I am trying to use the levelplot function from a command file.
Here is the code:
library(sp)
library(gstat)
library(lattice)
gatherData <- read.table("~/gather.txt", header = TRUE)
grd = makegrid(gatherData$x, gatherData$y, cell.size = 5)
k <- krige(z~x+y, ~x+y, data = gatherData, newdata = grd,
Dear all,
I have point data from an irregular survey. Starting with a random
point, I would like to select as many other points as possible, so long
as the minimum inter-point distance is never below a given threshold.
I would appreciate help in finding a nice solution. Thankyou in advance.
matt
I am trying to plot a non-linear trend line along with my data. I am
sure the solution is simple; any help greatly appreciated.
Recent and historic attempts:
fit = nls((sd~a+b*exp(-c/time)+d*geology), start=list(a=1, b=1, c=10,
d=-1), model=TRUE)
plot(time, sd, col=3, main = "Regression", sub=
