1. NAME AND TITLE
STRADE: Stratified Random Design.
Joint Research Centre, ISPRA, Italy, through the OECD Nuclear Energy Agency Data Bank, Gif-sur-Yvette, France.
3. CODING LANGUAGE AND COMPUTER
Fortran IV; AMDAHL or IBM.
4. NATURE OF PROBLEM SOLVED
STRADE generates matrices of experimental designs based on the Latin Hypercube Sampling
technique, that can be applied to any kind of sensitivity analysis or system identification problem
involving a large number of input variables. The program was developed for use in reactor safety
5. METHOD OF SOLUTION
The range of each variable is subdivided into a number of intervals (strata) equal to the number
of experiments. The probability of each variable falling within a stratum is constant. The strata are
ordered into levels, and a matrix is generated so that all possible levels of each variable are taken into
account with each level appearing once in a matrix column.
6. RESTRICTIONS OR LIMITATIONS
7. TYPICAL RUNNING TIME
The sample case compiled, linked and executed in 3 CPU seconds on an IBM 3081.
8. COMPUTER HARDWARE REQUIREMENTS
The code was developed on the AMDAHL 470/V8 and tested at the NEADB on an IBM 3081.
9. COMPUTER SOFTWARE REQUIREMENTS
The VS Fortran compiler under MVS/SP was used on the IBM 3081 to execute the sample case.
A. Amendola and B. Lisanti, "STRADE (Stratified Random Design): Description and How to Use,
EUROCOPI No. 14" (December 1981).
11. CONTENTS OF CODE PACKAGE
Included are the referenced document and one (1.2MB) DOS diskette which contains the source
code plus sample problem input and output.
12. DATE OF ABSTRACT
KEYWORDS: SENSITIVITY ANALYSIS