How to count the number of letter case changes in a string array

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If i had a string like 'hfeHDdheD' for example. The case changes 3 times. How would i get matlab to take any string and have it tell me how many case changes there are?
I thought maybe I could have it be into a logical array of upper and lower case but i'm not sure how to count when it changes from 0 to 1 and then 1 to 0

Answers (1)

madhan ravi
madhan ravi on 8 Nov 2020
Edited: madhan ravi on 8 Nov 2020
c = 'hfeHDdheD';
nnz(diff(ismember(c, 'A':'Z')))

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