similar to: plotting values "by"

I've developed a dll (win32) of a bunch of functions prototypes as: /* for building on *nix */ #ifndef WIN32 #define __stdcall /*nothing*/ #endif void __stdcall dbh_2_height( const unsigned long *func_idx, const unsigned long *metric, const unsigned long *species, const double *dbh, double *pred_height ); and have created a R interface

I've been trying to figure out how to prevent a column that is the result of an aggregate function call so that I can use it in further calculations. For example, I would like to aggregate the expf for the data.frame by sp (character) and dbh (double d=rounded to integer) using the command: > st2 <- aggregate( ntrs$expf, by=list(sp=ntrs$sp,dbh=ntrs$dbh), sum ) > st2$expf <- st2$x

I've figured out how to use optim (barely) to estimate 2 parameter = weibull distributions. I can't get over how easy this is. What I need to = do is use a weight in the observations..... For example,=20 the tree diameters and weights are are=20 4.70 , 100 6.00, 98 7.10, 75.0 8.10, 86.3 8.60, 80.456 8.90, 20.5 9.50, 16.6 11.40, 12.657 11.80, 12.47 14.50,

R-folks, Is there a function, like aggregate, that allows users to bin values? I've got to break down a data frame into classes of 5cm (or something like it), and I only know how to do it using code like, signif <- symnum( stems$dbh, corr = FALSE, na = FALSE, cutpoints = c(0,10,20,30,40,999), symbols = c(0,10,20,30,40) )

I've been trying to figure out how to get the names of the parameter vector variables when inside the function that nlm calls to return the objective function value: knls <- function( theta, eqns, data, fitmethod="OLS", instr=NULL, S=NULL ) { ## print( names( theta ) ) # returns NULL ## get the values of the parameters for( i in 1:length( theta ) )

I thought I had plotted a map of oregon and washington and overlayed some points using R. Is that possibe since I can't seem to find the source file I used or commands for plotting maps and points? If not, sorry for the bother... Thanks, Jeff. Jeff D. Hamann Hamann, Donald & Associates, Inc. PO Box 1421 Corvallis, Oregon USA 97339-1421 Bus. 541-753-7333 Cell. 541-740-5988 jeff_hamann

I'm having some trouble installing the add on packages. I would like to install the RMySQL_0.4-3.tar.gz add on package. I've downloaded it and unzipped the package. The INSTALL file says R CMD INSTALL [-l<alternate-dir>] RMySQL_<version>.tar.gz does this mean in the R system enter the following? > INSTALL -l /root/RMySQL_0.4-3.tar.gz (?) when I do this I get... Error:

I'm trying to make sure my R package will install properly (build help files, etc) and when I try to run the rcmd check (or any rcmd option) I get the following error. Does dcf.pm stand for perl module? If not, why do I get this message? C:\systemfit\r_code>rcmd check --help Can't locate R/Dcf.pm in @INC (@INC contains: c \PROGRA~1\r\rw1041\share\perl; /usr/lib/perl5/5.6.1/cygwin-multi

Is it possible to write the output/results (redirect) to a latex file? Jeff. Jeff D. Hamann Hamann, Donald & Associates, Inc. PO Box 1421 Corvallis, Oregon USA 97339-1421 Bus. 541-753-7333 Cell. 541-740-5988 jeff_hamann at hamanndonald.com www.hamanndonald.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

Okay, I stumped. I'm trying to build a matrix or data.frame that consists of values by group. For example, resid, group 574 0.536196370873122 E 575 0.93191093696265 E 576 -1.27116094894117 A 577 -1.05159666055027 A 578 0.398273458301184 D 579 0.586373126102573 E 580 0.806575304513802 E 581 0.897258393118338 E 582 0.342393324256838 D 583 0.781245511773227 E I

I'm trying to build a vector (fitting systems of equations) and I'm having a little trouble getting the response variables from a list of formulas... bdgmodel <- lbdg ~ d1sqr + ld1 + lhg hgmodel <- lhg ~ ht2 + lht + whc inst <- ~ d1sqr + ld1 + ht2 + lht + whc systemeq <- list( bdgmodel, hgmodel ) # manually generate the y matrix... y <- cbind( matrix( lbdg ),

I've been having problems with Rterm.exe not shutting down when I exit an R (1.7.0 and 1.7.1) session from within emacs when using ESS. I've just upgraded to 5.1.24 and still have the same problems. I'm running ntemacs and winxp. I don't recall having these troubles with version 1.6.2 of R. Jeff. --- Jeff D. Hamann Hamann, Donald and Associates, Inc. PO Box 1421 Corvallis, Oregon

I'm trying to create some trellis plots (like the last plot in the lattice demo). When I run the demo( "lattice" ), the demo runs just fine, but when I cut and paste some or all of the demo code into a r file of mine (and nothing else), I can't see anything on a device and it doesn't look like any of the demo is being run. Has anyone else seen this? Jeff. Jeff D. Hamann

I've got a c function in a dll and have been able to call it from R. The function is : void __stdcall testfunc2( unsigned long *a, double *b, unsigned long *c, double *result ) { *result = 0; *result = (*a) * (*b) * (*c); } and the R code to call the function is as follows: dyn.load("c:/openfvs/biometrics/debug/biometrics.dll" ) tf2 <- function(

I see the uderscore "_" is not allowed in R. This make R a real drag when trying to use with SQL packages and c code. Why is the underscore not allowed and will it be allowed in a future release? Jeff. Jeff D. Hamann Hamann, Donald and Associates PO Box 1421 Corvallis, Oregon USA 97339-1421 Bus. 541-753-7333 Cell. 541-740-5988 jeff_hamann at hamanndonald.com www.hamanndonald.com

Dear R programming folks: I'm trying to finish off a package for non-linear simultaneous system estimation and I've been trying to figure out how to get the names of the parameter vector variables when inside the function that nlm calls to return the objective function value: knls <- function( theta, eqns, data, fitmethod="OLS", instr=NULL, S=NULL ) { ## print(

> I don't have netscape installed on my machine (FreeBSD 4.4) and when I type > the command help.start(), I get > > > netscape: not found > > error. I do have mozilla installed. Is this a defect? can I run any web > browser? > > jeff. > > > ----- Original Message ----- > From: <Majordomo at stat.math.ethz.ch> > To: <jeff_hamann at

I'm frightfully new at developing r packages. I'm developing an econometrics package, and each time I update my beta package, I close R, delete the package dir in the library dir, rebuild the zip file, rerun R, reinstall the package and run the functions. Is there a more efficient way? Jeff. Jeff D. Hamann Hamann, Donald & Associates, Inc. PO Box 1421 Corvallis, Oregon USA 97339-1421

I would like to plot lots of plots (2x2 plots) of a set of data for many sets. I can do it just fine for one set of data, but I would like to generate a small mountain of plots for others to examine. Basically, I would like to generate the same par( mcol=c(2,2) ) plot for about 1000 datasets. I've been iterating through them in the plot window, but I would like to send all the plots to a eps

Are these posts available in journal form so I could get only one message a day? I really enjoy getting the lowdown on R and I'm really putting it to work and have almost stopped using that other package whose initials are "SAS", but I' like to unclutter the inbox. Or are these archived at the end of the day, week, or month? I wouldn't want to go for a week without learning