Displaying 18 results from an estimated 18 matches for "lecca".
Did you mean:
lecco
2011 Aug 05
3
fit a 2-variables function to data
Dearl all,
I have to fit a function
y = f(x1, x2)
to data experiemntal data describing the measured behavior of y.
x1 and x2 are the independent variables.
Could you suggest me wich R package can I use for this purpose?
Thanks,
Paola.
--
*Paola Lecca, PhD*
*The Microsoft Research - University of Trento*
*Centre for Computational and Systems Biology*
*Piazza Manci 17 38123 Povo/Trento, Italy*
*Phome: +39 0461282843*
*Fax: +39 0461282814*
[[alternative HTML version deleted]]
2011 Jul 28
2
Help with modFit of FME package
...ial guesses I gave to them.
The problem is not due to the fact that I have only one equation (I tried also with more equations, but I still obtain this error).
I would appreciate if someone could help me in understanding the reason of the error and in fixing it.
Thanks for your attention,
Paola Lecca.
Here the error:
> summary(Fit)
Parameters:
Estimate Std. Error t value Pr(>|t|)
pro1_strength 1 NA NA NA
Residual standard error: 2.124 on 10 degrees of freedom
Error in cov2cor(x$cov.unscaled) : 'V' is not a square numeric matrix
In additi...
2011 Aug 05
2
problemsn in using nls
...416 16.689 0.2900000 0.0424156026
36 13.864 17.015 0.4065000 0.2330000000
37 16.219 21.776 0.5230000 0.1567965535
38 13.249 17.371 0.5650035 0.0498847737
39 14.445 19.218 0.5730000 -0.0435396634
40 13.210 21.309 0.5211514 -0.1713939796
41 12.358 24.966 0.4000000 -0.3132118164
--
*Paola Lecca, PhD*
*The Microsoft Research - University of Trento*
*Centre for Computational and Systems Biology*
*Piazza Manci 17 38123 Povo/Trento, Italy*
*Phome: +39 0461282843*
*Fax: +39 0461282814*
[[alternative HTML version deleted]]
2002 Mar 20
4
spatial library
Hi everybody,
I want to download the spatial library but I don't find it at the CRAN
list package. Where can I find the package ?
I have to download it to use the function correlogram.
Thanks in advance,
Paola.
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info",
2002 Mar 27
1
kriging C/C++ code
Hello to everybody !
I don't have a question directly connected with R, but it takes starting
point from the use of the R function Krig for kriging interpolation and
from the idea of making a different implemetation of the function for my
purposes.
Doas anyone know where can I find free C or C++ codes of kriging ?
As always, thanks a lot in advance,
Paola.
2011 Aug 04
1
use of modMCMC
...dMCMC performs a Markov Chain Monte
Carlo simulation.
I do not understand very well how modMCMC can be used in a context of
parameter estimation. Could someone help me in understanding the use of this
function and its utility for parameter fiting?
Thank you very much in advance,
Paola.
--
*Paola Lecca, PhD*
*The Microsoft Research - University of Trento*
*Centre for Computational and Systems Biology*
*Piazza Manci 17 38123 Povo/Trento, Italy*
*Phome: +39 0461282843*
*Fax: +39 0461282814*
[[alternative HTML version deleted]]
2011 Aug 01
0
Help with modFit of FME package 2
...ial guesses I gave to them.
The problem is not due to the fact that I have only one equation (I tried
also with more equations, but I still obtain this error).
I would appreciate if someone could help me in understanding the reason of
the error and in fixing it.
Thanks for your attention,
Paola Lecca.
Here the error:
> summary(Fit)
Parameters:
Estimate Std. Error t value Pr(>|t|)
pro1_strength 1 NA NA NA
Residual standard error: 2.124 on 10 degrees of freedom
Error in cov2cor(x$cov.unscaled) : 'V' is not a square numeric matrix
In additio...
2002 May 20
1
problem with levelplot
Dear all,
I have a strange problem with levelplot of lattice library.
When I launch from R a script in which there is the command
levelplot(z~x*y, ...)
the device with plot is not visualized. Other commands for graphycs,
like plot visualize the graphycs. Why ?
What hava I to do ?
Thanks,
Paola
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list
2002 May 22
1
Tps regression question
Dear all,
I'm a beginner in spatial regression, therefore, excuse me in advance for
the stupid question.
I'm using the function Tps of field library. As I read in help, the
assumed model for this regression is additive Y = f(X) + e where f(X)
is a d dimensional surface.
I have understood that d in not an argument to specify in Tps(x, Y, ...).
How can I obtain d ?
Thanks a lot.
2002 Jun 27
1
signal extraction
Hi !
is there a package in R dedicated to the signal analysis ? I'm searching
for statistical methods for the signal extraction from background in a
digital image. Does R have a package to perform this kind of analysis ?
Thanks a lot,
Paola.
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read
2002 May 24
1
nmath standalone again
Hi !
I have again problem with nmath standalone sources package.
Following the suggestion of Reid, I did control that
/usr/local, in which I copied the dir standalone, is listed in
/etc/ld.so.conf.
However, because of my big ignorance, I don't understand how I have to do
the linkage to Rmath during the compilation of a source.
What does it mean:
"and link against -lRmath" in
2011 Aug 20
0
help with nls fitting
...16 2.478 5.3680000 0.63914248
36 13.864 1.394 5.6374239 0.45419096
37 16.219 2.299 5.8270000 -0.12540453
38 13.249 1.457 5.2505000 -1.15300000
39 14.445 2.325 4.6740000 -0.09880849
40 13.210 2.230 5.5576966 2.17200142
41 12.358 2.116 8.9470000 11.38521228
--
*Paola Lecca, PhD*
*The Microsoft Research - University of Trento*
*Centre for Computational and Systems Biology*
*Piazza Manci 17 38123 Povo/Trento, Italy*
*Phome: +39 0461282843*
*Fax: +39 0461282814*
[[alternative HTML version deleted]]
2002 Mar 21
2
table of variance analysis
Hello everybody !
I want to evaluate the goodness of the fit of a trend surface. I use the
Least square methods and the function surf.ls. The I write
tma3.sur3 <- surf.ls(3, x, y, z)
summary(tma3.sur3)
Now the question: is the Pr(>F) the probability to obtain a value of
F equal or greater than the obtained one ? Is the confidence level 0.05 ?
Thanks a lot for any help.
Paola.
2002 May 23
1
nmath standalone
Dear all,
I'm trying to use the as a standalone package the nmath sources.
In R-1.4.1/src/nmath/standalone, in linux operating system I made 'make
shared' to obtain libRmath.so. then I copied the dir standalone, where
there is libRmath.so in /usr/local.
I tried to compile test.c with cc test.c but I obtain this error message
/tmp/ccsTxu7U.o: In function `main':
2002 Apr 03
3
non-stationary covariance
Hi !
Sorry for my ignorance. I have two questions:
1) which is in R the function to make a covariogram of spatial data ?
2) does anyone know if there exist the possibility in R of performing
kriging with an arbitrary covariance function ?
If I have well understood the Krig procedure offers only three
possibilities (expcov, gauscov and sphercov) that are the common models
for stationary and
2002 May 31
1
Two questions about nmath
Hi !
1) First question.
Excuse me for trouble with the same question. I still have problems
with the compilation of test.c in src/nmath/standalone.
I did follow the instructions you gave me but I still receive this message
[root at my standalone]# cc -o test test.c -L/usr/local -lRmath
/usr/local/libRmath.so: undefined reference to `log'
/usr/local/libRmath.so: undefined reference to
2002 Jun 06
0
dendrogram's number of nodes
Hi !
Is there a way in hclust procedure to obtain the number of nodes
(clusters) for a desidered distance level ?
Thanks,
Paola.
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject
2002 Jun 18
0
2d histogram interpolation
Hi !
I want to find the surface the interpolates a 2D histogram, that I have
generated with hist2d. I don't want to make a fit, but simply an
interpolation.
Which function have I to use to do this ?
Thanks in advance.
Paola.
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send