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Jos
Posts:
1,266
Registered:
10/24/08


Re: matrix function that compare a list of real numbers with a real number
Posted:
Nov 20, 2012 4:09 AM


"felix " <f_3lix@hotmail.com> wrote in message <k8d4le$dmc$1@newscl01ah.mathworks.com>... > I need a function which accepts as input a list of real numbers, and a real number X and which returns to the output: > ? The number of how many times the number (X) appear in the table > ? The location where this number appears in the table > ? A table that will have the value 0 in the positions where (X) appears and the value 1 in the remaining positions > ? A table(matrix) where the elements of the original matrix that is larger than the input number (X) will be replaced with the maximum number of the original table > ? A vector which will contain all the unique elements of the input table which are larger than the number(X) we gave to the entrance.
take a look at logical indexing.
tf = T = X sum(tf) find(tf) Y(~tf) = 1 etc.
~ Jos



