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I have the following code: 

model.xy <- lm(Y ~  X, Htest)

model.mx <- lm(M  ~  X, Htest)

model.yxm <- lm(Y   ~  X + M, Htest)

These regressions are doing fine (also summary view) but then when I want to check for mediation effect the code is getting an error. 

results <- mediate(model.mx, model.yxm, treat='X', mediator='M', boot=TRUE, sims=500)

The code above used to work last week and now I keep getting:

Error in mediate(model.mx, model.yxm, treat = "X", mediator = "M", boot = TRUE, : unused arguments (treat = "X", mediator = "M", boot = TRUE, sims = 500)

Can someone please tell me what might be wrong? I have the required packages and all variables exist and I have no typos.. it really worked last week. I am really confused.

Thanks!

StupidWolf
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User100009
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1 Answers1

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Try restarting R -- the mediate function probably got overwritten somewhere along the way.

Souf Ee
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