search for: loehrke

Displaying 13 results from an estimated 13 matches for "loehrke".

2008 Jun 10
3
fitting periodic 'sine wave' model
...t;-nls(y ~ A*sin(2*pi*F*x), start=list(A = 1, F = 1), trace=T) # even this gave a max iteration error r<-nls(y ~ A*sin(2*pi*F*x), start=list(A = 1, F = .5), trace=T) I have a feeling I am approaching this incorrectly. Thank you all very much for the guidance. Jon R 2.7.0 mac os 10.5 Jon Loehrke Graduate Research Assistant Department of Fisheries Oceanography School for Marine Science and Technology University of Massachusetts 200 Mill Road, Suite 325 Fairhaven, MA 02719 jloehrke at umassd.edu T 508-910-6393 F 509-910-6396
2009 Sep 16
3
apply function across two variables by mult factors
...F $f1==i & testDF$f2==j,1:2]) } } testDF sessionInfo() #R version 2.9.1 Patched (2009-08-07 r49093) #i386-apple-darwin8.11.1 # #locale: #en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8 # #attached base packages: #[1] stats graphics grDevices utils datasets methods base Jon Loehrke Graduate Research Assistant Department of Fisheries Oceanography School for Marine Science and Technology University of Massachusetts 200 Mill Road, Suite 325 Fairhaven, MA 02719 jloehrke@umassd.edu T 508-910-6393 F 508-910-6396 [[alternative HTML version deleted]]
2008 Apr 11
1
polygons on scatterplot3d
...,30,10) p3d<-scatterplot3d(long, lat, weight, angle=75, type='h', box=FALSE, asp=1, grid=FALSE) p3d$points3d(coast$x,coast$y,rep(0, length(coast$x)), type='l', col='gray') # Now how to fill this polygon...? Cheers, Jon Mac OS 10.5 R 2.6.2 Intelligence Finite Jon Loehrke Graduate Research Assistant Department of Fisheries Oceanography School for Marine Science and Technology University of Massachusetts 200 Mill Road, Suite 325 Fairhaven, MA 02719 jloehrke@umassd.edu 508-910-6393 [[alternative HTML version deleted]]
2007 Sep 07
1
tcl/tk help
...cltk) Loading Tcl/Tk interface ... Error in fun(...) : couldn't connect to display ":0" Error : .onLoad failed in 'loadNamespace' for 'tcltk' Error: package/namespace load failed for 'tcltk' Is there an explanation to this problem? Thank you very much. Jon Loehrke Fisheries Graduate Research Assistant School for Marine Science and Technology UMASS-Dartmouth 838 S. Rodney French Blvd. New Bedford, MA 02744 Phone: 508-910-6393 Fax: 508-910-6396
2007 Sep 27
1
crashing R through lattice
...(2,2),# where c=# of columns, R=Number of rows main=list ("QQnorm plot for .", cex=0.8), sub = list("",cex=.8), xlab = "Unit Normal Quantile", ylab=list ("variable in x units", cex=.8)) Thanks, Jon Jon Loehrke Fisheries Graduate Research Assistant School for Marine Science and Technology UMASS-Dartmouth 838 S. Rodney French Blvd. New Bedford, MA 02744 Phone: 508-910-6393 Fax: 508-910-6396
2009 Jun 12
2
Automate a data load and merge
...# Any help to automate this process is greatly appreciated!!! sessionInfo() #R version 2.9.0 (2009-04-17) #i386-apple-darwin8.11.1 # #locale: #en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8 # #attached base packages: #[1] stats graphics grDevices utils datasets methods base Jon Loehrke Graduate Research Assistant Department of Fisheries Oceanography School for Marine Science and Technology University of Massachusetts 200 Mill Road, Suite 325 Fairhaven, MA 02719 jloehrke@umassd.edu T 508-910-6393 F 508-910-6396 [[alternative HTML version deleted]]
2008 Mar 15
1
Conditionals for Errors or error flags
...on(x){ if(IS.ERROR(do.something)){do.something.else}else{do.something} #or flag error } run.prog(data) #runs everything if there is an error it does not abort with error but rather does something else that doesn't error and continues. Thank you very much, Jon R 2.6.2 MAC OS 10.5 Jon Loehrke Graduate Research Assistant Department of Fisheries Oceanography School for Marine Science and Technology University of Massachusetts 200 Mill Road, Suite 325 Fairhaven, MA 02719 jloehrke at umassd.edu 508-758-6393
2007 Oct 07
1
Old packages to updated R
...uot;file path/oldpackages.csv", header=TRUE) package.list$Package<-as.character(package.list$Package) install.packages(c(package.list$Package)) #wait awhile and ignore errors for base packages. system: Mac powerbook intel duo. Latest OS R 2.60 [now, thanks to everyone involved] Jon Loehrke Fisheries Graduate Research Assistant School for Marine Science and Technology UMASS-Dartmouth 838 S. Rodney French Blvd. New Bedford, MA 02744 Phone: 508-910-6393 Fax: 508-910-6396 "Opportunity is missed by most people because it is dressed in overalls and looks like work." --Thomas A...
2008 Feb 05
2
maps and lattice
Is it possible to place maps onto lattice plots? With basic plotting you can add a map to a plot library(lattice) long<-c(-69.2, -69.5, -70.1, -70.3) lat<-c(41, 41.5, 43.2, 42.8) plot(long, lat) map('state', c("massachusetts"),add=TRUE) but is it possible with lattice? library(lattice) factor<-c(1,1,2,2) xyplot(lat~long|fact) ...now what? I have looked at panel and
2009 Feb 10
1
lattice shingle with time and date format
...) #In the lattice book there is this outline bPlot<-plot(breaks) dPlot<-xyplot(y~x|breaks, data=df) plot(bPlot, position=c(0,0.65,1,1)) plot(dPlot, position=c(0,0,1,0.65),newpage=FALSE) #The plot is ok, but the xaxis is in numeric and not date ######################################### Jon Loehrke Graduate Research Assistant Department of Fisheries Oceanography School for Marine Science and Technology University of Massachusetts 200 Mill Road, Suite 325 Fairhaven, MA 02719 jloehrke@umassd.edu > sessionInfo() R version 2.8.1 (2008-12-22) i386-apple-darwin8.11.1 locale: en_US.UTF-8/en_US...
2008 Dec 07
1
custom panel help in lattice
...to xyplot doesn't work and results in an error "error using packet" xyplot(y~x|groups, data=test, groups=groups, panel=function(...){ panel.xyplot(...) panel.smooth.spline(...) }) I think this should be quite simple but I must be too simple minded. Thanks for any help. Jon Loehrke Graduate Research Assistant Department of Fisheries Oceanography School for Marine Science and Technology University of Massachusetts 200 Mill Road, Suite 325 Fairhaven, MA 02719 jloehrke@umassd.edu sessionInfo() R version 2.8.0 Patched (2008-11-24 r47017) i386-apple-darwin9.5.0 locale: en_US.UTF...
2008 Nov 17
2
How to calculate the linear distance between 2 points
Deemed colleagues I would appreciate your help with a sentence to calculate the linear distance between 2 geographical points (coordinates in UTM). In advance thnks for your attention, -- Ricardo Bandin Llanos rbandin@udec.cl Estudiante - Magíster Cs. m. Pesquerías Universidad de Concepción, Región del Bio-Bio, Chile Celular: (0056-41) 97949957 [[alternative HTML version deleted]]
2008 Dec 04
2
Plotting a kriging on a map
Hi list, Well, this time I’ve a doubt with mapping generation. I was already able to read and plot shapefiles, plot point on this map. All this without any problems, but now I want to do something that I think, only Golden Software Surfer is capable of. I would like to plot a kriging result on the existing map (map script below). Well I looked for on the net, but I was not able to be sure of