search for: strain2

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2004 Oct 23
1
Legend/Substitute/Plotmath problem
Hello, I seem unable to construct a legend which contains a substitution as well as math symbols. I'm trying to do the following: strain2 <- "YJG48" legend.txt <- c( substitute( strain * %==% * "YJG45, rpn10" * %Delta%, list(strain=strain2) ), "Verhulst/Logistic", "Malthus" ) legend( 100,2.5, legend.txt, cex=0.75, bty="n", pch=c(20,NA,NA), lty=c(NA,1,2) I d...
2009 Apr 07
2
Minimum Spanning Tree
Hi all, I'm very new to R and read a few tutorials, however I'm having difficulty trying to figure out how to plot a minimum spanning tree. I have a csv file that contains an n-by-n matrix of distances between strains of bacteria called matrix.csv. Looks like: id,strain1, strain2,strain3 strain1,0,.2,.8 strain2,.3,0,.7 strain3,.4,.6,0 I've been messing around with some information I've found on the web that prints out an mst, however I think it does it with random values, instead of values provided in a dataset (like from my csv file). Here's what I tried look...