Displaying 2 results from an estimated 2 matches for "cattail".
2010 Jun 14
1
script development for Unconditional Density and Probability estimation
...o
automatically get another metric.
Any suggestion will be greatly appreciated.
Currently running Windows XP, R 2.11.1
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Marsh <- cbind(SoilVegHydro, vegcode)
AnnualDepth <- Marsh[,'meanAnnualDepthAve']
cattail_0 <- Marsh[,'cattail'] == '0' # no need to run for 8
species, automate if possible
cattail_1 <- Marsh[,'cattail'] == '1' # yes need to run for 8
species
spbase.rate.d1 <- sum(cattail_1)/(sum(cattail_1) + sum(cattail_0) )
annualDepth.dens...
2010 Feb 05
2
glm models with more than one response
...mple point
locations. Ultimately I'd like to use the probabilities for each response
category in a simulation model such that these probabilities are used to
define a realized ecological niche.
When I try the following it works for a single response.
Typha.glm <- glm(fwc$VegType == "Cattail" ~ fwc$TP + fwc$TC + fwc$TN +
fwc$BD + fwc$LOI + fwc$Total_Mg, family = poisson)
But if I try this without specifying a specific VegType it fails.
plants.glm <- glm(fwc$VegType ~ fwc$TP + fwc$TC + fwc$TN + fwc$BD +
fwc$LOI + fwc$Total_Mg, family = poisson)
Error in y + 0.1 : non-numer...