How do I get the program to display the most and least Freq used words? Tells me the # times used but I dont know how to get it to display the words. PLease Help!

2015 4 25
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更新时间：2015 4 25
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a =fileread('GreatExpectations.txt');
w = regexpi(a, ' ', 'split');
v = unique(w);
n = length(v);
counts = zeros(n,1);
for i=1:n
counts(i) = sum(strcmp(w, v{i}));
end
most_frequent =max(counts)
for i=1:n
counts(i) = sum(strcmp(w, v{i}));
end
least_frequent= min(counts)

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Star Strider
Star Strider 2015-4-25

0 个投票

The easiest way to do this is with accumarray:
a = fileread('GreatExpectations.txt');
w = regexpi(a, ' ', 'split');
[v,~,ic] = unique(w);
counts = accumarray(ic, 1);
imx = find(counts == max(counts));
imn = find(counts == min(counts));
fprintf(1,'\n\tMost frequent: “%s” appears %d times\n', v{imx}, counts(imx))
fprintf(1,'\n\tThere are %d that only appear one time\n\n', length(imn))
I used find rather than the second output of max and min because they only return the first index of the occurrence of the maximum or minimun while find returns them all.
The code produces:
Most frequent: “the” appears 25 times
There are 188 that only appear one time

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