Re: [R] similarity measure

2010-03-29 Thread Steve Lianoglou
Hi, On Fri, Mar 26, 2010 at 7:12 AM, karuna m wrote: > hi all, > I am doing hierarchical clustering using similarity measures for binary data > using package ade4 and hclust function. For method=8 and method = 9 of > dist.binary, I am getting Na values. Hence, hclust function is giving error >

[R] similarity measure

2010-03-26 Thread karuna m
hi all, I am doing hierarchical clustering using similarity measures for binary data using package ade4 and hclust function. For method=8 and method = 9 of dist.binary, I am getting Na values. Hence, hclust function is giving error as Error in hclust(d8, method = "ward") :   NA/NaN/Inf in foreig

Re: [R] similarity measure for binary data

2009-10-30 Thread Javed Pathan
Hi Karuna, You can try vegdist() function in the vegan package. The function computes dissimilarity indices that are useful for or popular with community ecologists. All indices use quantitative data, although they would be named by the corresponding binary index, but you can calculate the bina

Re: [R] similarity measure for binary data

2009-10-30 Thread Rodrigo Villegas
The 'Gower' metric is one that is commonly used. Rod On Thu, Oct 29, 2009 at 10:22 AM, karuna m wrote: > I am doing hierarchical clustering with cluster package.  I couldnot find > similarity measures like matching coefficient, Jaccard coefficient and sokal > and sneath. Could anyone please te

Re: [R] similarity measure for binary data

2009-10-30 Thread Rodrigo Villegas
The 'Gower' metric is one that is commonly used. R On Thu, Oct 29, 2009 at 10:22 AM, karuna m wrote: > I am doing hierarchical clustering with cluster package.  I couldnot find > similarity measures like matching coefficient, Jaccard coefficient and sokal > and sneath. Could anyone please tell

[R] similarity measure for binary data

2009-10-29 Thread karuna m
I am doing hierarchical clustering with cluster package.  I couldnot find similarity measures like matching coefficient, Jaccard coefficient and sokal and sneath. Could anyone please tell package with similarity measures for binary data? kind regards, Ms.Karunambigai M PhD Scholar Dept. of Bios

[R] similarity measure for two different clusters

2007-10-12 Thread Julia Kröpfl
Hey there! I would like to justify the stability of the cluster of a subset of my data by comparing it to another cluster of another subset. Does there exist a quantitative similarity measure that can be applied? I am open for any suggestions, thx for your help, Julia -- _