interaction

I created a custom confirmation window in an app with Prism Unity, WPF & Mvvm. I need help with the notifications that need to be sent back to the viewmodel. I have this in the detail record view, let's call it MyDetailView. <!-- Custom Confirmation Window --> <ie:Interaction.Triggers> <interactionRequest:InteractionRequestTrigger SourceObject="{Binding ConfirmationRequest, Mode=TwoWay}"> <mycontrols:PopupWindowAction1 IsModal="True"/> </interactionRequest:InteractionRequestTrigger> </ie:Interaction.Triggers> As shown above, I made the interaction Mode=TwoWay so that the confirmation popup

I have a list of houses and a list of animal species. houses = c(1,1,2,3,4,4,4,4,5,6,5) animals = c('cat','dog','cat','dog','rat', 'cat', 'spider', 'snake', 'cat', 'cat', 'rat') I am trying to create a function that returns an upper triangular table that indicates for each pet, the number of times that it was observed to live in the same house than the other animal species. Does it make sense? For the above example, the table should look like this (hope there's no mistake!) : dog rat spider snake cat 1 2 1 1 dog 0 0 0 rat 1 1 spider 1 Note: This function should work for any two vectors of same