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Hi All, I'm using the following code to produce some stacked bar graphs. *setwd("C:\\Users\\Tinus\\Documents\\NMMU\\R\\Seamounts")* *SChla <- read.csv("SM_Chla_data.csv")* * * *#Extract mean values from data file* * * *Coral <- SChla[185:223,] #Reduce SChla to Coral only* *coral <- with(Coral , aggregate(cbind(Pico, Nano, Micro), list(Depth),FUN=mean))* *rownames(coral)...

...u.Nano","u.Micro"] <- sapply(z, mean)* *results[i,"sd.Pico","sd.Nano","sd.Micro"] <- sapply(z, sd)* *}* * * *print(results)* Please can some one advise me how to fix the error or maybe have an alternative solution I will appreciate it. Thank you. Tinus [[alternative HTML version deleted]]

...de of the PCA plot, but success still alludes me. Can you guys please advise how I can achieve this. I used locater() to obtain coordinates for below the Comp.1 axis. Using these coordinates the legend disappears. Below is the code for the PCA and legend. Thanks in advance for the help. Regards Tinus r.cols <- rainbow(length(unique(SEData$Seamount))) pca1 <- princomp(SEData3, scores=TRUE, cor=TRUE) biplot(pca1, var.axes= TRUE, xlabs=rep("",nrow(SEData3)),main="Seamounts PCA") rrr <- apply(pca1$scores[,1:2],2, range) par(usr=as.vector(rrr)) points(pca1$scores[,1:2]...

...p me to add/display my data points. I would also like to fill the contours in grayscale/colour (e.g. levels 0, 20, 40, 60, 80. 100 %) and add a legend to the graph. As of yet I haven't tried to figure out how to add the stations as a secondary axis to the plot. Thanks for the help and advice. Tinus -- M.J. Sonnekus PhD Candidate (The Phytoplankton of the southern Agulhas Current Large Marine Ecosystem (ACLME)) Department of Botany South Campus Nelson Mandela Metropolitan University PO Box 77000 Port Elizabeth South Africa 6031 Cell: 082 080 9638 E-mail: tsonnekus@gmail.com [[alternative...

I am running Debian on a LAN. I am trying to send popup messages(Winpopup protocol) but just get the same error over and over. We have a WinXP machine named "Mindelessdemon"(He is actually a very nice guy, don't get foolled by the demon stuff), a Win2k machine called "Whitehead" and a win98 machine called "Wyrm". I cant connect to the WinXP or Win2k machine