search for: clump

Sorry, I did not make my question clear. Since I have a point theme with many points, some of them may clump together. the problems here are: 1. how to find clumps in a point theme? 2. the convex-hull extension I found only deal with all the points in a theme at each time? how to make each convex hull around each point clump automatically? Thanks. Xiaohua On 5/12/06, Bob Booth <bbooth at esri.c...

I am trying to generate two dimensional random coordinates. For randomly distributed data I have simply used >xy<-cbind(runif(100),runif(100)) However I also want to generate coordinates that are more uniformly distributed, and coordinates that are more contagiously distributed than the above. Can anyone make any suggestions Thanks. Dr Terry Beutel Rangeland Scientist Animal

Dear all, I have a set od 30,000 binary landscapes, which represent habitat and non-habitat cover. I need to generate images that identify those neighbour (rule 8) pixels as one patch ID, and a different patch ID for each clump of pixels. I coded it using labcon(adehabitat), but as some of my landscapes have so many patches, labcon not finish and entry in a eternal looping. By other side, I coded another solution using R & grass (r.clump), but the solution is so slow, and as I need to run it a lot of time, I will need...

Dear all, How to generate one outline polygon for each point clump? Are there any present functions in ArcView, ArcGIS, R or some freewares? I just had a quick look at the package adehabitat and did not find the function. To my knowledge, I could do it as follows: 1) make a grid map of my study area with cell values = 0; 2) assign 1 to the cells containing at lea...

...worry about how long it would take > on a big VM. We need to understand why it's slow > * is it due to the guest shuffling pages around? > * is it due to the virtio-balloon protocol sending one page > at a time? > + Do balloon pages normally clump in physical memory > - i.e. would a 'large balloon' message help > - or do we need a bitmap because it tends not to clump? > I didn't do a comprehensive test. But I found most of the time spending on allocating the pages and sending the PFNs to guest,...

...worry about how long it would take > on a big VM. We need to understand why it's slow > * is it due to the guest shuffling pages around? > * is it due to the virtio-balloon protocol sending one page > at a time? > + Do balloon pages normally clump in physical memory > - i.e. would a 'large balloon' message help > - or do we need a bitmap because it tends not to clump? > I didn't do a comprehensive test. But I found most of the time spending on allocating the pages and sending the PFNs to guest,...

...y just require return lowering to push an extra iPtr argument. Looking at the patch, it seems odd that ISD::LIBCALL still exists. Is the "CSE of libcalls" optimization really important in practice? If so, perhaps this should be done as an explicit dag combine optimization: if two clumps of flagged together nodes are identical and have the same inputs, replace one clump with the other. This would be a nice general solution instead of something specific to calls. Unrelated, but it would also be nice to make INLINEASM nodes have their own SDNode subclass someday instead of a...

> > Could provide more information on how to use virtio-serial to exchange > data? Thread , Wiki or code are all OK. > > I have not find some useful information yet. > > See this commit in the Linux sources: > > 108fc82596e3b66b819df9d28c1ebbc9ab5de14c > > that adds a way to send guest trace data over to the host. I think that's the > most relevant to

> > Could provide more information on how to use virtio-serial to exchange > data? Thread , Wiki or code are all OK. > > I have not find some useful information yet. > > See this commit in the Linux sources: > > 108fc82596e3b66b819df9d28c1ebbc9ab5de14c > > that adds a way to send guest trace data over to the host. I think that's the > most relevant to

...M isn't huge; so I worry about how long it would take on a big VM. We need to understand why it's slow * is it due to the guest shuffling pages around? * is it due to the virtio-balloon protocol sending one page at a time? + Do balloon pages normally clump in physical memory - i.e. would a 'large balloon' message help - or do we need a bitmap because it tends not to clump? * is it due to the madvise on the host? If we were using the normal balloon messages, then we could, during migration, jus...

...o model? To me it's clear that GlobalConstant is for modelling integers, not pointers. That alone may not necessarily be enough to motivate a representational change, but… > I understand where you’re coming from, but I think we’re modeling three different things, and disagreeing about how to clump them together. The three things I see in flight are: > > 1) typical globals that are laid out in some unknown way in the address space. > 2) globals that may be tied to a specific knowable address range due to a limited compilation model (e.g. a deeply embedded core) that fits into an im...

...uot;END" can be skipped. That's the first 90 lines. Then I need to do something like this: while data still exist in the file { skip 3 lines scan 81 values into temp scan 82nd value, which is 11, 12, 21, 22. Depending on value, temp is added to one of these vars } The data are written in clumps. Each clump has 3 lines with info I don't need. Then it has 81 values which are the actual data I want to read into some variable "temp" Then the 82nd value tells me which of 4 variables to add temp onto. Any tips on how to approach this using scan() greatly appreciated. I know I ca...

Right now in my view, I have a whole HUGE clump of <% if current_user %> and then <% if current_admin %> and then <% if current_teacher %> and then all that other stuff in my view. I have a ginourmous chunk of if and else statements in my views... is there a way to make it prettier? The if and else''s almost all have...

A student is trying to cluster some data. Tree-building things seem to be pretty hopeless (we've tried most of the ones in R, I think). Multi-dimensional scaling produces somewhat tantalising results: things do clump together somewhat, but the clusters overlap a lot. I was wondering if these was an artefact of squeezing it down to 2D, and whether 3D might be better. So loc <- cmdscale(dist(scale(log(data))), k=3) plot(loc) _but_ I still get a 2D plot. I know about persp(), and a bunch of other things in R...

...910 and so on. The key information I am looking for is when the NA's start and their length. The closest thing I can use that I know about is timePlot in the openair package with statistic="frequency" but it only gives monthly summary data, and does not tell me if the missing data are clumped together or are dispersed. VR Jim James T. Durant, MSPH CIH Emergency Response Coordinator US Agency for Toxic Substances and Disease Registry Atlanta, GA 30341 770-378-1695 [[alternative HTML version deleted]]

...rophylactic effect on virus spread :) Just my .02. I have never run a mailinglist so I don't know if this is possible or not. --- Yours, Charles T. Houghtby IV IT Manager, Rapid Appraisal, INC --- During a grouse hunt in North Carolina two intrepid sportsmen were blasting away at a clump of trees near a stone wall. Suddenly a red-faced country squire popped his head over the wall and shouted, "Hey, you almost hit my wife." "Did I?" cried the hunter, aghast. "Terribly sorry. Have a shot at mine, over there." - "Oh" my new operator calls as...

...ould take > > on a big VM. We need to understand why it's slow > > * is it due to the guest shuffling pages around? > > * is it due to the virtio-balloon protocol sending one page > > at a time? > > + Do balloon pages normally clump in physical memory > > - i.e. would a 'large balloon' message help > > - or do we need a bitmap because it tends not to clump? > > > > I didn't do a comprehensive test. But I found most of the time spending > on allocating the pages a...

...ear that GlobalConstant is > for modelling integers, not pointers. That alone may not necessarily be > enough to motivate a representational change, but… > > I understand where you’re coming from, but I think we’re modeling three > different things, and disagreeing about how to clump them together. The > three things I see in flight are: > > 1) typical globals that are laid out in some unknown way in the address > space. > 2) globals that may be tied to a specific knowable address range due to a > limited compilation model (e.g. a deeply embedded core) that f...

I think I''ve found a mistake in the http://www.shorewall.net/ipp2p.html documentation. I''ve been trying to get traffic shaping working on the p2p traffic (Using ipp2p and wonder shaper) and lossing clumps of hair in the process. I followed the web page documentation but the "tcpost" rule that clasifies the packet and actually starts the "castration" process never matached any packets.... Until! I added a ":C" to the final two lines on that page (although it'...

Hello, I got error message when applying the plot function to the cox.zph object to create the Schoenfeld residual plots. > plot(zph.revasFit[1]) Error in plot.window(xlim, ylim, log, asp, ...) : need finite 'ylim' values In addition: Warning messages: 1: NaNs produced in: sqrt(x$var[i, i] * seval) 2: no non-missing arguments to min; returning Inf in: min(x) 3: no