Type control

[salvomic]

Han,
so it goes better:

Code:


EXPORT ANOVA(a)
...
BEGIN
CASE
IF (SIZE(a)==0) THEN a:=0.05; END;
IF (TYPE(a)<>0) THEN ANOVA_help(); RETURN("Usage: ANOVA(a)");  END;
IF (a <=0 OR a>= 1) THEN RETURN("Significance level must be > 0 AND <1"); END;
DEFAULT
END; // case
...

I control that "a" be a number (or give the user a function with help), and if it's a number that its value be in the interval.
But SIZE(a)==0 still doesn't work.
I thought to make "a" parameter option, but I don't remember if it's possible in EXPORT myfunction()... or not.
i.e. EXPORT ANOVA(a:=0.05) doesn't work.

Salvo