Warnung: Error in : 'lower_bound' must be a matrix of N times 3 numerical values.
3: runApp
2: print.shiny.appobj
1: <Anonymous>
fix:
upon submission, verify that the respective input-value has at least one entry. If check fails, throw an ERROR-shinyNotification and ask the user to retry with at least a single spectrum selected.
Error-message in console:
fix:
upon submission, verify that the respective input-value has at least one entry. If check fails, throw an ERROR-shinyNotification and ask the user to retry with at least a single spectrum selected.