min

Syntax

min(X)

Arguments

X is a scalar/vector/matrix.

Y is an optional parameter, which can be a scalar, a vector of the same length as X or a matrix.

Details

For one input:

As with all aggregate functions, NULL values are not included in the calculation.

For two inputs:

If Y is a scalar, compare it with each element in X, replace the element in X with the smaller value.
If Y and X are of the same type and length, compare the corresponding elements of them and return a vector containing each smaller value.

Note: Before version 1.30.20/2.00.8, the function min compares the values of temporal types by converting them into LONG values;

Since version 1.30.20/2.00.8, DolphinDB has changed the handling of temporal types:

If X and Y are temporal scalars with different levels of time granularity, the coarser-grained value is converted to the finer granularity for comparison.
If X and/or Y is a vector, matrix, or table, the compared elements must be of the same temporal type.

Examples

$ min(1 2 3);
1;

$ min(2.0 1.1 0.1 NULL);
0.1

$ m=matrix(1 2 3, 4 5 6);
$ m;

$ min(m);
[1,4]

$ min(1 2 3, 2)
1 2 2

$ n = matrix(1 1 1, 5 5 5)
$ n;

$ min(m, n);

Related function: mmin