mirror of
https://github.com/donnemartin/data-science-ipython-notebooks.git
synced 2024-03-22 13:30:56 +08:00
Seeded random for more predictability between iterations. Added snippets for setting a fill value for indices that do not overlap for arithmetic operations.
This commit is contained in:
Donne Martin
parent
418676f075
commit
45634da9ff
|
|
@ -1,7 +1,7 @@
|
|||
{
|
||||
"metadata": {
|
||||
"name": "",
|
||||
"signature": "sha256:f58e882e3019ecb243505ef140cb0aedee21ecd47d1210ca8e6b4e2281c1316e"
|
||||
"signature": "sha256:56fea349850ffa0f72e6b8900647ed0f5ede765deae5932b1a26237f03166107"
|
||||
},
|
||||
"nbformat": 3,
|
||||
"nbformat_minor": 0,
|
||||
|
|
@ -3332,6 +3332,7 @@
|
|||
"cell_type": "code",
|
||||
"collapsed": false,
|
||||
"input": [
|
||||
"np.random.seed(0)\n",
|
||||
"ser_6 = Series(np.random.randn(5),\n",
|
||||
" index=['a', 'b', 'c', 'd', 'e'])\n",
|
||||
"ser_6\n"
|
||||
|
|
@ -3344,11 +3345,11 @@
|
|||
"output_type": "pyout",
|
||||
"prompt_number": 64,
|
||||
"text": [
|
||||
"a -0.224292\n",
|
||||
"b -1.166149\n",
|
||||
"c -2.078194\n",
|
||||
"d 2.060130\n",
|
||||
"e 0.292102\n",
|
||||
"a 1.764052\n",
|
||||
"b 0.400157\n",
|
||||
"c 0.978738\n",
|
||||
"d 2.240893\n",
|
||||
"e 1.867558\n",
|
||||
"dtype: float64"
|
||||
]
|
||||
}
|
||||
|
|
@ -3359,6 +3360,7 @@
|
|||
"cell_type": "code",
|
||||
"collapsed": false,
|
||||
"input": [
|
||||
"np.random.seed(1)\n",
|
||||
"ser_7 = Series(np.random.randn(5),\n",
|
||||
" index=['a', 'c', 'e', 'f', 'g'])\n",
|
||||
"ser_7"
|
||||
|
|
@ -3371,11 +3373,11 @@
|
|||
"output_type": "pyout",
|
||||
"prompt_number": 65,
|
||||
"text": [
|
||||
"a -0.329560\n",
|
||||
"c 1.009019\n",
|
||||
"e -2.489898\n",
|
||||
"f -0.731142\n",
|
||||
"g -0.025979\n",
|
||||
"a 1.624345\n",
|
||||
"c -0.611756\n",
|
||||
"e -0.528172\n",
|
||||
"f -1.072969\n",
|
||||
"g 0.865408\n",
|
||||
"dtype: float64"
|
||||
]
|
||||
}
|
||||
|
|
@ -3386,7 +3388,7 @@
|
|||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"Adding objects results in the union of index pairs if the pairs are not the same, resulting in NAs for indices that do not overlap:"
|
||||
"Adding objects results in the union of index pairs if the pairs are not the same, resulting in NaN for indices that do not overlap:"
|
||||
]
|
||||
},
|
||||
{
|
||||
|
|
@ -3403,11 +3405,11 @@
|
|||
"output_type": "pyout",
|
||||
"prompt_number": 66,
|
||||
"text": [
|
||||
"a -0.553851\n",
|
||||
"a 3.388398\n",
|
||||
"b NaN\n",
|
||||
"c -1.069176\n",
|
||||
"c 0.366982\n",
|
||||
"d NaN\n",
|
||||
"e -2.197796\n",
|
||||
"e 1.339386\n",
|
||||
"f NaN\n",
|
||||
"g NaN\n",
|
||||
"dtype: float64"
|
||||
|
|
@ -3416,10 +3418,45 @@
|
|||
],
|
||||
"prompt_number": 66
|
||||
},
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"Set a fill value instead of NaN for indices that do not overlap:"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"collapsed": false,
|
||||
"input": [
|
||||
"ser_6.add(ser_7, fill_value=0)"
|
||||
],
|
||||
"language": "python",
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"metadata": {},
|
||||
"output_type": "pyout",
|
||||
"prompt_number": 67,
|
||||
"text": [
|
||||
"a 3.388398\n",
|
||||
"b 0.400157\n",
|
||||
"c 0.366982\n",
|
||||
"d 2.240893\n",
|
||||
"e 1.339386\n",
|
||||
"f -1.072969\n",
|
||||
"g 0.865408\n",
|
||||
"dtype: float64"
|
||||
]
|
||||
}
|
||||
],
|
||||
"prompt_number": 67
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"collapsed": false,
|
||||
"input": [
|
||||
"np.random.seed(0)\n",
|
||||
"frame_8 = DataFrame(np.random.rand(9).reshape((3, 3)),\n",
|
||||
" columns=['a', 'b', 'c'])\n",
|
||||
"frame_8"
|
||||
|
|
@ -3442,21 +3479,21 @@
|
|||
" <tbody>\n",
|
||||
" <tr>\n",
|
||||
" <th>0</th>\n",
|
||||
" <td> 0.529893</td>\n",
|
||||
" <td> 0.251433</td>\n",
|
||||
" <td> 0.111151</td>\n",
|
||||
" <td> 0.548814</td>\n",
|
||||
" <td> 0.715189</td>\n",
|
||||
" <td> 0.602763</td>\n",
|
||||
" </tr>\n",
|
||||
" <tr>\n",
|
||||
" <th>1</th>\n",
|
||||
" <td> 0.088052</td>\n",
|
||||
" <td> 0.595180</td>\n",
|
||||
" <td> 0.128917</td>\n",
|
||||
" <td> 0.544883</td>\n",
|
||||
" <td> 0.423655</td>\n",
|
||||
" <td> 0.645894</td>\n",
|
||||
" </tr>\n",
|
||||
" <tr>\n",
|
||||
" <th>2</th>\n",
|
||||
" <td> 0.237248</td>\n",
|
||||
" <td> 0.515434</td>\n",
|
||||
" <td> 0.720097</td>\n",
|
||||
" <td> 0.437587</td>\n",
|
||||
" <td> 0.891773</td>\n",
|
||||
" <td> 0.963663</td>\n",
|
||||
" </tr>\n",
|
||||
" </tbody>\n",
|
||||
"</table>\n",
|
||||
|
|
@ -3464,21 +3501,22 @@
|
|||
],
|
||||
"metadata": {},
|
||||
"output_type": "pyout",
|
||||
"prompt_number": 67,
|
||||
"prompt_number": 68,
|
||||
"text": [
|
||||
" a b c\n",
|
||||
"0 0.529893 0.251433 0.111151\n",
|
||||
"1 0.088052 0.595180 0.128917\n",
|
||||
"2 0.237248 0.515434 0.720097"
|
||||
"0 0.548814 0.715189 0.602763\n",
|
||||
"1 0.544883 0.423655 0.645894\n",
|
||||
"2 0.437587 0.891773 0.963663"
|
||||
]
|
||||
}
|
||||
],
|
||||
"prompt_number": 67
|
||||
"prompt_number": 68
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"collapsed": false,
|
||||
"input": [
|
||||
"np.random.seed(1)\n",
|
||||
"frame_9 = DataFrame(np.random.rand(9).reshape((3, 3)),\n",
|
||||
" columns=['b', 'c', 'd'])\n",
|
||||
"frame_9"
|
||||
|
|
@ -3501,21 +3539,21 @@
|
|||
" <tbody>\n",
|
||||
" <tr>\n",
|
||||
" <th>0</th>\n",
|
||||
" <td> 0.924304</td>\n",
|
||||
" <td> 0.058943</td>\n",
|
||||
" <td> 0.434582</td>\n",
|
||||
" <td> 0.417022</td>\n",
|
||||
" <td> 0.720324</td>\n",
|
||||
" <td> 0.000114</td>\n",
|
||||
" </tr>\n",
|
||||
" <tr>\n",
|
||||
" <th>1</th>\n",
|
||||
" <td> 0.730805</td>\n",
|
||||
" <td> 0.545480</td>\n",
|
||||
" <td> 0.299172</td>\n",
|
||||
" <td> 0.302333</td>\n",
|
||||
" <td> 0.146756</td>\n",
|
||||
" <td> 0.092339</td>\n",
|
||||
" </tr>\n",
|
||||
" <tr>\n",
|
||||
" <th>2</th>\n",
|
||||
" <td> 0.280603</td>\n",
|
||||
" <td> 0.703927</td>\n",
|
||||
" <td> 0.790074</td>\n",
|
||||
" <td> 0.186260</td>\n",
|
||||
" <td> 0.345561</td>\n",
|
||||
" <td> 0.396767</td>\n",
|
||||
" </tr>\n",
|
||||
" </tbody>\n",
|
||||
"</table>\n",
|
||||
|
|
@ -3523,22 +3561,22 @@
|
|||
],
|
||||
"metadata": {},
|
||||
"output_type": "pyout",
|
||||
"prompt_number": 68,
|
||||
"prompt_number": 69,
|
||||
"text": [
|
||||
" b c d\n",
|
||||
"0 0.924304 0.058943 0.434582\n",
|
||||
"1 0.730805 0.545480 0.299172\n",
|
||||
"2 0.280603 0.703927 0.790074"
|
||||
"0 0.417022 0.720324 0.000114\n",
|
||||
"1 0.302333 0.146756 0.092339\n",
|
||||
"2 0.186260 0.345561 0.396767"
|
||||
]
|
||||
}
|
||||
],
|
||||
"prompt_number": 68
|
||||
"prompt_number": 69
|
||||
},
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"Adding objects results in the union of index pairs for rows and columns if the pairs are not the same, resulting in NAs for indices that do not overlap:"
|
||||
"Adding objects results in the union of index pairs for rows and columns if the pairs are not the same, resulting in NaN for indices that do not overlap:"
|
||||
]
|
||||
},
|
||||
{
|
||||
|
|
@ -3567,22 +3605,22 @@
|
|||
" <tr>\n",
|
||||
" <th>0</th>\n",
|
||||
" <td>NaN</td>\n",
|
||||
" <td> 1.175738</td>\n",
|
||||
" <td> 0.170094</td>\n",
|
||||
" <td> 1.132211</td>\n",
|
||||
" <td> 1.323088</td>\n",
|
||||
" <td>NaN</td>\n",
|
||||
" </tr>\n",
|
||||
" <tr>\n",
|
||||
" <th>1</th>\n",
|
||||
" <td>NaN</td>\n",
|
||||
" <td> 1.325985</td>\n",
|
||||
" <td> 0.674397</td>\n",
|
||||
" <td> 0.725987</td>\n",
|
||||
" <td> 0.792650</td>\n",
|
||||
" <td>NaN</td>\n",
|
||||
" </tr>\n",
|
||||
" <tr>\n",
|
||||
" <th>2</th>\n",
|
||||
" <td>NaN</td>\n",
|
||||
" <td> 0.796037</td>\n",
|
||||
" <td> 1.424024</td>\n",
|
||||
" <td> 1.078033</td>\n",
|
||||
" <td> 1.309223</td>\n",
|
||||
" <td>NaN</td>\n",
|
||||
" </tr>\n",
|
||||
" </tbody>\n",
|
||||
|
|
@ -3591,16 +3629,84 @@
|
|||
],
|
||||
"metadata": {},
|
||||
"output_type": "pyout",
|
||||
"prompt_number": 69,
|
||||
"prompt_number": 70,
|
||||
"text": [
|
||||
" a b c d\n",
|
||||
"0 NaN 1.175738 0.170094 NaN\n",
|
||||
"1 NaN 1.325985 0.674397 NaN\n",
|
||||
"2 NaN 0.796037 1.424024 NaN"
|
||||
"0 NaN 1.132211 1.323088 NaN\n",
|
||||
"1 NaN 0.725987 0.792650 NaN\n",
|
||||
"2 NaN 1.078033 1.309223 NaN"
|
||||
]
|
||||
}
|
||||
],
|
||||
"prompt_number": 69
|
||||
"prompt_number": 70
|
||||
},
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"Set a fill value instead of NaN for indices that do not overlap:"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"collapsed": false,
|
||||
"input": [
|
||||
"frame_8.add(frame_9, fill_value=0)"
|
||||
],
|
||||
"language": "python",
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"html": [
|
||||
"<div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
|
||||
"<table border=\"1\" class=\"dataframe\">\n",
|
||||
" <thead>\n",
|
||||
" <tr style=\"text-align: right;\">\n",
|
||||
" <th></th>\n",
|
||||
" <th>a</th>\n",
|
||||
" <th>b</th>\n",
|
||||
" <th>c</th>\n",
|
||||
" <th>d</th>\n",
|
||||
" </tr>\n",
|
||||
" </thead>\n",
|
||||
" <tbody>\n",
|
||||
" <tr>\n",
|
||||
" <th>0</th>\n",
|
||||
" <td> 0.548814</td>\n",
|
||||
" <td> 1.132211</td>\n",
|
||||
" <td> 1.323088</td>\n",
|
||||
" <td> 0.000114</td>\n",
|
||||
" </tr>\n",
|
||||
" <tr>\n",
|
||||
" <th>1</th>\n",
|
||||
" <td> 0.544883</td>\n",
|
||||
" <td> 0.725987</td>\n",
|
||||
" <td> 0.792650</td>\n",
|
||||
" <td> 0.092339</td>\n",
|
||||
" </tr>\n",
|
||||
" <tr>\n",
|
||||
" <th>2</th>\n",
|
||||
" <td> 0.437587</td>\n",
|
||||
" <td> 1.078033</td>\n",
|
||||
" <td> 1.309223</td>\n",
|
||||
" <td> 0.396767</td>\n",
|
||||
" </tr>\n",
|
||||
" </tbody>\n",
|
||||
"</table>\n",
|
||||
"</div>"
|
||||
],
|
||||
"metadata": {},
|
||||
"output_type": "pyout",
|
||||
"prompt_number": 71,
|
||||
"text": [
|
||||
" a b c d\n",
|
||||
"0 0.548814 1.132211 1.323088 0.000114\n",
|
||||
"1 0.544883 0.725987 0.792650 0.092339\n",
|
||||
"2 0.437587 1.078033 1.309223 0.396767"
|
||||
]
|
||||
}
|
||||
],
|
||||
"prompt_number": 71
|
||||
}
|
||||
],
|
||||
"metadata": {}
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user