Displaying 20 results from an estimated 1300 matches similar to: "Plotting an agnes tree with images instead of labels?"
2008 Feb 21
1
linebreaks in mathplot
Dear HelpeRs,
I would like to do sg similar to:
plot(c(0,100), c(0,100), xaxs="i", yaxs="i", type="n")
txt <- paste("a =", a, "%\n b =", b, " km2", sep="")
text(95, 95, txt, adj=c(1,1))
just with the "km2" formatted with 2 in a superscript.
I thought
txt <- substitute("a = "*a*" %\n b
2003 Dec 11
1
cutree with agnes
Hi,
this is rather a (presumed) bug report than a question because I can solve
my personal statistical problem by working with hclust instead of agnes.
I have done a complete linkage clustering on a dist object dm with 30
objects with agnes (R 1.8.0 on
RedHat) and I want to obtain the partition that results from a cut at
height=0.4.
I run
> cl1a <- agnes(dm, method="complete")
2003 Dec 11
1
cutree with agnes
Hi,
this is rather a (presumed) bug report than a question because I can solve
my personal statistical problem by working with hclust instead of agnes.
I have done a complete linkage clustering on a dist object dm with 30
objects with agnes (R 1.8.0 on
RedHat) and I want to obtain the partition that results from a cut at
height=0.4.
I run
> cl1a <- agnes(dm, method="complete")
2004 Feb 04
1
Clustering with 'agnes'
Hello,
I had a question regarding clustering using the agnes() function from the 'cluster' package.
I was wondering if anyone knew how I can identify cluster points after running the agnes function.
For example, I created a dataset with points randomly scattered around (0,0), (0,1) and (1,0). After clustering, the dendrogram shows all the clustered points and I get the ordering and
2008 Sep 02
2
cluster a distance(analogue)-object using agnes(cluster)
I try to perform a clustering using an existing dissimilarity matrix that I
calculated using distance (analogue)
I tried two different things. One of them worked and one not and I don`t
understand why.
Here the code:
not working example
library(cluster)
library(analogue)
iris2<-as.data.frame(iris)
str(iris2)
'data.frame': 150 obs. of 5 variables:
$ Sepal.Length: num 5.1 4.9 4.7
2013 Jun 09
1
agnes() in package cluster on R 2.14.1 and R 3.0.1
Dear R users,
I discovered something strange using the function agnes() of the cluster
package on R 3.0.1 and on R 2.14.1. Indeed, the clusterings obtained are
different whereas I ran exactly the same code.
I quickly looked at the source code of the function and I discovered that
there was an important change: agnes() in R 2.14.1 used a FORTRAN code
whereas agnes() in R 3.0.1 uses a C code.
2011 Jun 27
3
New to R, trying to use agnes, but can't load my ditance matrix
Hi,
I'm mighty new to R. I'm using it on Windows. I'm trying to cluster using a
distance matrix I created from the data on my own and called it D10.dist. I
loaded the cluster package. Then tried the following command...
> agnes("E:D10.dist", diss = TRUE, metric = "euclidean", stand = FALSE,
> method = "average", par.method, keep.diss = n < 1000,
2005 Jan 25
4
agglomerative coefficient in agnes (cluster)
I haven't read the book, but could anyone explain more
about this parameter?
help(agnes) says that ac measures the amount of
clustering structure found. From the definition given
in help(agnes.object), however, it seems that as long
as
the dissimilarity of the merger in the final step of
the
algorithm is large enough, the ac value will be close
to
1. So what does ac really mean?
Thank
2006 Oct 23
1
Agnes Help
Hi,
I'm trying to use the cluster package and I'm having some trouble... I
always get the message:
> myagnes <- agnes("datafile.dat")
> Error: could not find function "agnes"
the package cluster is listed in the library() command, and I can reach the
help files from Agnes as well
I know that this can be some really easy thing to fix, but right now I have
no
2011 Aug 31
1
agnes not working
Hello!
I created a distances matrix for 13 objects using daisy (see the attached file).
I am trying to clusteranalyse it using agnes but it's not working.
What might be the problem:
mydistances<-read.csv("Results of daisy.csv")
mycluster<-agnes(mydistances, method="ward")
I am getting:
Error in agnes(mydistances, method = "ward") :
NA/NaN/Inf in foreign
2011 Jan 27
3
agnes clustering and NAs
Hello,
In the documentation for agnes in the package 'cluster', it says that NAs are allowed, and sure enough it works for a small example like :
> m <- matrix(c(
1, 1, 1, 2,
1, NA, 1, 1,
1, 2, 2, 2), nrow = 3, byrow = TRUE)
> agnes(m)
Call: agnes(x = m)
Agglomerative coefficient: 0.1614168
Order of objects:
[1] 1 2 3
Height (summary):
Min. 1st Qu. Median Mean 3rd
2009 Jun 22
1
coloring agnes plots
Hi all,
I am creating dendrograms using agnes and was wondering if it is
possible to add color to the leaves (and just the leaves).
For example, in the documentation, they have an example using the
"votes.repub" data set. If I wanted to make the word "Washington" green
(and only Washington), is it possible and if so how?
I can apply "summary" to the object
2003 Aug 04
1
hclust() and agnes() method="average" divergence (PR#3648)
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Anyone have a clue why hclust() and agnes() produce different results in the
example below when both use method="average"?? I'm not able to reproduce
2004 May 25
0
Agnes and Hclust
Hi,
I want to know if there is a difference between the two
hierarchical methods Agnes and hclust when there are used with
the same method and the same metric on the same data! I ask
this question because I executed the following program:
hc <- hclust(dist(AGRIINSTTableFinaleCR), "ward")
agnes<-agnes(dist(AGRIINSTTableFinaleCR),method="ward")
And clusters are not the
2007 Nov 14
0
Question about AGNES by Rousseeuw et al. in the package "cluster": How many clusters?
Dear all,
I am no stat wiz and I am just trying to use the AGNES algorithm at my
very modest level of statistical of understanding. I have difficulties
understanding the ouput from AGNES. My question is: how to interpret
the output, especially how do you I know which cluster solution is the
best? In SPSS, an Agglomeration Schedule table is produced and I used to
look at the biggest jump between
2010 Apr 05
0
Agnes in Cluster Package and index.G1 in the clusterSim package questions
Dear R Users:
I am new to R and I am trying to do a cluster analysis on a
single continuous variable using the Agnes [Agglomerative Nesting (Hierarchical
Clustering) ] in the Package ‘cluster’. I was able to apply this clustering method to
my data:
ward1 <- Agnes(balances, diss= FALSE, metric =
"euclidean", stand = TRUE, method = "ward", keep.diss
=TRUE, keep.data =
2008 Jun 11
0
Help!!! Agnes dendogram (Clustering)
The data "one" is a vector of 553 observations
agglone<-agnes(one, metric = "manhattan", stand = TRUE)
plot(agglone,which.plots=2, nmax=150)
My problem is in the dendogram, I can not see the nodes because it is too crowded. I have attached the diagram.
Any help is more than welcome. Thank you a lot!!!
2006 Aug 16
1
help about agnes
Hello.
I have the following distance matrix between 8 points:
[1,] 0.000000 3.162278 7.280110 8.544004 7.071068 9.899495 6.403124 8.062258
[2,] 3.162278 0.000000 5.000000 6.403124 4.472136 8.944272 6.082763 8.062258
[3,] 7.280110 5.000000 0.000000 1.414214 1.000000 5.000000 4.242641 5.830952
[4,] 8.544004 6.403124 1.414214 0.000000 2.236068 4.123106 4.472136 5.656854
[5,] 7.071068 4.472136
2014 Sep 24
2
Cluster -- Agnes function
Dear All,
I have clustered a patient data set by agnes.
I want to extract information for each cluster, I.E. all row ids
belonging to each cluster.
Thank you.
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2004 Jan 14
1
Using pam, agnes or clara as prediction models?
Hello list,
I am new to R, so if the question is rather silly, please ignore it.
I was wondering wether it would be possible to use the models generated
by pam, clara and the like as predictors? Scanning through the available
documentation shed no light (for me) upon the subject.
Regards,
Renald