How to select the first letter of every word

2015 12 5
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更新时间：2015 12 10
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I have no idea how I would go about doing this
Input: I like eating pizza Output: Ilep

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Mohammad Abouali
Mohammad Abouali 2015-12-5
编辑：Mohammad Abouali 2015-12-5

1 个投票

str='I like eating pizza';
str2=cellfun(@(c) c(1),strsplit(str))

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Krish Desai
Krish Desai 2015-12-7
Any ways to do this with loops? Just another way of doing it...I tried running this but it failed multiple hidden tests.
Walter Roberson
Walter Roberson 2015-12-7
You will need to define "word". What is the first letter of the word "23skidoo" ? What is the first letter of each word in the question "What is the first letter of each word in the question "What is the first letter of each word in the question?"" ? What is the first letter of each word of "3 o'clock AM" ?
Mohammad Abouali
Mohammad Abouali 2015-12-8
编辑：Mohammad Abouali 2015-12-8
I am not sure what is "multiple hidden tests". But here is the loop form of the code:
str='I like eating pizza';
splittedStr=strsplit(str);
str2='';
for idx=1:numel(splittedStr)
str2(end+1)=splittedStr{idx}(1);
end
Krish Desai
Krish Desai 2015-12-10
Walter, In 23skidoo, the first letter would be the s. In "3 o'clock AM" the output should be oA.
Krish Desai
Krish Desai 2015-12-10
Also how would I be able to eliminate extra spaces? For instance if the input was ' I like eating pizza'?
Krish Desai
Krish Desai 2015-12-10
Function strtrim to fix this problem.

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