GLMM中的置信区间

时间:2018-09-06 15:20:59

标签: r lme4 mixed-models confidence-interval

我想为响应变量的某些解释变量(称为HUNTED)生成置信区间的值。数据约为3个不同的时间周期。 但是,当我使用代码时:      图书馆(MASS)     confint(allspecies4) 我只收到错误消息(见下文)。有谁知道如何改善我的脚本,以便我可以进入置信区间? 观察:我的数据集太大了,我只添加了一部分,以便您了解其分布情况。

allspecies4<-read.csv(file= "dadosGLMM.csv", header= TRUE, sep= ";" )
attach(allspecies4)
library(lme4)
allspecies4<- glmer(HUNTED~ eco+TrophicLevel+age+ log(body_mass)+
                      habitat+ABUND + PERIOD + tabu +(1|Specie),
                    data=dadosGLMM, family=binomial)

library(MASS)
confint(allspecies4)


library(MASS)
> confint(allspecies4)
Computing profile confidence intervals ...
Error in zeta(shiftpar, start = opt[seqpar1][-w]) : 
  profiling detected new, lower deviance
In addition: Warning messages:
1: In nextpar(mat, cc, i, delta, lowcut, upcut) :
  unexpected decrease in profile: using minstep
2: In nextpar(mat, cc, i, delta, lowcut, upcut) :
  unexpected decrease in profile: using minstep
3: In nextpar(mat, cc, i, delta, lowcut, upcut) :
  unexpected decrease in profile: using minstep
4: In nextpar(mat, cc, i, delta, lowcut, upcut) :
  unexpected decrease in profile: using minstep
5: In (function (fn, par, lower = rep.int(-Inf, n), upper = rep.int(Inf,  :
  failure to converge in 10000 evaluations
6: In nextpar(mat, cc, i, delta, lowcut, upcut) :
  unexpected decrease in profile: using minstep
7: In nextpar(mat, cc, i, delta, lowcut, upcut) :
  unexpected decrease in profile: using minstep
8: In nextpar(mat, cc, i, delta, lowcut, upcut) :
  unexpected decrease in profile: using minstep
9: In FUN(X[[i]], ...) : non-monotonic profile for (Intercept)

样本数据

 Specie body_mass TrophicLevel age eco habitat PERIOD HUNTED ABUND tabu
  Cerc_mit      3.70            2  57   2       F DURING      0     2    1
  Cerc_mit      3.70            2  57   2       F  AFTER      0     3    1
  Cerc_mit      3.70            2  57   2       F BEFORE      0     4    1
  Cerc_mit      3.70            2  67   2       F DURING      1     2    1
  Cerc_mit      3.70            2  67   2       F  AFTER      0     2    1
 Chlor_cyn      3.70            2  53   2       S DURING      0     3    0
 Chlor_cyn      3.70            2  74   2       S DURING      0     3    0
 Chlor_cyn      3.70            2  30   2       S DURING      0     4    0
 Chlor_cyn      3.70            2  63   2       S DURING      0     4    0
 Chlor_cyn      3.70            2  54   2       S DURING      0     3    0
 Chlor_cyn      3.70            2  30   2       S DURING      0     4    0
 Chlor_cyn      3.70            2  30   2       S DURING      0     3    0
 Phil_mont      3.69            2  24   3       F DURING      0     3    0
 Phil_mont      3.69            2  24   3       F BEFORE      0     4    0
 Phil_mont      3.69            2  33   3       F  AFTER      1     4    0
 Phil_mont      3.69            2  33   3       F BEFORE      0     4    0
 Phil_mont      3.69            2  33   3       F DURING      0     4    0
 Phil_mont      3.69            2  43   3       F BEFORE      0     4    0
 Phil_mont      3.69            2  43   3       F DURING      0     4    0

0 个答案:

没有答案