similar to: Using FME modCost with multiple independent variables

Displaying 20 results from an estimated 1000 matches similar to: "Using FME modCost with multiple independent variables"

2011 Dec 08
0
Fit initial time with modFit and modCost
Hello, I would like to use modFit and modCost from the package FME to find the optimal initial time t0 of a process. For simplicity, the process is either "off" (value 0) or "on" (value h). So I have a data vector with some zeros followed by some h's, e.g. > c(0,0,0,2,2,2,2,2,2,2) [1] 0 0 0 2 2 2 2 2 2 2 (hence h=2 here). I want to find the best guess for the initial
2011 Aug 01
0
Help with modFit of FME package 2
* Apologies for multiple posting * I attached to my previous e-mail a .r file, and it was not permitted by the rules of the mailing lis. Again, please receive my sincere apologies for this. I re-send again the e-mail with .txt attachemnt in the hope someone an help me to solve my problem. I'm trying to fit a set an ODE to an experimental time series. In the attachment you find the R code I
2011 Jul 28
2
Help with modFit of FME package
Dear R users, I'm trying to fit a set an ODE to an experimental time series. In the attachment you find the R code I wrote using modFit and modCost of FME package and the file of the time series. When I run summary(Fit) I obtain this error message, and the values of the parameters are equal to the initial guesses I gave to them. The problem is not due to the fact that I have only one
2013 May 02
0
modMCMC runs in FME package
Dear All,   please help with some thoughts on overcoming the following issues, if possible:   #R Code   require(deSolve) require(FME) pars <- list(k = 0.06,v=18) intimes <- c(0,0.5,12,12.5,50) input   <- c(800,0,800,0,0) forc <- approxfun(intimes, input, method="constant") model <- function(pars, times=seq(0, 50, by = 1)) {   derivs <- function(t, state, pars) {     
2012 May 18
3
Re: [XenARM] Regarding Xen-ARM for Cortex-A8 on Fast Model Emulators [FME]
Questions about the port of Xen to ARM with virt extensions are best posted to xen-devel, the xen-arm list focuses on the PV port. Adding xen-devel since it seems you are mainly asking about the w/-virt-extensions port. On Fri, 2012-05-18 at 12:38 +0100, Krishna Pavan wrote: > Please inform the status of Xen-ARM for Cortex-A8 CPU''s on FME from > ARM. AFAIK no one has tried the
2005 Jul 15
1
nlme and spatially correlated errors
Dear R users, I am using lme and nlme to account for spatially correlated errors as random effects. My basic question is about being able to correct F, p, R2 and parameters of models that do not take into account the nature of such errors using gls, glm or nlm and replace them for new F, p, R2 and parameters using lme and nlme as random effects. I am studying distribution patterns of 50 tree
2006 Apr 17
0
difference of means as response?
Dear R users, I am looking for some advice on the proper construction of a mixed model in R, using the difference in means as the response and treating within-means residuals as a random effect. I have a dataframe (my own, a snippet of which is given below) that is composed of observations of pollen viability in flowers along tree branches. Flowers (1 to 3 per position) were collected from
2011 Apr 13
0
ordinal predictor in anova
Hi, I have a dataset with a continuous response variable and, among other predictors, an ordinal variable. Here is what it could look like treatment <- factor(rep(c("AA", "AC", "AD","AE", "AB"), each = 10)) length <- c(75, 67, 70, 75, 65, 71, 67, 67, 76, 68, 57, 58, 60, 59, 62, 60, 60, 57, 59, 61, 58,
2007 Jul 02
4
Extracting sums for individual factors in data frames
I have a data frame with two columns, one of which is a factor (Species) and the other is numeric (BA, which stands for basal area). Here's a sample: Species BA ACSA 55.7632696 FRAM 122.9933524 ACSA 67.54424205 ACSA 89.22123136 ACSA 82.46680716 ACSA 22.46238747 ACSA 19.94911335 ACSA 20.42035225 ACSA 19.00663555 ACSA 21.67698931 ACSA 57.80530483 ACSA 30.31636911 Dead 43.98229715 Dead
2008 Jun 28
2
String concatenation
Hi, Is the following function built in somewhere? concat = function(v) { res = "" for (i in 1:length(v)) res = paste(res,v[i],sep="") res } e.g. > concat(c("12","3","45")) [1] "12345" Cheers, Andy -- Andy Fugard, Postgraduate Research Student Psychology (Room F3), The University of Edinburgh, 7 George
2011 Jul 25
2
How to find the likelihood of a null model in R
Dear All, I am working on a dataset having the dependent variable as ordinal data(discrete data) and multiple independent variables. I need to find the likelihood for the NULL model.i.e the model with only the dependent variable and all other independent variables as zero. Kindly let me know how to find the likelihood for a NULL model in R. Is there any specific function in R that can do
2009 Nov 03
2
how to display a string containing greek chrs and variables
I'm trying something that I thought would be pretty simple, but it's proving quite frustrating... I want to display, for instance, the correlation coefficient "rho" in a graph. I can do something like: text(x, y, paste("rho =", cor)) where cor would be my previously calculated correlation coefficient, and x and y the coordinates. Obviously that displays
2008 Dec 28
1
model.matrix and missing values
Hi, Does anyone know an easy way of retaining rows in a model.matrix where missing values are present in the predictors. Ideally I'd be able to retain these rows as zeros. Thanks, Jarrod -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.
2008 Sep 01
1
Polychoric and tetrachoric correlation
Hi there, Am I correct to believe that tetrachoric correlation is a special case of polychoric correlation when there are only two levels to the ordered factor? Thus it should be okay to use hetcor from the polycor package to build a matrix of correlations for binary variables? If this is true, how can one estimate 95% confidence intervals for the correlations? My guess would be mat =
2008 Mar 04
1
battery.temperature vs ups.temperature
The (2.2.1) upshid-ups driver reports battery.temperature rather than ups.temperature. Here's a quick patch to have it show up in the status page... --- clients/upsstats.c.DIST 2008-03-04 09:15:40.000000000 +0000 +++ clients/upsstats.c 2008-03-04 09:16:20.000000000 +0000 @@ -787,6 +787,11 @@ return 1; } + if (!strcmp(cmd, "BATTTEMP")) { +
2017 Jun 23
1
qemu-kvm-ev-2.6.0-28.el7_3.10.1 now available
On Fri, Jun 23, 2017 at 11:26 AM, Chris Cooke <cc at inf.ed.ac.uk> wrote: > qemu-kvm-ev-2.6.0-28.el7.10.1 > <https://cbs.centos.org/koji/buildinfo?buildID=17495> has been tagged for > release and will soon be available on CentOS mirrors. > > > Hi Sandro, > > Thanks. That looks like a typo in the package release field? Should be > 28.el7_3.10.1, rather than
2009 Mar 03
1
ggplot2: annotated horizontal lines
Hello, I'm using geom_hline to add a minimum line to my plot (representing the best solution found so far by a search algorithm). I'd like to annotate this line with it's numerical value to save trying to read it off the graph, but I can't see a clear way to do this - any ideas? (Alternatively, if this is against the spirit of the grammar of graphics, is there a better
2010 Aug 03
1
how to read/save .zip compressed files from R?
Dear list, is there a way to open a .zip folder so that one can extract and modify files inside and then save teh .zip folder again? thanks! Jose -- Dr. Jose I. de las Heras Email: J.delasHeras at ed.ac.uk The Wellcome Trust Centre for Cell Biology Phone: +44 (0)131 6507095 Institute for Cell & Molecular Biology Fax: +44 (0)131 6507360 Swann Building,
2003 Nov 13
1
creating a "report" table from a set of lists
I've been trying to figure out how to accomplish the following... I've got a list (returned from a function) and I would like to "cbind()" the lists together to create a "cross tab" report or simply bind them together somehow the function returns a list that looks like the following: > all$BM $species [1] "BM" $vbar.nobs [1] 3 $vbar.sum [1] 54.05435
2011 Jul 21
1
nested loop for
Hi everyone, I have been working some days in a nested loop in R but I can't find the solution. I have a data.frame with an unique ID for individuals and unique ID for different stands, for each indiviadual I have a dbh record and a SBA (stand basal area) field. Pma<-rep (1:40) P<-seq(1,4, 1) Plot<-rep(P,10) dbh2<-rnorm(40, mean=200, sd=5) SBA2<-rnorm(40, mean=10, sd=1) As