similar to: About clustering techniques

HI R users With clara function I get a data frame (maybe this is not the exact word, I'm new to R) with the following variables: > names(myclara) [1] "sample" "medoids" "i.med" "clustering" "objective" [6] "clusinfo" "diss" "call" "silinfo" "data" I want to

Hello everyone I am trying to use CLARA method for finding clusters in my spatial surface temperature data and noticed one problem. My data are in the form lat,lon,temperature. I extract lat,lon and cluster number for each point in the dataset. When I plotted a map of cluster numbers I found empty areas in the map. The point is that the number of points that were assigned a cluster number are

Hi everyone I have a question about clustering. I've managed using CLARA to get a clustering analysis of a large data set. But now I want to find which is the right number of clusters. The clara.object gives some information like the ratio between maximal and minimal dissimilarity that says (maybe if lower than 1??) if a cluster is well-separated from the other. I've also read something

Does anyone have any experience retrieving latitutde and longitude for an address from the Google Maps API? I'd like to have an R script that submits a street address, city, state, and zip code and returns the coordinates. So far, I've been submitting the coordinates from another program, then loading the coordinates in R and merging them back into the data frame I want to use.

Dear R helpers, I have a large data set with 36 variables and about 50.000 cases. The variabels represent labour market status during 36 months, there are 8 different variable values (e.g. Full-time Employment, Student,...) Only cases with at least one change in labour market status is included in the data set. To analyse sub sets of the data, I have used daisy in the cluster-package to create

Hi everyone As I couldn't succeed with manual installation of Rmpi I decided to start again from the beginning. I removed R and MPICH in my Ubuntu Hardy installation. Then, to avoid any dependencies problems I have installed MPICH and R from synaptic, not from sources. But now I can't install Rmpi. An error message appears when trying to install Rmpi, you can find in

Hi Im maintaining a samba server and Im with an unknown files inside /var/spool/samba. It seems to refer users but I don't know If I can delete something or not. files are type -rw------- 1 usuari Domain Users 0 2012-03-07 17:05 smbprn.00004993.KyICia Someone knows what is it? Thanks

Hi R-users I'm a beginner with R and statistics, so I need some help to start my data analysis. I've been reading some docs and tutorials on R and cluster analysis. I've got a large dataset (102000 points) with values of longitude, latitude and temperature and want to see if I can find groups (clusters). Following some tutorials I can look for principal components but get an error

Is there any way to give a "decent" title after I plot something generated by decompose? For example: # generate something with period 12 x <- rnorm(600) + sin(2 * pi * (1:600) / 12) # transform to a monthy time series y <- ts(x, frequency=12, start=c(1950,1)) # decompose z <- decompose(y) # plot plot(z) Now, the title is the ugly "Decomposition of additive time

Hi everyone I am new to R and have a question about missing values. I am trying to do a cluster analysis of monthly temperatures and my data are 14 columns with spatial coordinates (lat,lon) and 12 monthly values: /lat - lon - temp1 - //temp2 - temp3 - .... - //temp12/ If I omit missing values (my missing values are 99.00) with /mydata <- na.omit(mydata)/ every row with a

Are any plans for an API that would allow ZFS commands including snapshot/rollback integrated with customer''s application? Thanks, Cherry

Dear R Users, I am trying to get plot.zoo to place monthy tickmarks/labels for a time series which spans daily data going back a bit over a year. Right now, I am getting only one tick mark on the x-axis for the beginning of 2008. How can I force plot.zoo to place more regular x-axis tick marks on a monthly basis ? Thanks in advance, Tolga Generally, this communication is for informational

Hi everyone I want to install Rmpi to use R in parallel mode in a Linux cluster (Ubuntu, Hardy Heron). It seems to be properly installed but a problem appears when loading Rmpi library. R version 2.11.1 (2010-05-31) > library("Rmpi") Error: package 'Rmpi' was built before R 2.10.0: please re-install it Should I remove R-2.11 and install R-2.10? I have tried to

I''m trying to set up the authlogic gem for rails, just after logging my user I get this weird error: NoMethodError in Usuari sessionsController#create undefined method `valid_password?'' for #<Usuari:0xb69b9a54> RAILS_ROOT: /home/cocozz/dev/enruscats Application Trace | Framework Trace | Full Trace

Greetings all, Every now and then, as we engage in serious discourse, it seems appropriate to throw something into the mix that might digress and brighten the day. So, what is a Strouhal Number? "For an animal or insect in flight, the Strouhal number is determined by the frequency (f) of wing strokes, multiplied by the amplitude (A) of the wing, divided by the animal?s forward speed (U)

I wish to make modifications to the plot.pedigree function in the kinship package. My attempts to contact the maintainer have been unsuccessful, but my question is general, so specifics of the kinship package might not be an issue. My first attempt was to make a new function Plot.pedigree in the .GlobalEnv which mostly achieved what I wanted to. However, I'm sure that's not the tidiest

I like the fact that the postscript function enables the possbiility of a more useful title than before. However, I'd prefer the default to be the file name. It's very simple for me to make my own postscript function that does just that simply by setting title = file. I always use onefile = TRUE, so it always works (so far). However, I'm a little reluctant to do that in case some

I like the fact that the postscript function enables the possbiility of a more useful title than before. However, I'd prefer the default to be the file name. It's very simple for me to make my own postscript function that does just that simply by setting title = file. I always use onefile = TRUE, so it always works (so far). However, I'm a little reluctant to do that in case some

On Tue, 2 Oct 2001, safemode wrote: > On Tuesday 02 October 2001 08:14, Nathan I. Sharfi wrote: > > I doubt this; why would any self-respecting label advertise that their > > music is capable of being ripped and distributed electronically? > > > > On Tue, 2 Oct 2001, safemode wrote: > > > > <snip> > > > > > You're probably going to

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