mean
              Compute the mean of the elements of x.
mean(x) returns the
 mean of the elements in x defined as
 $$ {\rm mean}(x) = \bar{x} = {1\over N} \sum_{i=1}^N x_i $$
   where  is the length of the x vector.
 mean(x) returns a row vector
 with the mean of each columns in x.
 mean(x)
 operates along the first nonsingleton dimension of x.
  mean (x, dim) returns the mean along the operating
 dimension dim of x.  For dim greater than
 ndims (x), then m = x.
 mean (x, vecdim) returns the mean over the
 dimensions specified in the vector vecdim.  For example, if x
 is a 2-by-3-by-4 array, then mean (x, [1 2]) returns a
 1-by-1-by-4 array.  Each element of the output array is the mean of the
 elements on the corresponding page of x.  If vecdim indexes all
 dimensions of x, then it is equivalent to mean (x, "all").
 Any dimension in vecdim greater than ndims (x) is ignored.
 mean (x, "all") returns the mean of all the elements in x.
 The optional flag "all" cannot be used together with dim or
 vecdim input arguments.
 mean (…, outtype) returns the mean with a specified data
 type, using any of the input arguments in the previous syntaxes.
 outtype can take the following values:
 
class (x)), unless the
 input is logical in which case the output is of type double or a character
 array in which case an error is produced.
  mean (…, nanflag) specifies whether to exclude NaN values
 from the calculation, using any of the input argument combinations in
 previous syntaxes.  By default, NaN values are included in the calculation
 (nanflag has the value "includenan").  To exclude NaN values, set the
 value of nanflag to "omitnan".
See also: trimmean, median, mad, mode
Source Code: mean