SIMSCRIPT II.5 Programming Language

Modelling Concepts
compute D = sum of LOCAL.GNP.PERCAPITA *
LOCAL.SALES.PERCAPITA
loop
let SALES.GNP.RC = (N.COUNTY*D - A*C) / (N.COUNTY*B - A**2)
loop
for every YEAR,
do
for every CAR
do
compute A = sum, B = ssq of PRICE
compute C = sum of SALES.GNP.RC
compute D = sum of PRICE*SALES.GNP.RC
loop
let RC.PRICE.RC= (N.CAR*D - A*C)/(N.CAR*B - A**2)
loop
list SALES.GNP.RC, RC.PRICE.RC and NATIONAL.GNP
stop
end
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This program reads data on auto sales and prices for different population units, and computes regression
coefficients that allow the following graphs to be drawn (figure 4-22).
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