Find a letter position within a word.

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JEE
JEE 2018-4-18
评论： Walter Roberson 2018-4-20
I need to right a function that will take in a word and a letter. Then return a list of all the positions in word where the letter exists. I need to figure out how to do this without using any built in functions. So far I have :
function result = find_letter_positions(word,letter)
indexes = [];
for i = 1:length(word)
if word(i) = = letter
after this I am unsure of where to go
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Walter Roberson
Walter Roberson 2018-4-20
Please do not close Questions that have an Answer

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Birdman
Birdman 2018-4-18

This might help you:

function indexes = find_letter_positions(word,letter)
indexes = zeros(1,numel(word));
for i = 1:numel(word)
    if word(i)==letter
        indexes(i)=i;
    end
end
indexes=indexes(indexes~=0);
end
  1 个评论
Stephen23
Stephen23 2018-4-18
Note that zeros, numel, and indexing (using subsref) are all inbuilt functions.

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