Syntax
Logistic function applied to a Linear function:
logistic(matrix) |
short call; |
logistic_name(matrix) |
call with optional name. |
Logistic function applied to Sum of Splines Operator:
logistic(spline_sum(matrix_param, matrix_data, matrix_knots)) |
short call; |
logistic_name(spline_sum(matrix_param, matrix_data, matrix_knots)) |
call with optional name. |
Parameters
matrix is a Matrix of Scenarios:
Note. The scenario_probability, and scenario_benchmark columns may be included in matrix but are not used in calcuations.
matrix_param, matrix_data, and matrix_knots are parameters of Sum of Splines Operator.
Mathematical Definition
1. Logistic function applied to a Linear function is a vector function with components:
, ,
where , .
Remarks
In order to include the intercept in the polynomial , one should assign . In this case, the matrix of scenarios should be set as follows:
.
2. Logistic function applied to Sum of Splines Operator is a vector function with components:
, ,
where , described in Sum of Splines Operator. One Independent Factor.
Example
See also
Loss, Gain, Sum of Splines Operator, Logarithms Exponents Sum