Documentation 
Return minimum values in DataMatrix object
M = min(DMObj1)
[M, Indices]
= min(DMObj1)
[M, Indices, Names]
= min(DMObj1)
... = min(DMObj1,
[], Dim)
MA = min(DMObj1, DMObj2)
DMObj1, DMObj2  DataMatrix objects, such as created by DataMatrix (object constructor). 
Dim  Scalar specifying the dimension of DMObj to return the minimum values. Choices are:

M  One of the following:

Indices  Either of the following:

Names  Vector of the row names (if Dim = 1) or column names (if Dim = 2) corresponding to the minimum value in each column or each row of a DataMatrix object. 
MA  Numeric array created from the minimum elements in either of the following:

M = min(DMObj1) returns the minimum value(s) in DMObj1, a DataMatrix object. If DMObj1 contains a vector of data, M is a scalar. If DMObj1 contains a matrix of data, M is a row vector containing a minimum value in each column.
[M, Indices] = min(DMObj1) returns Indices, the indices of the minimum value(s) in DMObj1, a DataMatrix object. If DMObj1 contains a vector of data, Indices is a positive integer. If DMObj1 contains a matrix of data, Indices is a vector containing the indices for the minimum value in each column (if Dim = 1) or row (if Dim = 2). If there are multiple minimum values in a column or row, the index for the first value is returned.
[M, Indices, Names] = min(DMObj1) returns Names, a vector of the row names (if Dim = 1) or column names (if Dim = 2) corresponding to the minimum value in each column or each row ofDMObj1, a DataMatrix object. If there is more than one minimum value in a column or row, the row or column name for the first value is returned.
... = min(DMObj1, [], Dim) specifies which dimension to return the minimum values for, that is each column or each row in a DataMatrix object. If Dim = 1, returns M, a row vector containing the minimum value in each column. If Dim = 2, returns M, a column vector containing the minimum value in each row. Default Dim = 1.
MA = min(DMObj1, DMObj2) returns MA, a numeric array containing the smaller of the two values from each position of DMObj1 and DMObj2. DMObj1 and DMObj2 can both be DataMatrix objects, or one can be a DataMatrix object and the other a numeric array. They must be the same size, unless one is a scalar. MA has the same size (number of rows and columns) as the first nonscalar input.
DataMatrix  max  sum