The error message (and the coercion dot where you wire 'width' to the function) give you some good hints. The online help for the function will further tell you that the 'width' value should be in terms of # of samples rather than time in seconds.
The next problem is that your call to Equi-Ripple BandStop outputs an empty array. I'm not exactly sure why offhand and will let others take it from here. But in general, you should be paying attention to the error outputs of any functions you call.
-Kevin P
CAUTION! New LabVIEW adopters -- it's too late for me, but you *can* save yourself. The new subscription policy for LabVIEW puts NI's hand in your wallet for the rest of your working life. Are you sure you're *that* dedicated to LabVIEW? (Summary of my reasons in this post, part of a voluminous thread of mostly complaints starting here).
