Re: [R] Intercepts is coming as Zero in the Mixed Models
arunkumar akpbond007 at gmail.com writes: I'm getting the intercepts of the Random effects as 0. Please help me to understand why this is coming Zero This is my R code Data- read.csv(C:/FE and RE.csv) Formula=Y~X2+X3+X4 + (1|State) + (0+X5|State) fit=lmer(formula=Formula,data=Data) ranef(fit). This question is more suited for the r-sig-mixed-models mailing list ... You are getting an estimate of zero variance because lmer is computing that as the best estimate. The reason is that it's really completely impractical to try to estimate the variance among levels of a factor with only two levels. There is more discussion of this issue at http://glmm.wikidot.com/faq#fixed_vs_random Thanks for including your data so we could see the problem. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Intercepts is coming as Zero in the Mixed Models
Hi I'm getting the intercepts of the Random effects as 0. Please help me to understand why this is coming Zero This is my R code Data- read.csv(C:/FE and RE.csv) Formula=Y~X2+X3+X4 + (1|State) + (0+X5|State) fit=lmer(formula=Formula,data=Data) ranef(fit). My sample Data State Year Y X2 X3 X4 X5 X6 S2 1960 27.8 397.5 42.2 50.7 78.3 65.8 S1 1960 29.9 413.3 38.1 52 79.2 66.9 S2 1961 29.8 439.2 40.3 54 79.2 67.8 S1 1961 30.8 459.7 39.5 55.3 79.2 69.6 S2 1962 31.2 492.9 37.3 54.7 77.4 68.7 S1 1962 33.3 528.6 38.1 63.7 80.2 73.6 S2 1963 35.6 560.3 39.3 69.8 80.4 76.3 S1 1963 36.4 624.6 37.8 65.9 83.9 77.2 S2 1964 36.7 666.4 38.4 64.5 85.5 78.1 S1 1964 38.4 717.8 40.1 70 93.7 84.7 S2 1965 40.4 768.2 38.6 73.2 106.1 93.3 S1 1965 40.3 843.3 39.8 67.8 104.8 89.7 S2 1966 41.8 911.6 39.7 79.1 114 100.7 S1 1966 40.4 931.1 52.1 95.4 124.1 113.5 S2 1967 40.7 1021.5 48.9 94.2 127.6 115.3 S1 1967 40.1 1165.9 58.3 123.5 142.9 136.7 S2 1968 42.7 1349.6 57.9 129.9 143.6 139.2 S1 1968 44.1 1449.4 56.5 117.6 139.2 132 S2 1969 46.7 1575.5 63.7 130.9 165.5 132.1 S1 1969 50.6 1759.1 61.6 129.8 203.3 154.4 S2 1970 50.1 1994.2 58.9 128 219.6 174.9 S1 1970 51.7 2258.1 66.4 141 221.6 180.8 S2 1971 52.9 2478.7 70.4 168.2 232.6 189.4 -- View this message in context: http://r.789695.n4.nabble.com/Intercepts-is-coming-as-Zero-in-the-Mixed-Models-tp3997498p3997498.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
