Regression: If a variable contains all zero then code breaks

var A=[[1,2,0],
        [1,1,0],
        [1,-2,0],
        [1,3,0],
        [1,-10,0],
        [1,4,0],
        [1,10,0],
        [1,3,0],
        [1,4,0]];
var b=[1,-2,3,4,-5,6,7,-8,9];
var model=jStat.models.ols(b,A);

Try to run this and then the code will break.

[trevnorris]

I’ve done some investigation and implementing this reliably will take some time. I was also thinking to add a throwOnNaN() option that will throw (like it currently does) when a NaN would be returned. Mainly to help debugging.

[trevnorris]

@samipjain What about returning NaN? I think that would indicate the input parameters aren’t valid.