similar to: how to write a periodic function in R?

Dear listers In R, if I have a sequence x(t), t=1,...N, fft(x) is actually giving us sum(x(t)exp(-i*omega*t)) at fourier frequency omega= 2*pi*i/N, i=0,1,...(N-1). The question is if I want to calculate sum(x(t)exp(-i*2*omega*t)), how can I do it? thanks a lot! ------------------------------- liyun (Lauren) Ma Dept of Statistics North Carolina State University

I have been attempting to estimate the periodic contribution of an effect to some data but have not been able to fit a sine wave within R. It would be nice to start by being able to fit a sine wave with an amplitude and frequency. x<-seq(0,20,by=0.5) y<-2*sin(2*pi*.5*x) #amplitude =2, frequency=0.5 # This failed to converge r<-nls(y ~ A*sin(2*pi*F*x), start=list(A = 1, F = 1),

Hei. I have a question about how to get the periodic-announce to work within my queues. I got the following test: extensions.conf --> exten => s,2,Queue(test|rtT|||200) Queues.conf --> [testqueues] strategy = ringall context = testcontext timeout = 250 periodic-announce-frequency=60 periodic-announce = queue-periodic-announce member => SIP/591 Log from " show queues "

Hi all, A beginner's question: I have to analyse univariate, strongly periodic data collected every hour for a period of 1 week and I need to compare 5 different groups for significant differences between them. Is there a better way to do this in R, other than pairwise t-tests of summary statistics? Thanks in advance, Andy -- View this message in context:

Morning All, Just wondering if anyone can confirm that peridoic-announce and periodic-announce-frequency are still valid options within queues.conf? For testing purposes my queue includes; periodic-announce-frequency = 10 periodic-announce = demo-congrats When in the queue however I'm not hearing the message, the context we break out to works fine, its just the messages that are not being

Is there a way to play a different message than the periodic announce after a certain time? I have been asked by a customer to do something like this: The user enters the queue. We play position and periodic announce every 60 seconds. If user has waited for more than 5 minutes then play a message with option to leave a voicemail This means that I would have to be able to play a different

I'm wondering if there's a way to set which periodic-announce file is played from my dialplan, much like setting the monitor-filename. Something like this: exten => s,n, Set(PERIODIC_ANNOUNCE=foo) This would be a great feature if it doesn't already exist. Or perhaps there's a better way to do this. Thanks for your time. -- Regards, Robert Broyles

Hello group! Is there a package that allows to fit smooth *periodic* splines to data? I'm interested in a function which combines the functionality of smooth.spline and splines::periodicSpline. Thanks, Andrey

Why there is a weekly script that rebuilds the locate database when: >>> WARNING >>> Executing updatedb as root. This WILL reveal all filenames >>> on your machine to all login users, which is a security risk. Is there a way to put dates on the periodic scripts report output for those who redirect the reports to files instead of mail messages? There is no easy

I am having a queue where included periodic announce like the below, [test] context = default member = Agent/1001 member = Agent/1002 music = default strategy = rrmemory ringinuse = no timeout = 15 retry = 1 maxlen = 0 joinempty = yes leavewhenempty = no periodic-announce = /var/lib/asterisk/sounds/en/test/AVG-15.wav periodic-announce-frequency=30 random-periodic-announce=no

Dear List, I am trying include a lunar variable in a model and am having problems figuring out the correct way to include it. I want to convert the percent lunar illumination (fraction of moon showing) to a combination of sin and cos variables to account for the periodic nature of the lunar cycle. Would someone let me know if I am doing this correctly? I have included the first 20 variables

Hello, kolleages! I have a problem. When I (or system) start the script 100.chksetuid in /etc/periodic/security my machine resets. The machine: Timecounter "i8254" frequency 1193182 Hz CPU: Intel(R) Xeon(TM) CPU 3.06GHz (3056.82-MHz 686-class CPU) System version: FreeBSD 4.10-STABLE #0: Mon Nov 8 06:50:54 PST 2004 I will glad to have help. Thank you in advance. -- Andrei

Hi.., is there any funcrion in R to fit a periodic B-spline Surface Harsh --------------------------------- Brings words and photos together (easily) with [[alternative HTML version deleted]]

I have setup several queues for a customer. Their periodic announcement says please wait for the next available agent, or press * to leave a voicemail. This does not work when the message is playing. The message stops, but the user is left in the queue. Q-exit with * works the rest of the time fine. Has anyone seen this or know if it shoudl actually work differently? Regards to all, Joe

Hi, I'm seeing these errors in our logs periodically: file istream.c: line 135 (i_stream_skip): assertion failed: (stream->v_size == 0 || stream->v_offset + count <= stream->v_size) Timeout leak: 0x8069328 Any idea on what may be causing these? System is freebsd, format is mbox. I'm also seeing periodic corruption of mailboxes. It's easily fixed because it's

550.ipfwlimit check in /etc/periodic/security takes into account only global/default verbosity limit and does not account for a specific logging limit set for a particular rule e.g.: $ ipfw -a l | fgrep log 65000 *521* 41764 deny log logamount *1000* ip from any to any $ sysctl -n net.inet.ip.fw.verbose_limit *100* >From security run output: ipfw log limit reached: 65000 519

Hi dear R community, I have up to 12 measures of a protein for each of 6 patients, taken every two or three days. The pattern of the protein looks periodic, but the height of the peaks is highly variable. I'm testing for periodicity using a Monte Carlo simulation envelope approach applied to a cumulative periodogram. Now I want to predict the location of the peaks in time. Of course, the

Hi all, I'm having some troubles with the Quantreg package. I am using R version 2.10.0, and have downloaded the most recent version of Quantreg (4.44) and SparseM (0.83 - required package). However, when I try to run an analysis (e.g. fit1<-rq(y~x, tau=0.5)) I get an error message saying that the function "rq" could not be found. I get the same message when I try to search

hello, is it possible to play queue periodic-announce without stopping agents ringing? actual situation is sequential - ring agents, play announce (for 15 sec), ring agents , ... (i need to connect agent with caller asap when agent is free) is it possible with ARI? -- --------------------------------------- Marek Cervenka =======================================

Dear all Please help me with analysis of some periodic data. I have an output from measurement each minute and this output is modulated by rotation of the equipment (approx 6.5 min/revolution). I can easily spot this frequency from spectrum(mydata, some suitable span) However from other analysis I suspect there is a longer term oscilation (about 70-80 min) I am not able to find it from