Buyin Positive (buyin_pos)
Contents
Buyin Positive. Number of scaled components of a vector exceeding threshold_1 and below threshold_2
Syntax
buyin_pos(w, matrix) |
short call |
buyin_pos_name(w, matrix) |
call with optional name |
Parameters
matrix is a PSG matrix:
where the header row contains names of variables. Other rows contain numerical data, 
. The second numerical row is optional. If the second numerical row is not present, then, by default, all values of 
are equal to 1.
 | is a threshold value. |
Mathematical Definition
Buyin Positive function is calculated as follows
,
where
is small threshold value,
is an argument of Buyin Positive function.
Remarks
It is recommended to select the multiplier (the second numerical) row equal to the unit vector and 
. For instance if decision variables are measured in thousands than 
.
Example
See also
Cardinality Positive, Cardinality Negative, Cardinality, Buyin Negative, Buyin, Fixed Charge Positive, Fixed Charge Negative, Fixed Charge