Dear Simritpal, One way to obtain degrees of freedom is to type anova(name of model).
Best regards, Shadiya Sent from my iPhone > On Sep 21, 2016, at 7:51 AM, Simritpal Malhi <malh...@uwindsor.ca> wrote: > > Thanks again Dr. Kingston! Another question - how would you obtain or > calculate degrees of freedom for glmer as it is not provided in the output? > >> On Sun, Sep 18, 2016 at 1:54 PM, John Kingston >> <jkings...@linguist.umass.edu> wrote: >> Dear Simirtpal, >> >> You need to use "glmer" not "lmer" to run such a model. >> >> Best, >> John >> >> >>> On 2016-09-18 13:41, Simritpal Malhi wrote: >>> Hello, >>> >>> I am trying to run my error analysis using a logit mixed model. I have >>> installed the lmer test package because I would like to report >>> p-values. I have attached a sample of how my data file is set-up. >>> >>> e$correct <- as.factor(e$correct) >>> >>>> erranalysis=lmer(correct~task*concrete+task*embodied+ >>> >>> task*symbolic+(1|item)+(1|subject),data=e, >>> >>> family=binomial) >>> >>> I put the dependent variable as "correct" and I added >>> "family=binomial" to specify that the "correct" dependent variable was >>> coded as 1 if the participant had an error and 0 if the participant >>> was correct. However, I am getting the following error message: >>> >>> Error in as(model, "merModLmerTest") : no method or >>> >>> default for coercing “glmerMod” to “merModLmerTes” >>> >>> In addition: Warning messages: >>> >>> 1: In lme4::lmer(formula = correct ~ task * concrete + >>> >>> task * embodied + : calling lmer with 'family' is >>> >>> deprecated; please use glmer() instead >>> >>> 2: In checkConv(attr(opt, "derivs"), opt$par, ctrl = >>> >>> control$checkConv, : Model failed to converge with >>> >>> max|grad| = 0.00205133 (tol= 0.001, component 1) >>> >>> Any help would be appreciated. Thank you for your time. >> >> -- >> John Kingston >> Professor >> Linguistics Department >> University of Massachusetts >> Integrative Learning Center N412 >> 650 N. Pleasant St. >> Amherst, MA 01003 >> 1-413-545-6833, fax -2792 >> jkings...@linguist.umass.edu >
