removing words from texts with 'removeWords' ???

hi

i want to remove 150 words from 2226 texts (1x150 and 1x2226 matrixes)

i googled it and this came up

https://www.mathworks.com/help/textanalytics/ref/tokenizeddocument.removewords.html#mw_a8ddd2cf-21eb-4d3f-b921-c8e5cf7a2404

this is the code: newDocuments = removeWords(documents,words)

but when i use it in matlab it says: Undefined function or variable 'removeWords'.

i also cant find it on my matlabs search tab

is this for another version?

is there another code?

if not can you help me pelase

thank you

[dpb]

As the link indicates by containing the folder "textanalytics", this is a function in the <Text Analytics Toolbox>

You must have a license for the Toolbox to use the function.

You can do such operations with the builtin string handling functions; if we had actual sample of your dataset would be far easier to suggest specific code for the purpose.

[Kamyar Mazarei]

oh i see

sry im new to matlab didnt notice that

lets say matrix A is 2226 texts

and marix B is 150 words i want to remove

i wanted something like A=removewords(A,B)

Answer 1

[KSSV]

str1 = 'Hello world, how are you?' ;
str2 = 'how are you?' ;
str=setdiff(strsplit(str1),strsplit(str2))

str = 1×2 cell array
    {'Hello'}    {'world,'}