Displaying 20 results from an estimated 110 matches similar to: "geoR, variofit"
2013 Feb 19
1
latin hypercube sampling
Hi all,
I am attempting to use latin hypercube sampling to sample different
variable functions in a series of simultaneous differential equations.
There is very little code online about lhs or clhs, so from different
other help threads I have seen, it seems I need to create a
probability density function for each variable function, and then use
latin hypercube sampling on this pdf.
So far, I
2005 Dec 21
0
Help with Krige.conv using linear models
A majority of my data makes a kriged map perfectly using an exponential
model for the semivariogram to fit my data and then going through the
commands variofit() to define the model and then krige.conv() to use the
model to predict values in a grid. But?one set of my data appears to be
linearly correlated for the first 5000 meters and not correlated beyond
that. I have been having problems
2009 Jan 21
0
trouble switching to 'plm' from 'xtabond' and Stata
Hello,
I am switching to R from Stata and I am having particular trouble with
the transition from Stata's 'xtabond' and 'ivreg' commands to the
"plm" package. I am trying to replicate some of the dynamic panel data
work using the UK Employment data in Arellano and Bond (1991) and
available as 'EmplUK' under the 'plm' package.
I have been
2011 Apr 12
1
How to set the dimension of a matrix correctly?
Hi all,
I use kriging to interpolate the precipitation from stations, but the map of this results show lots of stripes. (please see the attachment)I think there's something wrong with the setting of the dimension of this matrix, however, I have no idea how to know or test to see if this setting is correct or not.I've tried to switch the latitude and longitude, but still got the same
2010 Jun 09
0
Fixed sill in variogram fitting (geoR)
Dear all,
I'm trying to fit a variogram model using variofit function in geoR
package. There is an option to fix the nugget but is there anyway to force
the variogram sill to equal some defined value? I'm working with
standardized longitudinal data so the process variance is 1 and I'd like
to force the sill of the variogram to reach this value (and prevent it
from going
2002 Oct 16
0
Ordinary and simple kriging
I'm performing ordinary and simple kriging from a set of non-negative
values:
>krige.control.sk<-krige.control(type.krige="sk",obj.model=my.variogram.model,beta=my.variogram.model$beta)
>sk<-krige.conv(cadiz.geo,data=amostragem.cadiz$dia1.std,locations=as.matrix(cadiz.polygrid[,c(1,2)]),krige=krige.control.sk)
krige.conv: model with constant mean
krige.conv: Kriging
2002 Oct 16
0
[Fwd: Ordinary and simple kriging]
Juan Zwolinski wrote:
>
> I'm performing ordinary and simple kriging from a set of non-negative
> values:
>
>
> >krige.control.sk<-krige.control(type.krige="sk",obj.model=my.variogram.model,beta=my.variogram.model$beta)
>
>
2011 Mar 11
0
predicting values from model function
Dear List,
I have fitted a spherical function to my variogram using "variofit(...)"
from GeoR. Now I would like to predict some data with the function
"predict(object,...)" from package stats. Does anyone know wether this
works and if it does how to do it?
Thanks a lot!
Anna
1999 Jul 14
0
hosts allow/deny not working correctly in 2.0.3 or 2.0.4b
I am having difficult getting the hosts allow/deny to work with IP ranges or
netmasks. Ideally I would prefer to use the IP/Netmask method, e.g.
111.22.33.0/255.255.255.0, because we have a flat ATM network with multiple
class C's (netmask is really 255.255.252.0). This, however, doesn't work!!
I can't do 111.22.33. either... I can't even do specific IP's, e.g.
111.22.33.44
1999 Dec 15
0
Interface binding ignores my settings in 2.0.6
I have a multi-homed server with interfaces into two VLANs (one Unix and one
NT). I need for all Samba traffic to go through the NT VLAN interface
(which is not the primary, of course). Under 2.0.5a I was able to do this
with the "Interfaces" option by specifying the NT interace first (I did not
do the "Bind Interface Only"). However, 2.0.6 seems to ignore this setting
which
2006 Jan 05
1
Memory limitation in GeoR - Windows or R?
Dear Aaron,
I am really a tool user and not a tool maker (actually an ecologist
doing some biostatistics)... so, I take the liberty of sending a copy of
this e-mail to the r-help list where capable computer persons and true
statisticians may provide more relevant information and also to Paulo
Ribeiro and Peter Diggle, the authors of geoR..
I really feel that your huge matrix cannot be
2007 Oct 10
11
please help me
dear list
I am student M.S. statistics in department statistics . I am working in the function "nls" in the [R 2.3.1] with 246 data and want to fit the "exp" model to vectors( v and u ) but I have
a problem to use it
u
5.000000e-13 2.179057e+03 6.537171e+03 1.089529e+04 1.525340e+04
1.961151e+04 2.396963e+04 2.832774e+04 3.268586e+04 3.704397e+04
4.140209e+04
1999 Jun 11
1
SMBMOUNT on SGI
I would like to use smbmount on a SGI running IRIX 6.5.1m. The distribution
of samba for IRIX does not include the executables smbmount or smbmnt. Is
there a source for these executables?
Regards,
Fred
--------------------------------------
Fred Kunzler Phone: (281) 575-5090
91-1SE-42C Pager: (800) 618-5062
10200 Bellaire Blvd. Fax: (281) 575-5473
Houston, TX 77072 E-mail:
2002 Dec 31
0
Using a vendor's dll library from Linux
Hello,
I am interested in using a linux program (EMC) that would need to control a
hardware board from a vendor that only provides windows dlls to initialize it
and give it commands. I would assume that WINE would make it possible for me
to interface with these dlls from linux (even if they call some commom MS
Windows dlls themselves). Am I correct? If so, could someone please point
me in
1999 Jul 19
1
Saving MS Word Documents to a Samba Share from NT
I have installed Samba 2.0.4a on SGIs running IRIX 6.5. My PC is running NT
Workstation SP 3. I have a problem saving documents from MS Word 97 SP 1.
If I create a new document and attempt to save it to a Samba share I get the
following error message: Word cannot complete the save due to a file
permission error. (G:\XX\TEST.DOC). A listing of the directory from Unix
shows the following:
2004 Nov 18
1
ROracle connection problem
Hi,
I found the same question in the mailing list already a few months ago -
but there was no answer to it - so I'll try it again
Could somebody help me to solve this following problem? I just begin to
learn how to connect my Oracle database with R.
> library(DBI)
> library(ROracle)
Warning message:
DLL attempted to change FPU control word from 8001f to 9001f
>
2011 Nov 16
0
calculating variograms (gstat) with large data sets
Dear all,
I am aiming to calculate variograms using variogram() from gstat.
The problem is that some of my data-sets are very large (> 400000 points).
Running the command takes some hours of time and does not give any
error-message.
Nevertheless the result seem not to be appropriate - the first few bins
are ok (up to a distance of about 300) but then it gains lags which are
much larger than
2003 Jul 24
1
geoR size limit problem
Hi all,
I tried to produce some kriged surfaces with geoR (latest version). The size
of the grid should be around 900 x 650 cells (what I find is not a very big
grid), and the number of points is around 2500. The command krige.conv
stopped after arround 5 min saying it can not allocate a vector with around
1.5 billion units. Sounds reasonable.
Is there a workaround? How would I partition the
2013 Apr 04
5
help with kriging interpolation
All,
I am new to using R and know some basics. I wish to use kriging in R to
do the following:
given data Y =f(X1,X2,X3,.....,Xn) --1000+ irregular measured data set.
I would like to be able to get a single value y given sinle input set
(x1,x2,x3,...xn)
A google search on this takes me lierally to the same example on involving
analysis with soil sampling and I cannot figure out how to
2001 Oct 10
1
Importing many files
Hello Cracks,
we want to import 10 x 365 files containing each 7 variables with 1211
rows. The filenames end with numbers from 1 to 365. We tried a for loop
to import using read.table but we couldn't create the r objects within
the loop. We want each file in an own r-objekt (matrix).
Does anyone know what can be done?
Thanks, Felix
--
Felix Tiefenbacher
Eidg. Institut f?r Schnee- und