Hi, investing a sys::IndexErr in FWT I noticed the following in fwt::Table.fan:

359  // View -> Model
360  Int rowViewToModel(Int i) { rows[i] }
361  Int colViewToModel(Int i) { cols[i] }
362  Int[] rowsViewToModel(Int[] i) { i.map |x->Int| { rows[x] } }
363  Int[] colsViewToModel(Int[] i) { i.map |x->Int| { rows[x] } }

where I figure that last line should be:

363  Int[] colsViewToModel(Int[] i) { i.map |x->Int| { cols[x] } }

(My Err is actually on line 362, so the above may not be causing any harm!)

Thanks for catching that - I pushed a fix. Not sure we have any code actually using that method