jisho = defaultdict(intかlist等の型)

#これで変数jishoが辞書になる

例

from collections import defaultdict

jisho = defaultdict(int)
lst = [“a”, “b”, “c”, “b”, “a”, “e”]

for key in lst:
jisho[key] += 1

print (jisho)

 例:2
<span role="presentation"><span class="cm-keyword">from</span> <span class="cm-variable">collections</span> <span class="cm-keyword">import</span> <span class="cm-variable">defaultdict</span> </span>

				1

						<span role="presentation"><span class="cm-keyword">from</span> <span class="cm-variable">collections</span> <span class="cm-keyword">import</span> <span class="cm-variable">defaultdict</span> </span>

<span role="presentation"><span class="cm-comment"># 文字列description</span></span>

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						<span role="presentation"><span class="cm-comment"># 文字列description</span></span>

<span role="presentation"><span class="cm-variable">description</span> = <span class="cm-error">\</span></span>

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						<span role="presentation"><span class="cm-variable">description</span> = <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"AFL intends to import  PVC-insulated  and  XLPE-insulated  bunched copper wire from Honduras.  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"AFL intends to import  PVC-insulated  and  XLPE-insulated  bunched copper wire from Honduras.  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"The insulated wire will be used in the U.S. in the production of automotive wire harnesses. "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"The insulated wire will be used in the U.S. in the production of automotive wire harnesses. "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"Copper strands, classifiable under subheading 7413.00, Harmonized Tariff System of the United States  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"Copper strands, classifiable under subheading 7413.00, Harmonized Tariff System of the United States  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"(HTSUS); polyvinyl chloride (PVC) pellets, classifiable under subheading 3904.21, HTSUS; and "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"(HTSUS); polyvinyl chloride (PVC) pellets, classifiable under subheading 3904.21, HTSUS; and "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"cross-link polyethylene (XLPE) pellets, classifiable under subheading 3901.30, HTSUS, all of U.S. origin will be exported to Honduras.  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"cross-link polyethylene (XLPE) pellets, classifiable under subheading 3901.30, HTSUS, all of U.S. origin will be exported to Honduras.  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"The copper strands will be annealed in the U.S. and will be wound onto reels,  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"The copper strands will be annealed in the U.S. and will be wound onto reels,  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"containing between six and 14 untwisted and non-bunched copper strands. In Honduras,  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"containing between six and 14 untwisted and non-bunched copper strands. In Honduras,  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"the strands are fed into a buncher, which arranges the strands in specific geometric orientations,  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"the strands are fed into a buncher, which arranges the strands in specific geometric orientations,  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"with specific twist lengths ( lay lengths ) based on the specifications of the end use application "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"with specific twist lengths ( lay lengths ) based on the specifications of the end use application "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"( lay plate ). The strands then enter the  compaction die  which sets the diameter and length of  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"( lay plate ). The strands then enter the  compaction die  which sets the diameter and length of  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"the specific products, resulting in the creation of  bunched wire.  By using strands of various "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"the specific products, resulting in the creation of  bunched wire.  By using strands of various "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"sizes and numbers of strands, different sizes of bunched wire are produced. It is "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"sizes and numbers of strands, different sizes of bunched wire are produced. It is "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"stated that the size of the bunched wire determines its electrical current carrying capacity  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"stated that the size of the bunched wire determines its electrical current carrying capacity  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"and physical strength. The bunched wire will contain between seven and 104 strands, with American "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"and physical strength. The bunched wire will contain between seven and 104 strands, with American "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"Wire Gauge (AWG) measurements varying between 10 and 22. It is stated that the AWG level identifies the  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"Wire Gauge (AWG) measurements varying between 10 and 22. It is stated that the AWG level identifies the  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"diameter, electrical current capacity and temperature  rating,  or maximum temperature levels within  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"diameter, electrical current capacity and temperature  rating,  or maximum temperature levels within  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"which the wire can function. From the compaction die, the bunched wire enters the  bow , which rotates "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"which the wire can function. From the compaction die, the bunched wire enters the  bow , which rotates "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"and twists the bunched wire, based on the needs of the given end use of the wire. "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"and twists the bunched wire, based on the needs of the given end use of the wire. "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"Next, the bunched wire is wound onto a reel and prepared for insulation with either PVC or XLPE.  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"Next, the bunched wire is wound onto a reel and prepared for insulation with either PVC or XLPE.  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"The compound is melted and pumped through the extruder line. In the extruder line, a  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"The compound is melted and pumped through the extruder line. In the extruder line, a  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"rotating wheel pulls the copper wire, and the compound is extruded over the wire.  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"rotating wheel pulls the copper wire, and the compound is extruded over the wire.  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"If PVC is used, the material is cooled following a controlled cooling with water,  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"If PVC is used, the material is cooled following a controlled cooling with water,  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"which solidifies the compound around the bunched wire. It is stated that PVC-insulated  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"which solidifies the compound around the bunched wire. It is stated that PVC-insulated  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"wire has a lower temperature rating and is more likely to be used in applications  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"wire has a lower temperature rating and is more likely to be used in applications  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"where it is subject to less intense heat. If XLPE is used, a steam vulcanization process  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"where it is subject to less intense heat. If XLPE is used, a steam vulcanization process  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"is required which causes a chemical reaction in the extruded XLPE, causing  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

				1

						<span role="presentation"><span class="cm-string">"is required which causes a chemical reaction in the extruded XLPE, causing  "</span> <span class="cm-operator">+</span> <span class="cm-error">\</span></span>

<span role="presentation"><span class="cm-string">"crosslinking  in the underlying polymer chain. It is stated that  crosslinking"</span></span>

				1

						<span role="presentation"><span class="cm-string">"crosslinking  in the underlying polymer chain. It is stated that  crosslinking"</span></span>

<span role="presentation">​</span>

				1

						<span role="presentation">​</span>

<span role="presentation"><span class="cm-comment"># defaultdictを定義</span></span>

				1

						<span role="presentation"><span class="cm-comment"># defaultdictを定義</span></span>

<span role="presentation"><span class="cm-variable">moji</span> = <span class="cm-variable">defaultdict</span>(<span class="cm-builtin">int</span>)<span class="cm-comment">#これが辞書になる</span></span>

				1

						<span role="presentation"><span class="cm-variable">moji</span> = <span class="cm-variable">defaultdict</span>(<span class="cm-builtin">int</span>)<span class="cm-comment">#これが辞書になる</span></span>

<span role="presentation">​</span>

				1

						<span role="presentation">​</span>

<span role="presentation"><span class="cm-comment"># 文字の出現回数を記録</span></span>

				1

						<span role="presentation"><span class="cm-comment"># 文字の出現回数を記録</span></span>

<span role="presentation"><span class="cm-keyword">for</span> <span class="cm-variable">key</span> <span class="cm-keyword">in</span> <span class="cm-variable">description</span>:</span>

				1

						<span role="presentation"><span class="cm-keyword">for</span> <span class="cm-variable">key</span> <span class="cm-keyword">in</span> <span class="cm-variable">description</span>:</span>

<span role="presentation">    <span class="cm-variable">moji</span>[<span class="cm-variable">key</span>] += <span class="cm-number">1</span></span>

				1

						<span role="presentation">    <span class="cm-variable">moji</span>[<span class="cm-variable">key</span>] += <span class="cm-number">1</span></span>

<span role="presentation">​</span>

				1

						<span role="presentation">​</span>

<span role="presentation"><span class="cm-comment"># ソートし、上位10要素を出力して下さい</span></span>

				1

						<span role="presentation"><span class="cm-comment"># ソートし、上位10要素を出力して下さい</span></span>

<span role="presentation"><span class="cm-builtin">print</span>(<span class="cm-builtin">sorted</span>(<span class="cm-variable">moji</span>.<span class="cm-property">items</span>(), <span class="cm-variable">key</span>=<span class="cm-keyword">lambda</span> <span class="cm-variable">x</span>: <span class="cm-variable">x</span>[<span class="cm-number">1</span>], <span class="cm-variable">reverse</span>=<span class="cm-keyword">True</span>)[:<span class="cm-number">10</span>])</span>

				1

						<span role="presentation"><span class="cm-builtin">print</span>(<span class="cm-builtin">sorted</span>(<span class="cm-variable">moji</span>.<span class="cm-property">items</span>(), <span class="cm-variable">key</span>=<span class="cm-keyword">lambda</span> <span class="cm-variable">x</span>: <span class="cm-variable">x</span>[<span class="cm-number">1</span>], <span class="cm-variable">reverse</span>=<span class="cm-keyword">True</span>)[:<span class="cm-number">10</span>])</span>

<span role="presentation">​</span>

				1

						<span role="presentation">​</span>

結果

[(' ', 428), ('e', 256), ('t', 170), ('i', 163), ('n', 153), ('s', 128), ('a', 124), ('r', 120), ('d', 100), ('o', 98)]

1	[(' ', 428), ('e', 256), ('t', 170), ('i', 163), ('n', 153), ('s', 128), ('a', 124), ('r', 120), ('d', 100), ('o', 98)]

DataFrame 内部結合　共通データのみ結合

DataFrameをcsvに変換

csvを作成して追加

CSVの読み込み

Jupyterの文、単語を検索

辞書の文字数カウント　collectionsモジュールのdefaultdict(型)

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