search for: minimise

OS: Arch Linux (64-bit) (fully updated) GFX Card: Geforce 8800GT (driver version irrelevant - had problem for a year) WM: Openbox Problem: Whenever I minimise WoW, the fps drops to sub-10. I can solve this by minimising and maximising the window again, but if I wait too long after minimising, it doesn't always work. Also, if I minimise it by accident too many times, it also doesn't work. The way I've put up with it is basically just never mi...

...where I can limit the step size dynamically. With the NAG routine E04NBF (I think) I used to bound the size of the next step using a*arctan(x/a) tricks where a function was particularly difficult near a boundary and thus 'steer' the result within legal limits. The function I am trying to minimise is (negative) log likelihood for the GEV but with a *lot* of right-censoring. I am not currently sure whether it is a numerical problem (it could well) but I would like to explore any other optimiser if there is one in the many libraries. \John -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

Hi all, Is it possible to programmatically minimise the main window of the windows R gui? I'm designing a small gui with gwidgets & RGtk2 for an non-statistician to use, and it would be nice if I could easily hide all the R stuff that they don't need. Thanks, Hadley -- http://had.co.nz/

Look at it, and you'll see the black outline is missing on the right side of the minimise button. This has been bugging me for a while. I've attached a zoomed in shot, so you can see easily what I mean. It's not a bug in the theme, but in gtk-window-decorator's Metacity theme support, as the border displays perfectly in Metacity. Does it happen with other themes? ----------...

I have installed Simple Sudoku (http://www.angusj.com/sudoku/index.php) but I cannot minimise it, nor go to another screen to do something else. If I try, its window gets larger, vertically. I am using wine 20050725 (which is what is packaged for my system at present), on a Debian system running XFree86, with icewm-gnome. Can anyone advise why this program "hogs attention"? --...

I'd like to get disk I/O down to a minimum for my new Centos 5.5 installation. The machine will not be used as a web server anymore, as that's now hosted on a cloud platform. So there are no HTTP requests coming down the line. If I move the SWAP partition and /var/log/ to a small spare drive, and install Centos on the new larger drive, is there anything else that would cause disk

Hi, R-folks: I have been tryin many combination of parameter to make Matern variogram to work, but I can't find the available one. I'm near to be crazy. I tiped: A?o2003Selg.lf<-likfit(A?o2003Selg,cov.model="matern",ini.cov.pars=c(1.5,14),kappa=2.5,fix.kappa=FALSE,nugget=0.08,lambda=0.008,fix.lambda=FALSE,hessian=TRUE) the hessian shows: $hessian [,1]

...robably with adjustable shelves). Question: Is there a resource to approach the solution of the problem of optimising the placement of adjustable shelves, the design of additional bookcases, and the placement of the books in the resulting shelf-space so as to A: Make the efficient use of space B: Minimise the spatial disclocation of related books (it is acceptable to separate large books from small books on the same subject, for the sake of efficient packing). Awaiting comments and suggestions with interest! With thanks, Ted. ------------------------------------------------------------------...

...nt the actual problem with a reproducible example. In principle the problem can be solved by linear programming, so I include code for my attempt at this via RGLPK. It says that there is no feasible solution, but the solution is known analytically in the case below. Here is the precise problem: Minimise, over 100?1 real vectors v, Max_i(|v_i|) such that X'v=e_2, where X is a given 100?2 matrix and e_2 =(0,1)'. The v_i are the elements of v. I have put the actual X matrix at the end of this post, along with a feasible starting value for v. The correct minimum is 0.01287957, obtained wi...

Dear R users, I am searching for a general minimisaton function like 'ms' in R. Please give me a hint! -- ------------------------------------------------------------ Dipl. Inform. J. Hedderich Institut f?r Medizinische Informatik und Statistik im Klinikum an der CAU Phone : 0431/5973182 Brunswiker Str. 10

Hi, I need to find the minimum value of the parameter, s, such that the function f(s,t) > 0 (where -Inf < t < Inf) I've looked into optim, constrOptim and others but they don't seem to do this. Des anyone have some suggestions? Thanks in advance. [[alternative HTML version deleted]]

Dear all, I want to find the optimal values of a vector, x (with 6 elements) say, satisfying the following conditions: 1. for all x>=0 2. sum(x)=1 3. x[5]<=0.5 and x[6]<=0.5 For the minimisation I'm using nlminb and to satisfy the first 2 conditions the logistic transformation is used with box constraints for condition 3. However, I don't seem to be able to get the values x

...ow=3,ncol=1) for( i in 1:3){ yy<-(y[((long[i]+1):long[i+1])]) xx<-x[(long[i]+1):(long[i+1])] y_est<-(param[i+2]-(xx/param[i])^param[(2*3)+1]) sce_yest[i,]<-sum((yy-y_est)^2) } return(sum(sce_yest)) } Then, I use the fonction optim for obtaining a vector of 7 parameters which will minimise the fonction sce. I use initial parameters at random that I don't have a answer relating to a minimum local. pinit=c(runif(3,min=0,max=10), runif(3,min=3,max=8),runif(1,min=0,max=4)) optim(p=pinit,sce) if I use the function as above, I got an answer but the value of the parameters is not in t...

Dear R users, I am trying to minimise a function using "nlm". I am getting the following error message: "Error: function is too long to keep source" The function is really very long (about 100 A4 pages). Is there anything I could do to solve this problem? At the moment I am using "nlmin" in S-Plus wit...

I have a function of several variables which I wish to minimise over four variables, two of the upper bounds for which are defined in terms of other variables in the model over which minimisation will take place. I cannot work out how to code this in such a way as to avoid getting an error message when I run the code. If anyone can provide any assistance I wil...

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

Hi all, I am currently optimising a small portfolio I have created as a part of my research project in Excel. I am unable to find the appropriate package to port this into R. My problem set up is as follows Minimise ABS(Sum(Xi-Xi')+10*Sum(XiMi)/Mavg) Subject to: 0 <= Xi <= 0.05 ABS(Sum(Xi)) = 0.2 where Mi - Market Cap of Stock i Xi - Initial weight of Stock i Xi' - New weight of Stock i Mavg = Average weighted market cap of portfolio. My portfolio has a long as well as a short side, therefore...

Ben Bolker gives some reasons why Numerical Recipes may be problematic as a starting point for R codes. CUP did a masterful job of marketing, but the license is restrictive as the links he gives points out. In some tests, I've also noted that some of the algorithms are less than stellar e.g, convergence tests in one or two optimization routines. Should we have a wiki item to help people find

Hi All, I would like to know, is there a *ballpark* figure for how many parameters the minimisation routines can cope with? I'm asking because I was asked if I knew. Cheers, Federico -- Federico C. F. Calboli Department of Epidemiology and Public Health Imperial College, St. Mary's Campus Norfolk Place, London W2 1PG Tel +44 (0)20 75941602 Fax +44 (0)20 75943193 f.calboli [.a.t]

...ll setup. In my sip.conf [general] section I've got disallow=all allow=gsm allow=ulaw allow=alaw But when Asterisk bridges a call from an E1 to VoIP it sends out an INVITE with the codecs listed in the following order of preference alaw, gsm, ulaw It looks as if Asterisk is trying to minimise its work (alaw is what is received on the E1). Unfortunately, my requirements are to minimise network bandwidth so I would reather it offered codecs in the order specified in sip.conf - i.e. gsm first. Oddly, if the call is being bridged in the opposite direction (from VoIP to E1) and Asterisk re...