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x VANDERMONDE Place x in stack, obtain V
n
IF ‘p<n-1’ THEN This IF is step 3 in algorithm
n Place n in stack
p 2 + Calculate p+1
FOR j Start loop, j = n-1 to p+1, step = -1
j COL− DROP Remove column, drop from stack
-1 STEP Close FOR-STEP loop
ELSE
IF ‘p>n-1’ THEN
n 1 + Calculate n+1
p 1 + Calculate p+1
FOR j Start loop with j = n, n+1, …, p+1.
x j ^ Calculate x
j
, as a list
OBJARRY Convert list to array
j COL+ Add column to matrix
NEXT Close FOR-NEXT loop
END Ends second IF clause.
END Ends first IF clause. Produces X
y OBJ ARRY Convert list y to an array
X yv Enter matrix and array as X and y
« Open subprogram 3
X yv MTREG X and y used by program MTREG
NUM If needed, converts to floating point
b Resulting vector passed as b
« Open subprogram 4
b yv Place b and yv in stack
X b * Calculate X⋅b
- Calculate e = y - X⋅b
ABS SQ DUP Calculate SSE, make copy
y ΣLIST n / Calculate ⎯y
n 1 LIST SWAP CON Create vector of n values of ⎯y
yv − ABS SQ Calculate SST
/ Calculate SSE/SST
NEG 1 + √ Calculate r = [1–SSE/SST ]
1/2
“r” TAG Tag result as “r”
SWAP Exchange stack levels 1 and 2
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