Hi all,
I'm having some troubles with the Quantreg package. I am using R
version 2.10.0, and have downloaded the most recent version of Quantreg
(4.44) and SparseM (0.83 - required package). However, when I try to
run an analysis (e.g. fit1-rq(y~x, tau=0.5)) I get an error message
saying
Hi,
I have a numeric pixel image which I would like to divide into factors
for analysis in Spatstat. I have found that I can use cut.im() function
to divide the range of pixel values into a series of equal length
intervals (e.g. if my pixels values range from 0 to 60,
cut.im(X.im,breaks=2)
Hi,
I have several datasets recording the size of individuals shrubs. I
would like to test various distribution functions to see which fits my
data most closely. So far I have used the fitdistr tool in the MASS
package to get the parameter estimates for the best-fit lognormal,
exponential and
Hi all,
I'm using spatstat to investigate the spatial structure of an arid shrub
population. The first-order intensity of my data does not appear to be
homogenous, so I would like to use inhomogeneous techniques. I realise
there is a inhomogeneous K-function available in spatstat, but there
2008 05:34
To: R-help Forum
Cc: Gough Lauren; Rolf Turner
Subject: Re: [R] Spatstat help - quadratcount query
Gough, Lauren wrote:
I am using quadratcount in spatstat to divide a window containing a
point pattern into a grid of quadrats containing the intensity of
points in each quadrat
Hi all,
I am using quadratcount in spatstat to divide a window containing a
point pattern into a grid of quadrats containing the intensity of points
in each quadrat. My data is in UTM co-ordinates. My window is defined
as follows:
Dear All,
I have two questions regarding distribution fitting.
I have several datasets, all left-truncated at x=1, that I am attempting
to fit distributions to (lognormal, weibull and exponential). I had
been using fitdistr in the MASS package as follows:
fitdistr-(x,weibull)
However, this
Dear all,
I am a very new user to R (for windows) (since Monday!) so please excuse
me if I am asking an obvious question!
I am experiencing some problems with the graphics window - in short, it
keeps disappearing. i.e. I can type
x-c(1,3,6,4,9)
plot(x)
No errors are produced, but not
8 matches
Mail list logo