Matlab help — How to replace a word using findstr?

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TL;DR
How to replace a word using findstr
Matlab help!
Hello
I want to create a sentence 2

sen1: I love flower
str1: love
str2: hate

How can I create sen2= "I hate flower" using findstr and array concatenation?
 

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In any case, for reliable use in large documents, you should do something to only replace whole words and to match regardless of capitalization. I am sure that MATLAB has some regular expressions to allow that.
 
There is an extrensive documentation from Matlab on strings here which should cover everything you need. Take a look at strrep for example.
 
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