Error "'what' must be a character string or a function" using lme4::glmer in R -


this question has answer here:

i got following error message using example lme4::glmer:

>require(lme4) > (gm1 <- glmer(cbind(incidence, size - incidence) ~ period + (1 | herd), +               data = cbpp, family = binomial)) error in do.call(new, c(list(class = "glmresp", family = family), ll[setdiff(names(ll),  :    'what' must character string or function

i hunted around , can't figure out what's wrong. have idea?

(posted answer clarity.)

i can't reproduce far: i've tried replicate loaded-package environment far can.

pkgs <- c("lme4","matrix","psych","plyr","car",       "rms","sparsem","hmisc","formula","survival",       "pscl","vcd","gam","coda","lattice",       "mvtnorm","mass","gdata","mice","rcpp",       "ggplot2","vimcom","setwidth") sapply(pkgs,library,character.only=true) sessioninfo() ## attached base packages: ## [1] splines   grid      stats     graphics  grdevices utils     datasets  ## [8] methods   base      ##  ## other attached packages: ##  [1] setwidth_1.0-3   vimcom_0.9-93    ggplot2_0.9.3.1  mice_2.21        ##  [5] rcpp_0.11.0      gdata_2.13.2     pscl_1.04.4      vcd_1.3-1        ##  [9] gam_1.09.1       coda_0.16-1      mvtnorm_0.9-9997 mass_7.3-30      ## [13] rms_4.1-3        sparsem_1.03     hmisc_3.14-3     formula_1.1-1    ## [17] survival_2.37-7  car_2.0-19       plyr_1.8.1       psych_1.4.2.3    ## [21] lme4_1.0-6       matrix_1.1-2-2   lattice_0.20-27  ##  ## loaded via namespace (and not attached): ##  [1] cluster_1.14.4      colorspace_1.2-4    dichromat_2.0-0     ##  [4] digest_0.6.4        gtable_0.1.2        gtools_3.3.1        ##  [7] labeling_0.2        latticeextra_0.6-26 minqa_1.2.3         ## [10] munsell_0.4.2       nlme_3.1-113        nnet_7.3-7          ## [13] proto_0.3-10        randomforest_4.6-7  rcolorbrewer_1.0-5  ## [16] reshape2_1.2.2      rpart_4.1-6         scales_0.2.3        ## [19] stringr_0.6.2       tools_3.1.0          gm1 <- glmer(cbind(incidence, size - incidence) ~ period + (1 | herd),           data = cbpp, family = binomial)

(works.) can make break if define variable called new:

new <- 123 gm1 <- glmer(cbind(incidence, size - incidence) ~ period + (1 | herd),           data = cbpp, family = binomial)  ## error in do.call(new, c(list(class = "glmresp", family = family), ll[setdiff(names(ll),  :  ##  'what' must character string or function

(i thought bug fixed in v. 1.0-6, guess fixed subsequently ...)

if define function called new breaks differently. if remove new works again (as described).

can please try (1) rm("new") , (2) starting clean session?

unless else (preferably me) can reproduce error, it's going hard fix ...


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