How to map a scalar to a vector?

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Sanjana Sankar 2019-7-31

评论： Sanjana Sankar 2019-8-1

I want to map a letter to a a vector.

Example: a is mapped to [ 0 0 0 0 1]

b ia mapped to [0 0 0 1 0] and so on.

The containers.Map function does not help me with this regard. Is there any other way to do the mapping?

Thanks in advance!

Walter Roberson 2019-7-31

Map = dec2bin(('a' :'z') - 'a' + 1, 5);
Word = 'hello' ;
Map(Word(:) - 'a' + 1,:)

Walter Roberson 2019-7-31

Create a character vector that contains all of the permitted characters. You can build it in pieces using [] if that helps.

Then

Map = dec2bin(1:numel(PermittedChars)) ;
[~, idx] = ismember(Word, PermittedChars);
Result = Map(idx, :);

Sanjana Sankar 2019-8-1

Thanks a lot!

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