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Accepted Solutions
As Luc already wrote, you have to iterate through your vectors, either by using a range variable, a program with a for-loop or by using vectorization.
Vectorization is quite convenient, but Prime won't allow to vectorize a comparison like AA<10 directly. But you can define a function which compares its argument with a given value and then call that function vectorized with your vector as argument.
Using a function may be convenient if you need the same or a similar comparison of a vector with a value more than once in your sheet. If the value you compare with (10 in your example) changes, you may make it the second argument of your function.
Its a matter of personal taste if you prefer the programmed if-branch or the if-function.
So you are using Prime 7.
The problem is not with returning a matrix, you are trying to compare a vector with a scalar, that's not possible. You can only compare apples with apples...
One way is iterate through the vector, comparing:
Note that you will NOT get numeric results of 00, since 00 numerically is just 0.
Another way is to compare arrays and use vectorisation, e.g.:
Success!
Luc
As Luc already wrote, you have to iterate through your vectors, either by using a range variable, a program with a for-loop or by using vectorization.
Vectorization is quite convenient, but Prime won't allow to vectorize a comparison like AA<10 directly. But you can define a function which compares its argument with a given value and then call that function vectorized with your vector as argument.
Using a function may be convenient if you need the same or a similar comparison of a vector with a value more than once in your sheet. If the value you compare with (10 in your example) changes, you may make it the second argument of your function.
Its a matter of personal taste if you prefer the programmed if-branch or the if-function.
The row and column operators return arrays (row-vectors and column vectors, respectively), even if that row or column has only a single element.
Use the index operator instead.
Stuart
It's half-past three in the morning, my brain has gone walkabout, I'm listening to Deep Purple, and I'm not wearing sunglasses.
I'm puzzled.
What I see with the function head in place of the index operator is what I'd expect to see using the index operator under vectorization. My mental model of vectorization suggests that it should be working something like:
or even iterating over the expression,
Yet that's not what I'm seeing.
What am I missing here wrt to vectorization and the index operator?
Stuart
