Displaying 4 results from an estimated 4 matches for "fish3".
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fishy
2006 Sep 21
2
R data query
Dear Sir/Madam,
I am encountering one of those alien computer momements one finds every
so often in life. See the sequence below:
> fish3.fis <-read.csv("emperor2.csv", check.names = TRUE, strip.white =
TRUE)
> colnames(fish3.fis)
[1] "Month" "Year" "FishingArea"
"SumOfTotalCatch" "CPUE"
[6] "rCPUE" "PA"...
2008 Nov 19
2
GAMM and anove.lme question
...iomass (lbloat) in 1,000
meter long intervals (elementary sampling units) from multiple transects
(each 20-30 km long, tranf) in two different lakes and three different
years.
bloat.gamm1 <- gamm(lbloat ~ s(depth), correlation=corSpher(c(30000,
0.01),form = ~ x+y|tranf, nugget=TRUE), data=fish3)
bloat.gamm2 <- gamm(lbloat ~ lakef + s(depth),
correlation=corSpher(c(30000, 0.01),form = ~ x+y|tranf, nugget=TRUE),
data=fish3)
bloat.gamm3 <- gamm(lbloat ~ lakef + s(depth, by=lakef),
correlation=corSpher(c(30000, 0.01),form = ~ x+y|tranf, nugget=TRUE),
data=fish3)
> anova.lme(...
2005 Aug 18
1
GLMM - Am I trying the impossible?
...data=fish.data, family=binomial)
Error in lmer(dead ~ Parasite * Bacteria + (1 | Tank), data = fish.data, :
Unable to invert singular factor of downdated X'X
In addition: Warning message:
Leading minor of size 4 of downdated X'X is indefinite
>
without the interaction:
> fish3.lmerPQL <- lmer(dead ~ Parasite + Bacteria + (1|Tank),
data=fish.data, family=binomial)
> anova(fish3.lmerPQL)
Analysis of Variance Table
Df Sum Sq Mean Sq Denom F value Pr(>F)
Parasite 1 0.012 0.012 157.000 0.0103 0.9192
Bacteria 1 0.058 0.058 157.000 0.0524 0.8...
2008 Nov 15
1
GAMs and GAMMS with correlated acoustic data
...8
9 nn_1 0.000000 0.067646462 20.912908 2005 87.76123 2
527495.9 4843390 9
10 nn_1 0.000000 0.006012106 26.611785 2005 87.59767 2
527606.6 4842426 10
#GAM example
bloat.gam8 <- gam(log10(yaobloaterbiom+0.00325) ~ lakef +s(depth,
by=lakef), data=fish3)
#GAMM example:
bloat.gamm1 <- gamm(log10(yaobloaterbiom+0.00325) ~ lakef + s(depth,
by=lakef), correlation=corAR1(form = ~ interval|tranf), data=fish3)
However, GAMM results from models including a wide variety of correlation
structures (corExp, CorSpher, CorLin, AR1, ARMA) produce autocor...