Count the number of times a word begins with "co" in a text using Text Analytics Toolbox

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Angelavtc
Angelavtc on 21 Apr 2022
Commented: Angelavtc on 25 Apr 2022
Dear community,
I have a pdf with news headlines, and I need to count the number of words each title has and the number of times the words starting with "co" and the word "price" appear in each title. I have not much experience using the Text Analytics Toolbox in Matlab. As far as I can see, "tokenizedDocument" already gives you the total number of words (or tokens) per headline, and "context" counts a specific word. However, I do not know how to ask Matlab to look for words starting with "co". Also, how do I get this information displayed in a table?
I leave my pdf and my code.
I really appreciate any help you can provide!
filename = "Factiva_sample_headlines_1.pdf";
str = extractFileText(filename);
textData = split(str,[newline newline]); %split the text into separate news using split
textData = textData(cellfun(@(s)isempty(regexp(s,'Page')),textData)); %Erase data related to number of page
cleanedDocuments = tokenizedDocument(textData); %Create an array of tokenized documents.
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Angelavtc
Angelavtc on 23 Apr 2022
@Stephen Sorry for the inconvenience again, but I have managed to transform the file to html format (https://drive.google.com/file/d/1Z5bW98_gWohr2appS8zKgxCC1_mlLpzc/view?usp=sharing) Now the problem is that when I use :
filename = "Factiva_1.html";
str = extractFileText(filename);
I only get one article loaded. Any idea how to make matlab read all of them and classify them by title, date and body?
Thank you very much!

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Accepted Answer

Jonas
Jonas on 21 Apr 2022
Edited: Jonas on 21 Apr 2022
are your searching for something like in this example, applied to your textData?
a={'cotrol', 'alcotro','conect','trial','co'};
cellfun(@(in) strcmp(in(1:2),'co'),a)
ans =
1×5 logical array
1 0 1 0 1
you can sum that array to get the total number of words starting with "co"
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