what might be wrong when my gamm fit is perfectly linear despite my spline term? what might be wrong when my gamm fit is perfectly linear despite my spline term? what makes gamm fit perfectly linear what is gam fit when a gamm fit is linear, what might be wrong when my gamm fit is perfectly linear despite my spline term? why gamm fit is not linear what might be wrong when my gamm fit is perfectly linear despite my spline term? what might be wrong when my gamm fit is perfectly linear if gamm fit is linear what is wrong what makes gamm fit linear? which package has perfectly linear gamm fit what makes gamm fit linear what might be wrong when my gamm fit is perfectly linear? why is gamm fit linear which package does gamm fit in what is the gam fit function what might be the problem with my gamm fit what is gamm in math when gamm fit is perfectly linear, what would a spline term be used for?