41477530974946974\n",
+       "2013-01-06T00:00:00+    0.177927924570298\n"
+      ]
+     },
+     "execution_count": 55,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df.transpose.mean"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Apply"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Histogramming"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 56,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<table><tr><th colspan=\"2\">Daru::Vector:70271742726080  size: 10</th></tr><tr><th> </th><th>nil</th></tr><tr><td>0</td><td>1</td></tr><tr><td>1</td><td>1</td></tr><tr><td>2</td><td>4</td></tr><tr><td>3</td><td>2</td></tr><tr><td>4</td><td>4</td></tr><tr><td>5</td><td>0</td></tr><tr><td>6</td><td>5</td></tr><tr><td>7</td><td>2</td></tr><tr><td>8</td><td>6</td></tr><tr><td>9</td><td>6</td></tr></table>"
+      ],
+      "text/plain": [
+       "\n",
+       "#<Daru::Vector:70271742726080 @name = nil @metadata = {} @size = 10 >\n",
+       "    nil\n",
+       "  0   1\n",
+       "  1   1\n",
+       "  2   4\n",
+       "  3   2\n",
+       "  4   4\n",
+       "  5   0\n",
+       "  6   5\n",
+       "  7   2\n",
+       "  8   6\n",
+       "  9   6\n"
+      ]
+     },
+     "execution_count": 56,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "a = Daru::Vector.new_with_size(10){r=rand(7)}"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 57,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<table><tr><th colspan=\"2\">Daru::Vector:70271718946100  size: 6</th></tr><tr><th> </th><th>nil</th></tr><tr><td>1</td><td>2</td></tr><tr><td>4</td><td>2</td></tr><tr><td>2</td><td>2</td></tr><tr><td>0</td><td>1</td></tr><tr><td>5</td><td>1</td></tr><tr><td>6</td><td>2</td></tr></table>"
+      ],
+      "text/plain": [
+       "\n",
+       "#<Daru::Vector:70271718946100 @name = nil @metadata = {} @size = 6 >\n",
+       "    nil\n",
+       "  1   2\n",
+       "  4   2\n",
+       "  2   2\n",
+       "  0   1\n",
+       "  5   1\n",
+       "  6   2\n"
+      ]
+     },
+     "execution_count": 57,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "a.value_counts"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,