{
"cells": [
{
"cell_type": "markdown",
"id": "38aececf",
"metadata": {},
"source": [
"# pandas: Sorting"
]
},
{
"cell_type": "code",
"execution_count": 1,
"id": "9da58f4c",
"metadata": {
"execution": {
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"hide-output",
"scroll-output"
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},
"outputs": [],
"source": [
"import pandas as pd"
]
},
{
"cell_type": "markdown",
"id": "65dd3025",
"metadata": {},
"source": [
"## Loading data into Pandas DataFrame\n",
"The dataset is from [Kaggle - Pokemon](https://www.kaggle.com/datasets/abcsds/pokemon)."
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "45408077",
"metadata": {
"execution": {
"iopub.execute_input": "2025-09-02T18:58:31.711760Z",
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"tags": [
"hide-output",
"scroll-output"
]
},
"outputs": [],
"source": [
"data = pd.read_csv('data/Pokemon.csv')"
]
},
{
"cell_type": "code",
"execution_count": 3,
"id": "40455394",
"metadata": {
"execution": {
"iopub.execute_input": "2025-09-02T18:58:31.717563Z",
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"
\n",
"\n",
"
\n",
" \n",
" \n",
" | \n",
" # | \n",
" Name | \n",
" Type 1 | \n",
" Type 2 | \n",
" Total | \n",
" HP | \n",
" Attack | \n",
" Defense | \n",
" Sp. Atk | \n",
" Sp. Def | \n",
" Speed | \n",
" Generation | \n",
" Legendary | \n",
"
\n",
" \n",
" \n",
" \n",
" 0 | \n",
" 1 | \n",
" Bulbasaur | \n",
" Grass | \n",
" Poison | \n",
" 318 | \n",
" 45 | \n",
" 49 | \n",
" 49 | \n",
" 65 | \n",
" 65 | \n",
" 45 | \n",
" 1 | \n",
" False | \n",
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\n",
" \n",
" 1 | \n",
" 2 | \n",
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" 60 | \n",
" 62 | \n",
" 63 | \n",
" 80 | \n",
" 80 | \n",
" 60 | \n",
" 1 | \n",
" False | \n",
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\n",
" \n",
" 2 | \n",
" 3 | \n",
" Venusaur | \n",
" Grass | \n",
" Poison | \n",
" 525 | \n",
" 80 | \n",
" 82 | \n",
" 83 | \n",
" 100 | \n",
" 100 | \n",
" 80 | \n",
" 1 | \n",
" False | \n",
"
\n",
" \n",
" 3 | \n",
" 3 | \n",
" VenusaurMega Venusaur | \n",
" Grass | \n",
" Poison | \n",
" 625 | \n",
" 80 | \n",
" 100 | \n",
" 123 | \n",
" 122 | \n",
" 120 | \n",
" 80 | \n",
" 1 | \n",
" False | \n",
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\n",
" \n",
" 4 | \n",
" 4 | \n",
" Charmander | \n",
" Fire | \n",
" NaN | \n",
" 309 | \n",
" 39 | \n",
" 52 | \n",
" 43 | \n",
" 60 | \n",
" 50 | \n",
" 65 | \n",
" 1 | \n",
" False | \n",
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\n",
" \n",
" ... | \n",
" ... | \n",
" ... | \n",
" ... | \n",
" ... | \n",
" ... | \n",
" ... | \n",
" ... | \n",
" ... | \n",
" ... | \n",
" ... | \n",
" ... | \n",
" ... | \n",
" ... | \n",
"
\n",
" \n",
" 795 | \n",
" 719 | \n",
" Diancie | \n",
" Rock | \n",
" Fairy | \n",
" 600 | \n",
" 50 | \n",
" 100 | \n",
" 150 | \n",
" 100 | \n",
" 150 | \n",
" 50 | \n",
" 6 | \n",
" True | \n",
"
\n",
" \n",
" 796 | \n",
" 719 | \n",
" DiancieMega Diancie | \n",
" Rock | \n",
" Fairy | \n",
" 700 | \n",
" 50 | \n",
" 160 | \n",
" 110 | \n",
" 160 | \n",
" 110 | \n",
" 110 | \n",
" 6 | \n",
" True | \n",
"
\n",
" \n",
" 797 | \n",
" 720 | \n",
" HoopaHoopa Confined | \n",
" Psychic | \n",
" Ghost | \n",
" 600 | \n",
" 80 | \n",
" 110 | \n",
" 60 | \n",
" 150 | \n",
" 130 | \n",
" 70 | \n",
" 6 | \n",
" True | \n",
"
\n",
" \n",
" 798 | \n",
" 720 | \n",
" HoopaHoopa Unbound | \n",
" Psychic | \n",
" Dark | \n",
" 680 | \n",
" 80 | \n",
" 160 | \n",
" 60 | \n",
" 170 | \n",
" 130 | \n",
" 80 | \n",
" 6 | \n",
" True | \n",
"
\n",
" \n",
" 799 | \n",
" 721 | \n",
" Volcanion | \n",
" Fire | \n",
" Water | \n",
" 600 | \n",
" 80 | \n",
" 110 | \n",
" 120 | \n",
" 130 | \n",
" 90 | \n",
" 70 | \n",
" 6 | \n",
" True | \n",
"
\n",
" \n",
"
\n",
"
800 rows × 13 columns
\n",
"
"
],
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" # Name Type 1 Type 2 Total HP Attack Defense \\\n",
"0 1 Bulbasaur Grass Poison 318 45 49 49 \n",
"1 2 Ivysaur Grass Poison 405 60 62 63 \n",
"2 3 Venusaur Grass Poison 525 80 82 83 \n",
"3 3 VenusaurMega Venusaur Grass Poison 625 80 100 123 \n",
"4 4 Charmander Fire NaN 309 39 52 43 \n",
".. ... ... ... ... ... .. ... ... \n",
"795 719 Diancie Rock Fairy 600 50 100 150 \n",
"796 719 DiancieMega Diancie Rock Fairy 700 50 160 110 \n",
"797 720 HoopaHoopa Confined Psychic Ghost 600 80 110 60 \n",
"798 720 HoopaHoopa Unbound Psychic Dark 680 80 160 60 \n",
"799 721 Volcanion Fire Water 600 80 110 120 \n",
"\n",
" Sp. Atk Sp. Def Speed Generation Legendary \n",
"0 65 65 45 1 False \n",
"1 80 80 60 1 False \n",
"2 100 100 80 1 False \n",
"3 122 120 80 1 False \n",
"4 60 50 65 1 False \n",
".. ... ... ... ... ... \n",
"795 100 150 50 6 True \n",
"796 160 110 110 6 True \n",
"797 150 130 70 6 True \n",
"798 170 130 80 6 True \n",
"799 130 90 70 6 True \n",
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"[800 rows x 13 columns]"
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},
"execution_count": 3,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"data"
]
},
{
"cell_type": "markdown",
"id": "96476903",
"metadata": {},
"source": [
"## Sort by 1 column, ascending"
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "2f2d5a00",
"metadata": {
"execution": {
"iopub.execute_input": "2025-09-02T18:58:31.726893Z",
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{
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" 85 | \n",
" 1 | \n",
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" \n",
" 457 | \n",
" 412 | \n",
" Burmy | \n",
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" 40 | \n",
" 29 | \n",
" 45 | \n",
" 29 | \n",
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" # Name Type 1 Type 2 Total HP Attack Defense Sp. Atk \\\n",
"600 540 Sewaddle Bug Grass 310 45 53 70 40 \n",
"136 127 Pinsir Bug NaN 500 65 125 100 55 \n",
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"source": [
"data.sort_values('Type 1').head(3)"
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{
"cell_type": "markdown",
"id": "acefbe2f",
"metadata": {},
"source": [
"## Sort by 1 column, descending"
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "ab2f9895",
"metadata": {
"execution": {
"iopub.execute_input": "2025-09-02T18:58:31.733480Z",
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{
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"371 339 Barboach Water Ground 288 50 48 43 46 \n",
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"metadata": {},
"source": [
"## Sort by multiple columns, 1 = ascending, 0 = descending"
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},
{
"cell_type": "code",
"execution_count": 6,
"id": "9b9441c9",
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"execution": {
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{
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" 231 | \n",
" 214 | \n",
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" # Name Type 1 Type 2 Total HP Attack Defense Sp. Atk \\\n",
"520 469 Yanmega Bug Flying 515 86 76 86 116 \n",
"698 637 Volcarona Bug Fire 550 85 60 65 135 \n",
"231 214 Heracross Bug Fighting 500 80 125 75 40 \n",
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"metadata": {},
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"data.sort_values(['Type 1', 'HP'], ascending=[1, 0]).head(3)"
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}
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