search for: canberra

Hi, I am using R 2.9.0. It seems the documentation for the calculation of Canberra distance using stats::dist is ambiguous. Does anyone have the original definition given in the Lance & Williams paper from Aust. Comput. J. 1, 15-20, 1967? When there are zeros at certain position in both vectors, they are not omitted as documented in the function (see below). Instead, Canberr...

Hi the list, According to what I know, the Canberra distance between X et Y is : sum[ (|x_i - y_i|) / (|x_i|+|y_i|) ] (with | | denoting the function 'absolute value') In the source code of the canberra distance in the file distance.c, we find : sum = fabs(x[i1] + x[i2]); diff = fabs(x[i1] - x[i2]); dev = diff/sum; which cor...

...) a.res1 <- pvclust(t(s), method.hclust="complete", method.dist="euclidian", nboot=500) a.res2 <- pvclust(t(s), method.hclust="complete", method.dist="maximum", nboot=500) a.res3 <- pvclust(t(s), method.hclust="complete", method.dist="canberra", nboot=500) a.res4 <- pvclust(t(s), method.hclust="ward", method.dist="euclidian", nboot=500) a.res5 <- pvclust(t(s), method.hclust="ward", method.dist="maximum", nboot=500) a.res6 <- pvclust(t(s), method.hclust="ward", method.dist=&q...

Hi! Its not an R specific question but had no idea where to ask elsewhere. Does anyone know the orginal reference to the CAMBERA DISTANCE? Eryk. Ps.: I knew that its an out of topic question (sorry). Can anyone reccomend a mailing list where such questions are in topic?

Hi, I misunderstand the definition of Canberra distance in R. On Internet and in function description pages of dist() from stats and Dist() from amap, Canberra distance between vectors x and y, d(x,y), is : d(x,y) = sum(abs(x-y)/(x+y)) But in use, through simple examples, we find that the formula is : d(x,y) = (NZ + 1)/NZ * sum(abs(x-y)/(x...

Gives strange results. I get 'weird' dendrograms with canberra / binary distance metric and median / centroid cluster methods. Is this just my data? Dan

Canberra distance is defined in function `dist' (standard library `mva') as sum(|x_i - y_i| / |x_i + y_i|) Obviously this is undefined for cases where both x_i and y_i are zeros. Since double zeros are common in many data sets, this is a nuisance. In our field (from which the distance is comin...

Canberra distance is defined in function `dist' (standard library `mva') as sum(|x_i - y_i| / |x_i + y_i|) Obviously this is undefined for cases where both x_i and y_i are zeros. Since double zeros are common in many data sets, this is a nuisance. In our field (from which the distance is comin...

Hi All, I'm working on analyzing a large data set, lets asume that dim(Data)=c(1000,8700). I want to calculate the canberra distance between the columns of this matrix, and using a toy example ('test' is a matrix filled with random numbers 0-1): > system.time(d<-as.matrix(dist(t(test), method = "canberra", diag = FALSE, upper = FALSE, p = 2))) user system elapsed 1417.713 3.219 1421.14...

Hi there, Is there someone over there knows a method or script that can copy a large volume of data (in folders) from PCs to a samba server (suppose there is enough space there)? I know using smbclient or smbtar can backup data on PCs to samba server, but it is written in tar files.I wonder whether this method can handle a large folder, say, in 10GB size. Also, using smbclient with mget and

When I start FF from command line, I'm getting a lot of errors similar to these -- Gtk-Message: Failed to load module "canberra-gtk-module" Gtk-Message: Failed to load module "pk-gtk-module" Gtk-Message: Failed to load module "canberra-gtk-module" Gtk-Message: Failed to load module "pk-gtk-module" Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 84: Having mul...

...problem is not entirely obvious, I post this to R-devel as RFC: help(dist) says: >> Missing values are allowed, and are excluded from all computations >> involving the rows within which they occur. If some columns are >> excluded in calculating a Euclidean, Manhattan or Canberra >> distance, the sum is scaled up proportionally to the number of >> columns used. If all pairs are excluded when calculating a >> particular distance, the value is `NA'. but the C code in ....../src/library/mva/src/distance.c, has, e.g. for the Euclidean distance :...

...B", "SANN") in the optim function. So I would like to have a vector with c("Nelder-Mead", "BFGS", "CG", "L-BFGS-B", "SANN") Or for instance the 'method' in the dist function can be supplied with euclidian,maximum,manhatten, canberra,binary,minkowski. Is there someway to extract this so I would have a vector with c("euclidian","maximum","manhatten", "canberra","binary","minkowski"). Thanks

...flatpak to see if i could overcome the flatpak yubikey problem. Thunderbird starts but then crushes with the following message "flatpak run org.mozilla.Thunderbird Gtk-Message: 09:15:00.372: Failed to load module "pk-gtk-module" Gtk-Message: 09:15:00.372: Failed to load module "canberra-gtk-module" Gtk-Message: 09:15:00.372: Failed to load module "pk-gtk-module" Gtk-Message: 09:15:00.372: Failed to load module "canberra-gtk-module" " I would prefer to use evolution than thunderbird. Any ideas how to solve the calendar or flatpak and yubikey problem?...

Dear Lister, I understand merge() can be used to join 2 data frames based on 1 variable. But how about merge based on more than 2 variables? Thank you so much! -- WenSui Liu (http://spaces.msn.com/statcompute/blog) Senior Decision Support Analyst Health Policy and Clinical Effectiveness Cincinnati Children Hospital Medical Center [[alternative HTML version deleted]]

...#39;all, Seems my Skype installation has stopped working. I have skype-4.3.0.37-2.el6.i686.rpm from the Nux repo. [mlapier at peach ~]$ skype %U (<unknown>:27070): Gtk-WARNING **: Unable to locate theme engine in module_path: "clearlooks", Gtk-Message: Failed to load module "canberra-gtk-module" Gtk-Message: Failed to load module "pk-gtk-module" I checked the yum log. Other than the 6.7 upgrade these are all the transactions I see. Aug 09 20:32:28 Updated: firefox-38.1.1-1.el6.centos.x86_64 Aug 11 20:58:39 Updated: firefox-38.2.0-4.el6.centos.x86_64 Aug 11 20:...

...ra mas información revisa ?sapply, ?lapply y ?lm. En caso de que > necesites otros parámetros del modelo de regresión, te sugiero revisar > el resultado de > > modelo <- lm(y ~ efectos[, 2]) > names(summary(modelo)) > > Saludos cordiales, > > Jorge Velez > JCSMR, Canberra > > > 2015-07-04 12:01 GMT+10:00 Fernando Macedo <fermace en gmail.com > <mailto:fermace en gmail.com>>: > > Buenas a todos, acá estoy yo de nuevo con problemas de loops. > > Tengo el siguiente problema: un vector de datos (y) y una serie de > efe...

...geivanvelez en gmail.com> escribió: > De nada, Fernando. > > Otra alternativa es usando mclapply() en el paquete "parallel". Estoy en > Mac/Linux y funciona muy bien. Seguramente hay algunos equivalentes en > Windows. > > Saludos, > > Jorge Velez > JCSMR, Canberra > > > > 2015-07-04 12:17 GMT+10:00 Fernando Macedo <fermace en gmail.com>: > >> Muchas gracias Jorge! >> >> Si la opción del loop con for ya la tenía implementada y me demora >> bastante por eso quería probar con apply o en este caso sapply, muchas >...

...here. I suspect (but can't prove) that this may have been the cause of some audio issues between these two servers as the phones on either end use alaw, so Asterisk is transcoding to g729 across the IAX2 link. Thanks, Avi -- National Manager - Special Projects < Sydney / Melbourne / Canberra / Hobart / London /> 2/340 Gore Street T: +61 (0) 3 9235 5400 Fitzroy, VIC F: +61 (0) 3 9235 5444 3065 W: http://www.squiz.net ..... > > Open Source - Own It - Squiz.net ...... />

...usy sheering season. Now, I was hoping to get some work on Ferret done at night but getting the internet connected turned out to be next to impossible thanks to Telstra. I should point out that my parents property is not that remote. We are less that 4 hours drive from Sydney and about 1 hour from Canberra (ur closest metropolitan area) but for some reason we get no mobile (cellphone) or wireless internet coverage and the phone lines are so bad that even dial up drops out before gmail will load. Dealing with Telstra was a nightmare and they ended up giving us the run around, not delivering anything t...