Red-line characters

[burkmarr]

For certain characters, if they do not have the right value, they should be excluded from the analysis (or visually distinguished, e.g. by moving to a different column). Or maybe a more general way of forcing strict matching.

[burkmarr]

Further request for something along these lines from James Veitch - email 21st July 2018: I just started visualizing a worldwide key for Cyptotrama using the FSC Identikit framework. Certain characters definitively rule out some taxa, but not others. Is there a way to weight this accordingly?
I envision something like adding an asterisk on the taxa worksheet for the obligatory character state of a specific taxon. If someone chose a different character state than the one that had an asterisk, the taxon would immediately removed from consideration. I would not want to put extra weight if the character matches.

[burkmarr]

This arose out of a discussion with Matt Parratt, but it's come up a number of times before. People used to Lucid and other multi-access keys are used to stuff being ruled out entirely.

[burkmarr]

Red-line characters