In Matlab, how can you code that if a string has any of a certain set of specific words, to replace them with a different word. For example, the first set of "problem" words, {'Joe' 'coffee' and 'chocolate' } are found from text file 1 and their replacement words are found from text file 2 in the format of the problem word first followed by the replacement (< problemword >: < replacement >). Each text file can have these words multiple times in them throughout the file and they can be on the same line as well. I made a switch case, but I don't know how to actually find where these words are and replace the words with the replacement words after pulling them out of text file 2.