Type control

[salvomic]

(03-13-2015 06:14 PM)Han Wrote:  You need to use CASE and not separate IF statements. Suppose a is not a number object. Without using CASE, then your program will reach the third IF statement. However, the check IF (a<=0 OR a>=1) would not make sense and this is the cause of your error...

To avoid this, you need to use CASE blocks surrounding your IF statements so that a list input in captured by only one IF statement and then program control is passed to the point beyond the end of the CASE block (i.e. skips all other IF tests).

I should control that a value is from 0 (excluded) and 1 (excluded): (0..1)

CASE. Do you mean like so?

Code:


CASE
IF (TYPE(spar)==6 OR TYPE(a)<>0) THEN RETURN("Usage: ANOVA_list(a) a=significance level; data in Stat 1var");  END;
IF ((spar==0)) THEN RETURN("Usage: ANOVA_list(a) a=significance level; data in Stat 1var"); END;
IF (a <=0 OR a>= 1) THEN RETURN("Significance level must be > 0 AND <1"); END;
IF ((size(D1) == 0) OR (size(D1) == 0) OR (size(D3) = 0)) THEN RETURN("Statistics 1var, D1 means, D2 stddev, D3 numerosity"); END;
END; // case

A priority list should be: control if value "a" is given, then if D1, D2 and D3 are set, than if a is from 0 to 1 (non include the limits), then if a is a number and only a number...

thanks!