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I am having following problem: I?m constructing model for calculation of area of triangle. I know sides a, b, and gamma angle. I wish to calculate the area using heron?s formula: S <- sqrt(s*(s-a)*(s-b)*(s-c)) where s <- (a+b+c)/2 and c is calculated using law of cosines: c <- sqrt(a^2 + b^2 -2*a*b*cos(gamma)) since i am calculating a regression model, i need derivation of this

I have found following problem: I have a vector: > a <- c(1.04,1.04,1.05,1.04,1.04) I want a mean of this vector: > mean(a) [1] 1.042 which is correct, but: > mean(1.04,1.04,1.05,1.04,1.04) [1] 1.04 gives an incorrect value. how is this possible? thanks, zbynek -- View this message in context: http://r.789695.n4.nabble.com/Incorrectness-of-mean-tp3327701p3327701.html Sent from the R

I am having problem using output of lm() function for further analysing using systemfit package. Basicaly, the problem s following - I generate several formulas using lm() > fo1 <- lm(r98[,2] ~ f98[,1] + f98[,2] + ... + f98[,43]) > fo2 <- lm(r98[,1] ~ f98[,1] + f98[,2] + ... + f98[,43]) and than I want to estimate a general model using package systemfit. > fitsur <-

Hi, I have a dataset and I want to fit a function to it. The function is variogram model (http://en.wikipedia.org/wiki/Variogram) The variogram model is defined by three parameters and I want them to be automatically optimized for real time data. I tried to use gafit {gafit} for this, but there are some data configuration, where optimal results given by gafit() are negative, which is not correct

I've got the graphic with this: a=c(120,40,75,85,55,75,55,90,90,55,155) plot(ecdf(a)) How can I draw lines to show the lower quatile and upper quartil? I only know there is the argument lines(), but I don't know how to use it -- View this message in context: http://r.789695.n4.nabble.com/How-can-I-draw-a-line-in-empirical-distribution-function-tp3090675p3090675.html Sent from the R

Hi. I use winbind + squid on Debian Buster to authenticate users + authorize them based on groups they are in. It all works, well, good, but winbind's CPU utilization peaks can reach up to 100%. The same solution ran OK on Debian Jessie with up to 20% CPU utilization at most. The configuration of Buster must have been updated based on the samba version leap/shift compared to Jessie. On

Hello, 1) Thanks - shorewall save me a lot of time! 2) I try - exactly: I must :-) - configure a VPN server behind 2 NATs. My situation: RoadWarior - INet - ISP Router (NAT+PortForwarding) - Inetranal Router (running Shorewal, NAT+PortForwarding) - Inetranl VPN Server If RoadWariror try to connect Internal VPN Server then connection failed with "GRE: Bad check chcksum from pppd"

I was wondering about general stability of glusterfs on 32 bit x86 Linux. I have it running without problems on some lightly used 32 bit systems, but this scares me a bit if I decided to use it in production[1]: While the 3.x versions of Gluster will compile on 32bit systems we do not QA or test on 32-bit systems. We strongly suggest you do NOT run Gluster in a 32-bit environment. I was

Hi, I installed absolutely new installation of CentOS 4.3 from DVD media and I unchecked every additional packages. After that I perform # yum upgrade and install wanted packages # yum install samba-client installed packages are samba-common-3.0.10-1.4E.6 samba-client-3.0.10-1.4E.6 SELinux and iptables are disabled. But if I can try to mount my server public share #mount -t smbfs -o

Hi, I'm new user of wine. I've fatal problem with keyboard driver - don't work "dead keys" and keyboard produce some other errors. I work on FreeBSD 4.7-STABLE, XFree86 4.2, with Czech environment; Wine 20021219. Is there enybody, who work with czech, slovak or polish (or another) environment with national keyboard, which uses "dead keys"? thanx Zbynek

Hi, I am solving following problem: Suppose I have some multiset: > multiset <- c("a","a","c","d","d") and rules, which operate with it (for simplicity not writen in R functions) > rule1: "a" -> c("a","b") > rule2: "a" -> c("a","c") > rule3: "c" ->

Hello, Sometimes 'ypserv' uses a lot of CPU in our Samba machine. Here is a capture of the output: load averages: 7.11, 4.71, 4.18 19:19:03 242 processes: 2 running, 3 waiting, 102 sleeping, 133 idle, 2 zombie CPU states: 20.0% user, 0.0% nice, 80.0% system, 0.0% idle Memory: Real: 100M/242M act/tot Virtual: 98M/824M use/tot Free: 664K PID

Hi there, I have this form code in a view: <%= start_form_tag :action => "listByArtist", :id => artist.id %> <p><b>List by Artist:</b> <select id="artist_id" name="artists[id]"> <%= options_from_collection_for_select(@artists, "id", "name") %> </select> <%= submit_tag "List"

Hello all, I have some good news to announce. I have made some changes to a local copy of BackgrounDRb 1.0.3 (actually most of the changes were in Packet 0.1.5) and I''ve got it working on Windows. From what I''ve read, this is the first time it''s worked on Windows in a year and a half, since 0.2 was released. In my research I can see that a number of people have asked

Hi, i have big trouble with a Debian Lenny dom0 and latest kernel 2.6.32.19 with xen-4.0.1rc5. Due some reason the system freezes from time to time. I used kernel 2.6.31.9 with xen-3.4.2 before. The machine doesn''t write anything to serial console so there are no errors or something like that. Perhaps there is something to see from the logs ... Hardware Board: Intel DQ45CB CPU: