How can I extract a word from a vector, instead of a number?
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apples=1;
pears=2;
melons=3;
oranges=0;
w=[apples pears melons oranges];
maximum=max(w)
Instead of getting a number, I want to get a word. That is, instead of getting "maximum=3", I want to get "maximum=melons"
Thanks!
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Azzi Abdelmalek
2013-11-3
编辑:Azzi Abdelmalek
2013-11-3
Create a structure array with name and num fields.
w=struct('name',{'apples' 'pears' 'melons' 'oranges'},'num',{1 2 3 0})
fruit_names={w.name}
fruit_numbers=[w.num]
idx=max(fruit_numbers)
maximum=fruit_names{idx}
10 个评论
Azzi Abdelmalek
2013-11-4
Change this line
idx=max(fruit_numbers)
to
[idx,idx]=max(fruit_numbers)
更多回答(1 个)
Walter Roberson
2013-11-3
You cannot do that with your setup. The "w" you construct only contains values and does not track any history of what variable names were used to construct the numeric vector.
You should have a look at containers.map -- though at the moment I do not know if it can handle 0 as the index.
What I would do would be:
fruitnames = {'oranges', 'apples', 'pears', 'melons'};
w = 0 : (length(fruitnames) - 1);
maximum = fruitnames{ 1 + max(w) };
or
maximum = fruitnames{end};
Note that maximum will end up as a string for this code.
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