search for: metr

>It will be about 100 phones at about 20 locations all within >about 4 miles of each other. Perhaps a more pressing question might be how you are going to backhaul Ethernet in a 4-mile radius. You can't run a Cat 5 cable more than 100 metres reliably, and using Ethernet repeaters every hundred metres or so isn't practical. You will need a fiber backbone or something like that. What is your plan to create an Ethernet network to tie these locations together?

> I was given the challenge recently of creating a LAN-LAN bridge between > two > buildings several > hundred metres from each other, using only existing Cat 3 wiring and > without > having to resort > to an expensive and finicky 5 Ghz wireless link. I was able to create a 90 > megabit link for > about $3,000 Cdn with new PC's, CentOS 4.1, and the newly avaliable Black > Box VDSL Ethernet...

...tion function, mark correlation function) for which I need to create an observation window (window=owin) from which the spatial analysis is generated. The command I used to create this observation window as follows: X1<- ppp(x, y, window=owin(c(80.58,144.96),c(101.06,165.13)), unitname=c("metres","metres"), marks=dbh) I managed to create the observation window with this command. However, my data (x,y coordinates of objects in a square plot) didn't fit into this observation window's frame. It seems like I need to 'move or twist' my data by a certain angle...

...longitude...can anyone expand on this a little for me, and what would be the best coordinate system to use? I have my data in a geographic coordinate system, WGS84, decimal degrees....is this the wrong format for such analyses? I have also converted my data in the UTM projection and so have it in metres....(ranging from 480,000 to 550,000 E and 170,000 to 230,000 N). If I was to use the UTM coordinates, should I be using the actual coordinates in metres, or should I convert this into an arbitrary coordinate system (i.e. from 0 - 1) somehow? I have noticed that running an analysis on the da...

I have to provision several dozen * users to a seperate building on our campus in the same subnet. Ordinarily, I'd just run a gigabit cat6 cable to another switch if it doesn't violate the 100 metre rule, but this building is several hundred metres away from my backbone. My only option for cabling to the remote building is copper. My plan is to provision them with a Linux bridge with 4 NIC's: 1 gigabit to the backbone, and three bonded together as a single interface (90 mbit aggregate), t...

I was given the challenge recently of creating a LAN-LAN bridge between two buildings several hundred metres from each other, using only existing Cat 3 wiring and without having to resort to an expensive and finicky 5 Ghz wireless link. I was able to create a 90 megabit link for about $3,000 Cdn with new PC's, CentOS 4.1, and the newly avaliable Black Box VDSL Ethernet Extender, which supports 30...

Dear All, This may sound like a dumb question but I am trying to use a mixed model to determine the predictors of bat activity along hedges within 8 sites. So my response is continuous (bat passes) my predictors fixed effects are continuous (height metres), width (metres) etc and the random effect is site - can you tell me if the fixed effects can be continuous as all the examples I have read show them as categorical, but this is not covered in any documents I can find. Help! Emma

Dear R help list I have recently started using R to visualize time series of water level measurements. The code I wrote does exactly what I want: plot(x, a$B112, axes=FALSE, ylim=c(405,410), col="red", pch=15, type="o", ylab="metres above sea level", main="Main Plot Title") axis(2, at=405:410, tck=1, col="gray60") axis.Date(1, at=seq(as.Date("2004-01-01"), as.Date("2008-06-01"), by="month"), labels=seq(as.Date("2004-01-01"), as.Date("2008-06-01"), b...

...lt;= range[2]] > > > > and this comparison results in character(0), when plotting with this > > artificial example. > > > > plot(1:100, seq(405,410,length=100), axes=FALSE, ylim=c(405,410), > > col="red", pch=15, > > type="o", ylab="metres above sea level", main="Main Plot Title") > > axis(2, at=405:410, tck=1, col="gray60") > > axis.Date(1, at=seq(as.Date("2004-01-01"), as.Date("2008-06-01"), > > by="month"), labels=seq(as.Date("2004-01-01"), as.Dat...

Dear list, I'm trying to run the following for loop: I have two list, the first one is $'5684' CFISCALE "5684" RAGSOCB "Brembo" $'4532' CFISCALE "4532" RAGSOCB "Stella" which is this one in terms of dput: dput(kk) structure(list(`5684` = structure(c("5684", "Brembo",

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Hello, I am working with a dataset which essentially has only one column - a list of distances in metres, accurate to several decimal places. eg distance 1000 6403.124 1000 1414.214 1414.214 1000 I want to organise this into a frequency table, grouping into categories of 0 - 999, 1000 - 1999, 2000-2999 etc. I'd also like the rows where there are no data points in that category to contain 0,...

Hi i''m using ferret to enable geographical postcode. I take a postcode and distance in miles from the user, strip off the outcode and then retrieve the associated x y coordinates in metres from the db. Then i get two temp x''s and y''s and search for all results that are within the box, see code below. Problems start to occur when i search on big distances so for example 40 miles from "G1" VoObject.ferret_index.search(" x:[206826 335573] AND y:[59...

I'm looking at setting up Asterisk for a completely IP environment. All intercompany calls. I work for a ski area. I currently use a 3Com Superstack for in our office. And an old small town phone system for up at the mountain. The phone system is dying and I'm hoping to bring IP to replace the old phones. It will be about 100 phones at about 20 locations all within about 4 miles of each

Background: OS: Linux Mandrake 10.1 release: R 2.0.0 editor: GNU Emacs 21.3.2 front-end: ESS 5.2.3 --------------------------------- Colleagues I have a wind speed time series with a normal frequency distribution and a spike in the 5 metres/second bin. The most likely explanation is that the instrument was returning duplicate values at this speed. To check this, I want to extract all the unique times from the series. However, unique() works with vectors and the object is POSIXt class. I've looked for a similar function to uniqu...

...e a topographic map of an island - the filled.contour function works fine except i am experiencing difficulty trying to represent the sea properly. Basically I want the default colour blue for any instance where z=0, if I simply use the default topo.color I get shades of blue for z values up to 220 metres. Is there a way in which I can specify terrain.color for all values of z>0 but blue for z=0 - or is there another way of acheiving this simply? Thanks, Laura

...s) using the package zoo and would like to add a title for each separate panel. I am using the script: z <- with(mydata,zoo(cbind(mydata$Water.level,mydata$Submerged.plants, mydata$Crayfish.CPUE,mydata$Carp.CPUE),Year)) plot(z,type="b",pch=16,lty=2,xlab="Year",ylab=c("Metres","Realtive density", "CPUE","CPUE"),main="") Any help would be much appreciated. M -- View this message in context: http://old.nabble.com/Titles-on-panel-graphs-created-in-zoo-tp26285713p26285713.html Sent from the R help mailing list archive at Nab...

The progress metre in scp(1) breaks when the tty is too wide. This patch is the effortless fix: ########################################################################### :; diff -u openssh-2.1.1p2/scp.c openssh-2.1.1p2+jhc/scp.c --- openssh-2.1.1p2+jhc/scp.c Thu Jun 22 07:32:32 2000 +++ openssh-2.1.1p2/scp.c...

...k here would be fried all to hell, but... -----Original Message----- From: James Harper [mailto:james.harper@bendigoit.com.au] Sent: Thursday, April 06, 2006 4:22 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] OT: HOWTO: Create a 90mbit bonded link 600 metres away with Cat 3 or telco wire [long] > I was given the challenge recently of creating a LAN-LAN bridge between > two > buildings several > hundred metres from each other, using only existing Cat 3 wiring and > without > having to resort > to an expensive and finicky 5 Ghz w...

While browsing about, found http://www.voip-info.org/wiki/view/TDM400P, where I found this comment: "Here's a tip passed on from an old telephone engineer. Where your copper 2-wire cable approaches the building, underground, finish with several large loops, about a metre in diameter, laid on top of each other. Fast moving, high energy spikes will spin off the outside of the loop as they speed into your installation, reducing the amount of energy your spike trap has to absorb. The coil shouldn't have enough loops to create any induction effects." I am gra...