Least Frequent Words in document

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Charmaine Tan
Charmaine Tan 2018-11-28
回答： Snehal 2025-1-29
If I use topkwords to find the most-frequent words, what code can I use to show the 10-least frequent words?

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回答（1 个）

Snehal
Snehal 2025-1-29
Ran in:
Hi,
I understand that you want to display the 10-least frequent words from a given set of words or sentences.
This can be achieved using the 'topkwords' function. Pass the input to 'topkwords', setting the k value to 'inf'. Then, sort the output of 'topkwords' in ascending order and display the top 10 words.
Refer to the sample code below for better understanding:
% Sample text data
textData = "This is a sample text. This text is for testing if our approach can display the least frequent words correctly or not";
% before using the ‘topkwords’ function, we need to convert the text into bag-of-words format
documents = tokenizedDocument(textData);
docs = bagOfWords(documents);
table = topkwords(docs, inf);
sortedTable = sortrows(table,'Count');
% Select the 10 least frequent words
numLeastFrequent = 10;
leastFrequentWords = sortedTable.Word(1:numLeastFrequent);
leastFrequentCounts = sortedTable.Count(1:numLeastFrequent);
% Display the 10 least frequent words and their counts
disp(leastFrequentWords);
"a" "sample" "." "for" "testing" "if" "our" "approach" "can" "display"
Refer to the following documentations for more details:
Hope this helps.

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