similar to: neighbors of an element of a matrix

Hi, I wonder if there is any function which gives the number of times which an element is repeated in the matrix. Let say there is a matrix, I would like to find out how many times number 2 has been repeated in the matrix, or in other words, how many elements of the matrix are equal 2. Thanks for your help, Rostam [[alternative HTML version deleted]]

Hi R users, I am trying to create a matrix, but R has problem with the size of dim, wondering if there is anything that I can do? > a <- diag(147456) Error in array(0, c(n, p)) : 'dim' specifies too large an array Thanks for your help Rostam [[alternative HTML version deleted]]

Hi, I have three matrices, Red, Green and Blue. I would like to produce a matrix which is the combined values of Red, Green and Blue matrices. I know rgb() does the job, but the values are not between 0-255, they are in the following format: "#2C312C" I would like to have the values between 0-255. I wonder if you could tell me what I can do... Thanks for your help, Rostam

Dear all, We are trying to fit a non linear model to dispersal data. It seems that sometimes when the fit of the model of the data is not very good we start getting singular gradient errors. However if we modify slightly the data this won't occurr. We have also tried changing the initial parameter values and the algorithm for fitting in nls but didn't help. So we ended up programming a

Dear all, I am using the package igraph and try to use the neighbors() function. I am a bit confused, see the following : Given a graph g with 18 vertices. Names of the vertices are indicated by : > V(irt.graph)$name [1] "AT2G41240" "AT3G13610" "AT3G02470" "AT3G30775" "AT3G18290" "AT4G13770" "AT1G01580"

Hi R users, I would like to create an image using three matrices which contain the values of Red, Green, and Blue of each pixel, i.e. one matrix which has values of red, one which has values of green, and one which has values of blue. The values are between 0 and 1 instead of 0-255. I have obtained the matrices using the getChannels of pixmap library. I wonder if anyone knows how to create the

Dear R-users, Is there a procedure to identify neighbors in a regular lattice using either a "rook" or a "queen" criterium? To be more specific, suppose: My lattice: 1 2 3 4 5 6 7 8 9 "Rook" Neighbors 1 has neighbors 2,4 2 has neighbors 1,3,5 ... 5 has neighbors 2,4,6,8 "Queen Neighbors" 1 has neighbors 2,4,5 2 has neighbors 1,3,4,5,6 For each case,

Hi everyone, I have a matrix containing color values of an image same as following, [1,] "#444444" "#444444" "#434343" "#404040" "#3D3D3D" "#3D3D3D" "#3E3E3E" [2,] "#414141" "#414141" "#414141" "#404040" "#3F3F3F" "#3F3F3F" "#3F3F3F" [3,] "#3E3E3E"

Hi, I would like to run a saved script in windows command line. Some command which takes the filename as an argument, and runs it in R. Thanks, Rostam [[alternative HTML version deleted]]

I was wondering if there is a way in R to find k nearest neighbors of various orders, say order 2, 3, or 4. In otherwords neighbors of neighbors of neighbors. You get the idea. I know that I can use knearneigh(matrix.data, k) but this only gives me the k nearest neighbors and not of a particular order. Thanks in advance. -- View this message in context:

Hello, I have samba4 rc4 installed and connected it to WIN Server 2003 AD DC, as a DC. and when I see the replication activities, I didn't see any outbound neighbors... is that normal? do anyone know why? [root at MYSERVER2 ~]# samba-tool drs showrepl Default-First-Site-Name\MYSERVER2 DSA Options: 0x00000001 DSA object GUID: 017f9482-5157-4884-aed8-9251a997b047 DSA invocationId:

Is this a problem? Does this mean no replication links exist? michael at sles-bree:~> samba-tool drs showrepl -k yes Bree\SLES-BREE DSA Options: 0x00000025 DSA object GUID: 7ea641b0-d418-4c74-a4fa-c15b852467b8 DSA invocationId: 1017ff29-756c-4777-b395-b481f4b5387c ==== INBOUND NEIGHBORS ==== ==== OUTBOUND NEIGHBORS ==== ==== KCC CONNECTION OBJECTS ==== Connection -- Connection name:

Homework?? There is a no homework policy on this list. Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Sun, Jul 23, 2017 at 11:43 AM, Davide Piffer <pifferdavide at gmail.com> wrote: > I have a df with a vector v. For

Dear all, I got point data of trees. I was wondering if anybody has experience in searching the neighbors within a specified distance efficiently. X Y Z 99 34 65 98 35 29 98 34 28 99 33 33 98 32 23 99 33 21 99 33 22 99 32 24 99 30 23 ... What I want to do is : searching for the neighbors with a distance R for each tree & the neighbor must have a bigger Z.

hi, I have a dataset (the netflix dataset) which is basically ~18k columns and well variable number of rows but let's assume 25 thousand for now. The dataset is very sparse. I was wondering how to do kmeans/nearest neighbors or kernel density estimation on it. I tired using the spMatrix function in "Matrix" package. I think I'm able to create the matrix but as soon as I pass

I am looking for an efficient way to find near neighbors... More specifically... I have two sets of points: A & B and I want to find points in set B which are closer to set A than some cutoff (or n-closest) I will appreciate very much any pointers... Ryszard -------------------------------------------------------------------------- Confidentiality Notice: This message is private and may

No homework. Just a genuine question On 23 July 2017 at 22:00, Bert Gunter <bgunter.4567 at gmail.com> wrote: > Homework?? There is a no homework policy on this list. > > Cheers, > Bert > Bert Gunter > > "The trouble with having an open mind is that people keep coming along > and sticking things into it." > -- Opus (aka Berkeley Breathed in his

How do you specify matrix location a[i,j] (or a[i-1,j], etc.) in a "for" loop? I am looking for a flexible method of indexing neighbors over a series of lags (1,2,3...) and I may wish to extend this method to 3D arrays. Example: Data matrix > fun [,1] [,2] [,3] [1,] 1 5 9 [2,] 2 6 10 [3,] 3 7 11 [4,] 4 8 12 For each element a[i,j] in

Hello, if you enter samba into the windows domain in a separate site where there is no one, then outgoing neighbors do not appear, maybe someone has encountered this problem? if anything, the sites are interconnected via site link and replication between them is set in the range of 15 minutes, there was also an attempt to make repadmin /kcc from windows and samba_kcc --attempt-live-connections,

Hello, if you enter samba into the windows domain in a separate site where there is no one, then outgoing neighbors do not appear, maybe someone has encountered this problem? if anything, the sites are interconnected via site link and replication between them is set in the range of 15 minutes, there was also an attempt to make repadmin /kcc from windows and samba_kcc --attempt-live-connections,