search for: holling

Hey, So I have a scatter plot and I am trying to plot a curve to fit the data based on a Holling Type III functional response. My function is this: nll2<-function(a,b) { conefun<-(a*DBH^2)/(b^2+DBH^2) nlls2<-dnbinom(x=cones ,size=DBH, mu=conefun,log=TRUE) -sum(nlls) } and my plot is this: plot (DBH,cones) DBH is on the x-axis and cones is on the y-axis. How do I get the curv...

Dear R-freaks, I am new to R and loke to write plots directly to a file with a script in batch-mode. the following error occured: # writing section > x11() Error in x11() : the x11 device has not been loaded Execution halted I do not know what to do! thanks for your help cheers steph -- Linux: the operating system with a CLUE... Command Line User Environment.

Hello, While trying to get a 0.8.5 rails application to run under 0.10.0, I discovered that an action called ''display'' no longer worked. (As example it''s still existant in ctionpack-1.5.0/README). After a long search, I discovered that the reason is that ActionController::Base inherits from Object, and because there is Object#display it will no longer be called as

Hi List, I am trying to migrate my dovecot 0.9 (mbox-Storage) to 1.0rc2 with maildir-storage using imapsync. I cannot manage to copy the emails from one server to the other, however the dry-run from imapsync works nicely. Is it possible to make dovecot more verbose to see what is happening (or not happening)? Thank you very much. Best Stephan

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear R-Users, I cannot understand the behavior of ifelse. I have a vector blah > str(blah) List of 14 $ index.s : num 100 $ index.u : num 100 $ index.t : num 100 $ yabstand.s: num NA $ yabstand.u: num NA $ modal.s : int 8 $ modal.u : int 71 $ modal.t : int 21 > > str(blah$index.s) num 100 > everything seems OK. when

Dear R-Users, I store my data in an Postgres-table. I can connect with Rdbi.PgSQL, that is no the problem. The problem is the NA-Values. No-data-values are coded as -9999 in the table. But when I extrct them with any SELECT-statement, the -9999-values are treated as normal vectors. How can I tell R not to fetch the datasets containig -9999-values? thanks for your help stephan -- Linux: the

Dear R-users, I would like to use an environment variable inside an SELECT-statement from R to a postgres-db, but it will not work and so I need some advice from you. <code> ezg <- Sys.getenv("EZG") connect <- dbConnect.PgSQL(host="localhost", user="username", dbname="dbname") query <- dbSendQuery(connect, "SELECT ezg.s FROM ezg WHERE

Hey, am i to stupid to find the information about how to route to a controller in a module? Maybe module support has gone! The controller is under: app/controllers/admin/my_controller.rb The my_controller.rb file looks like this: module Admin class MyController def index render :text => ''Hello!'' end end end How does a route to all controllers under module

Dear R-Gurus, I am preparing a multiple-plot-sheet with 2rows and 2 columns, but there are actually only 3 plots to plot. the 4. part of my sheet should contain a table with simple statistic values like n, mode, standard deviation.... I cannot handle to plot the information in the plot. the summary() function prints it to the xtrem instead of the plot. Here is an example-plot with the 3 plots

Hello list, I try to get dovecot listen only at localhost. I try listen localhost:993 and it did not work. The installation I made from http://holl.co.at/howto-email/ How it is possible that dovecot with imaps only work on localhost? Thanks for the help. Best regards Dirk

Dear guRus, I want to do some boxplots, but the median sould appear in another line-thickness and another color. I do not know, what to do in order to realise my wishes. Sorry for that question, but I am new to R. cheers steph -- Linux: the operating system with a CLUE... Command Line User Environment. -------------------------------------- Stephan Holl GnuPG Key-ID: 11946A09 ICQ#

Dear list, I am planing to set up dovecot-imapd on my production-mail server which currently only runs pop3 via qpopper on debian-sarge. It would be best, if I could only use imapd and use the existing pop3- server (qpopper) as it is. Is this possible? Can the user both use pop3 (qpopper) and imapd (dovecot) in parallel then? Where does dovecot-imapd store its mails? Does it store its mail in

Hi, There's a nasty bug in auth-open.c that causes all options in a line of authorized_keys to be applied to all subsequent lines without options. IMNSHO this clearly shows the evil of global variables, and using extern whatever as a means of information sharing. Cheers, Han Holl --- auth-options.c.orig Fri Feb 9 14:14:51 2001 +++ auth-options.c Fri Feb 9 14:18:43 2001 @@ -57,11 +57,12

Hello, I am trying to model a type II functional response of number of prey eaten (Ne) against number supplied (No) with a non-linear least squares regression (nls). I am using a modification of Holling's (1959) disc equation to account for non-replacement of prey; Ne=No{1-exp[a(bNe-T)]} where a is the attack rate, b is the handling time, and T is the experimental period. My script is as follows; model<-nls(Ne~No*(1-exp(a*(b*Ne-T))),start=list(a=1.2,b=0.015,T=24)) This returns the foll...

Hello Stephan, Monday, June 13, 2005, 12:58:54 PM, you wrote: SH> I am struggeling around with the permissions of the recycle-vfs-module. SH> While working mostly good( placing deleted files inside the .recycle- SH> folder), the touch-option does not work. I am experiencing the same problem. The recycle vfs module is quite buggy, IMHO. The touch option does not seem to work,

...likelihood ratio tests and AIC. Can anyone give advice on how to do this? My likelihood functions are long so I'll use the tadpole predation example from Ben Bolker's book, Ecological Data and Models in R (p. 268-270). library(emdbook) data(ReedfrogFuncresp) attach(ReedfrogFuncresp) # Holling Type II Equation holling2.pred = function(N0, a, h, P, T) { a * N0 * P * T/(1 + a * h * N0) } # Negative log likelihood function NLL.holling2 = function(a, h, P = 1, T = 1) { -sum(dbinom(Killed, prob = a * T * P/(1 + a * h * Initial), size = Initial, log = TRUE)) } # MLE statement FFR.holl...

Hi The short version of my questions is this: How can I run a chi-square test over a matrix (table) to get the distanaces between rows and then run a SingleLinkage (or other fusion algorithm over the resulting table? ------------ The long-version of my question: My data consists of different data of different countries so I have stuff like how many people can read, write in X,Y,Z countries

Hello, I have old MBOX-trees from a dovecot-0.99-installation. I would like to integrate them into dovecot 1.0.0rc15 with Maildir. Sadly the old dovecot is no lonfger running, otherwise imapsync could be used. Does anybody can give some hints how to start? TIA Stephan

Hi, dispatch.fcgi does: require ''fcgi'' FCGI.each_cgi { |cgi| Dispatcher.dispatch(... Because each_cgi is only in fcgi.rb, this is dependant on finding fcgi.rb first. Rub 1.8.2 shows the following $LOAD_PATH /usr/lib/ruby/1.8/i386-linux-gnu /usr/lib/ruby/site_ruby/1.8/i686-linux-gnu /usr/lib/ruby/site_ruby/1.8 /usr/lib/ruby/site_ruby/1.8/i686-linux /usr/lib/ruby/site_ruby

Hi, If sshd is started with 'sshd', restarting with kill -HUP will fail. I've included the most obvious patch, but making sure that the full pathname is in saved_argv[0] just might be more secure. Cheers, Han Holl --- sshd.c.orig Mon Feb 19 10:55:54 2001 +++ sshd.c Mon Feb 19 10:56:15 2001 @@ -208,7 +208,7 @@ { log("Received SIGHUP; restarting.");