Removing commas between columns in text data
5 ビュー (過去 30 日間)
古いコメントを表示
Kim Maria Damiani
2021 年 10 月 16 日
コメント済み: Kim Maria Damiani
2021 年 10 月 16 日
I have a txt file which is the ouput of a lemmatizer, in the form
Sometimes, ,, I, use, commas, .
I, like, writing, ,, I, like, reading
How can I read it into a tokenizedDocument deleting the unneccessary commas between tokens? A simple approach would be
test=readlines('/path/to/file.txt')
test=strrep(test,',','')
test=tokenizedDocument(test)
but it would remove even the commas already present in the original text, while I'd like to preserve punctuation-
0 件のコメント
採用された回答
Walter Roberson
2021 年 10 月 16 日
test = {'Sometimes, ,, I, use, commas, .'
'I, like, writing, ,, I, like, reading'};
test = regexprep(test, {'(?<=[^,]),\s', '\s*,,', '\s+\.'}, {' ', ',', '.'})
Notice we had to have a special rule for periods. You have 'use, commas' which should almost certainly translate to 'use commas' (so comma space becomes space), but after that 'commas, .' should not become 'commas .' .
To put it another way, we cannot use the rule that comma space pair is to be deleted: that works for the comma space between the word 'commas' and the period, but it does not work for the comma space pair between 'use' and 'commas': if you tried to apply that rule then 'use, commas' would merge together to 'usecommas' .
その他の回答 (1 件)
Chunru
2021 年 10 月 16 日
test = {'Sometimes, ,, I, use, commas, .'
'I, like, writing, ,, I, like, reading'};
test = regexprep(test, ',\s', ' ')
0 件のコメント
参考
カテゴリ
Help Center および File Exchange で Text Data Preparation についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!