Example: Function call: ltranche(matrix_tranche,matrix_tparam).

 

matrix_tranche:

 

x1

x2

x3

x4

2

1

1

2

4

-5

8

3

-8

-4

1

4

3

-6

0

-10

 

vector_tparam:

 

value

-5

5

 

 

The matrix_tranche is in file matrix_tranche.txt in PSG Matrix format (see, PSG Matrix in General (Text) Format).

The vector_tparam is in file vector_tparam.txt in PSG Vector format (see, PSG Vector in General (Text) Format).

 

Ltranche is calculated at point_1:

 

component_name

value

x1

x2

x3

x4

1

1

1

1

 

The point point_1 is in file point_1.txt (see, PSG Point).

 

To calculate logistic at point_1 run problem in file problem_ltranche_test.txt (see, Calculate Problem):

 

 calculate

Point: point_1

Value:

ltranche(matrix_tranche,vector_tparam)

 

Value of ltranche(matrix_tranche,vector_tparam) at point_1 is vector:

 

value

-1

5

-5

1

 

You may compare this vector of scenarios with the vector calculated on the same matrix using Loss function:

 

 calculate

Point: point_1

Value:

 L(matrix_tranche)

 

Value of L(matrix_tranche) at point_1 is vector:

 

value

-1

14

-10

1

 

Values greater than 5 and less than -5 are replaced with 5 and -5 correspondingly.

 

Files problem_ltranche_test.txt, matrix_tranche.txt, vector_tparam.txt, and point_1.txt are in folder .\Aorda\PSG\Examples\Functions\ltranche_test.