:) I am quite new here so I hope I can present my problem in an understandable way: I conducted the following MANCOVA and received the output that there is a significant effect on the Independent variable as well as on a covariate (attached the whole code).
But when I try to conduct some post-hoc tests, I only receive an error message by R being:
Fehler in mcp2matrix(model, linfct = linfct) : Variable(s) ‘OptIn.DE.WGN.1’‘OptIn.DE.WGN.2’‘OptIn.DE.WGN.3’‘OptIn.DE.WGN.4’‘OptIn.DE.WGN.5’ have been specified in ‘linfct’ but cannot be found in ‘model’! ** I don't get why the variables should not be found in the model, as I used the same when conducting my Mancova.
Would appreciate help so much - thanks in advance!! Best
MAncova Code: Mancova_Switch_DEU <- manova(cbind(OptOut.DE.WGN.1, OptOut.DE.WGN.2, OptOut.DE.WGN.3, OptOut.DE.WGN.4, OptOut.DE.WGN.5) ~ cbind(OptIn.DE.WGN.1, OptIn.DE.WGN.2, OptIn.DE.WGN.3, OptIn.DE.WGN.4, OptIn.DE.WGN.5) + Anxiety_Avg + Trust + Umfeld + Krankheit + Gesundheitszustand + Respo1 + Respo2 + Respo3 + Alter + Geschlecht + Kinder + Bildung + Religion + FamilyAvg + Altruismus_Avg + Respo1, data = MA_Gesamt_neu)"
IV: cbind(OptIn.DE.WGN.1, OptIn.DE.WGN.2, OptIn.DE.WGN.3, OptIn.DE.WGN.4, OptIn.DE.WGN.5) (significant) Covariate: Respo3
Post-Hoc test: posthoc <- glht(Manova_Switch_DEU, linfct = mcp(OptIn.DE.WGN.1 = "Tukey", OptIn.DE.WGN.2 = "Tukey", OptIn.DE.WGN.3 = "Tukey", OptIn.DE.WGN.4 = "Tukey", OptIn.DE.WGN.5 = "Tukey"))
Conduct a Mancova and now try to conduct post-hoc test --> error message
