how to find the second most repeated value in vector

how to find the second most repeated value in vector x=[1 2 2 3 5 5 5] i use (mode ) to find the most repeated and frequency [m,f]=mode(x) m=5 the number repeated f=3 the freq.

now,i want to find the second repeated, can help me please

Answer 1

[Stephen23]

>> [n,bin] = hist(x,unique(x));
>> [~,idx] = sort(-n);
>> n(idx) % count instances
ans =
     3     2     1     1
>> bin(idx) % corresponding values
ans =
     5     2     1     3
>>

Answer 2

[Walter Roberson]

Delete all the copies of m out of x and take the mode again.

[Apoorva Srivastava]

% For a vector x:
mode(x(find(x ~= mode(x))))

% In general, if x is a matrix (valid from R2018b onwards)
mode(x(find(x ~= mode(x, 'all'))), 'all')

Answer 3

[Andrei Bobrov]

[g,v] = findgroups(x);
ii = accumarray(g(:),1);
jj = find(ii > 1);
out = [v(jj(2)), ii(jj(2))]

Answer 4

[alexander Mcghee]

X = [1 1 1 1 1 5 5 5] ;
m = mode(X)    % ->   m=1
X(X==m) = NaN ;
m = mode(X)    % ->   m=5

[Ambati Sathvik]

Thank you very much

Answer 5

[mary m]

thank you for all.. ^_^