Question

I have a 500×1 cell aray and each row has a certain word in it. How can I count how many occurences of words there is and display it and also display the percentage of each occurence.

For example

The occurence of these words is:

Ans =

     200 Green
     200 Red
     100 Blue

The percentage of these words:

Ans = 

     40% Green
     40% Red
     20% Blue

Answer 1

The idea is that strcmpi compares cell matrices elementwise. This can be used to compare the input names to the unique names in the input. Try the code below.

% generate some input
input={'green','red','green','red','blue'}';

% find the unique elements in the input
uniqueNames=unique(input)';

% use string comparison ignoring the case
occurrences=strcmpi(input(:,ones(1,length(uniqueNames))),uniqueNames(ones(length(input),1),:));

% count the occurences
counts=sum(occurrences,1);

%pretty printing
for i=1:length(counts)
    disp([uniqueNames{i} ': ' num2str(counts(i))])
end

I leave the percentage calculation to you.