30 most frequent words with more than 4 letters in a text file

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Maria Elena Lazar 2021-1-18

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https://ww2.mathworks.cn/matlabcentral/answers/720270-30-most-frequent-words-with-more-than-4-letters-in-a-text-file

评论： Maria Elena Lazar 2021-1-18

I have to resolve this problem:

Read a large existing text file (you can create one by copying a large text from the browser into notepad and saving with extension .txt). Find the 30 most frequent words with more then 4 letters. (Filter out non-letters)

i've only did this:

clear all; close all; clc;

fid=fopen('text.txt');

text=fread(fid,1000000,'uint8=>char')';

fclose(fid);

How could I finish the problem?

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回答（1 个）

Cris LaPierre 2021-1-18

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https://ww2.mathworks.cn/matlabcentral/answers/720270-30-most-frequent-words-with-more-than-4-letters-in-a-text-file#answer_600575

See the Analyze Text Data with String Arrays example.

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Maria Elena Lazar 2021-1-18

Thank you!

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类别

MATLAB Language Fundamentals Data Types Characters and Strings String Parsing

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