Displaying 4 results from an estimated 4 matches for "total_mg".
2010 May 17
1
Help with RandomForest
...3 TN 32.665
1 <NA>
2 4 5 TN 12.310
1 <NA>
3 6 7 BD 0.125
1 <NA>
4 8 9 Total_Mg 4218.000
1 <NA>
5 10 11 LOI 92.475
1 <NA>
6 12 13 Total_Mg 831.000 1
<NA>
This is where I'm searching for a procedure to accomplish that. If anyone
has a pro...
2010 Feb 05
2
glm models with more than one response
...ties 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-numeric argument to binary operator
In addition: Warning message:
In mode...
2010 Jun 21
2
ctree
...iodAverage + DCHydroDryAve +
threeDayWaterDepthMinAve + threeDayWaterDepthMaxAve + sevenDayDryFreqAve +
sevenDayWaterDepthMaxAve + sevenDayWaterDepthMinAve +
seventeenDayWaterDepMaxAve + seventeenDayWaterDepMinAve +
thirtyoneDayWaterDepthMaxAve + wetIntensityAve + BulkDensity + LOI + TP +
TN + TC + Total_Mg, data = Marsh)
plot(Marshct)
Working in Windows XP with R2.11.1 (2010-05-31)
Thanks
Steve
Steve Friedman Ph. D.
Spatial Statistical Analyst
Everglades and Dry Tortugas National Park
950 N Krome Ave (3rd Floor)
Homestead, Florida 33034
Steve_Friedman at nps.gov
Office (305) 224 - 4282
Fax...
2010 Jun 25
1
variograms and kriging
...develop variograms and kriged surfaces from a point file. Here is
what I've done so far.
library(gstat) # also loads library(sp)
library(lattice)
soilpts$x <- soilpts$UTM_X
soilpts$y <- soilpts$UTM_Y
soil.dat <- subset(soilpts, select=c(x, y, Area, BulkDensity, LOI, TP, TN,
TC, Total_Mg))
dim(soil.dat)
[1] 1292 7
coordinates(soil.dat) <- ~ x+y
gridded(soil.dat) <- TRUE
Warning messages:
1: In points2grid(points, tolerance, round, fuzz.tol) :
grid has empty column/rows in dimension 1
2: In points2grid(points, tolerance, round, fuzz.tol) :
grid has empty column/ro...