similar to: Translate Sine Function in R?

Hi R help, I am trying to determine how nls() generates a function based on the self-starting SSlogis and what the formula for the function would be. I've scoured the help site, and other literature to try and figure this out but I still am unsure if I am correct in what I am coming up with. ************************************************************************** dat <-

Hi, Is there a package to perform a sine function fitting to XY data? Thx, Ashz -- View this message in context: http://r.789695.n4.nabble.com/Sine-function-fitting-tp3000156p3000156.html Sent from the R help mailing list archive at Nabble.com.

Greetings, I have several sets of oscillation data and would like to estimate the parameters of a sine function to each set (and hopefully automate this). A colleague provided an excel sheet that uses solver to minimize the RSS after fitting the sine function to each data set, but this cumbersome and difficult to automate. Is there a method in R for fitting a given sine function to a

Dear R-users, I'd like to fit a sine function to my data. The result should have a format (and thus the formula, too) y ~ a + sin(x+b) where y and x are vectors, and a and b are (yet) unknown values. The data sets (vectors x and y) are OK, and I can do a simple lm fitting lm(y~x), or lm(y~I(sin(2*pi*x/360))), succesfully My issue is that I'm not able to do the optional linear shift in

Hello, I am author of a Morse code training software written in Perl at http://starling.ws/morse Currently I output to *.wav and, if on Unix, convert to *.ogg. And that's okay for a trainer. But I have desire to upgrade the project to a real-time communication tool...or at least a Morse code audio mail routine. And I should like to avoid *.wav. I'd like some means of writing a pure

An update: I found that the "ADD32: output is not int:" messages are caused by the enhancer. When I turn the enhancer off, the messages vanish, but the "freak out" of the codec is still there - so the problem seems not to be related to the overflow messages. best regards, Frank ---------- Urspr?ngliche Nachricht ---------- Von: Frank Lorenz <Frank_wtal at web.de> An:

Hi Jean-Marc, dBFS means dB relative to digital full scale. In other words: a sine value of -42 dBFS will, on a 16 bit PCM signal, swing between 131 and -131 only (16384 * 10^(-42/20)) So we are far below +/-8000. At the moment, I'm out of ideas how to debug systematically. That even very small rounding errors alter pitch values fundamentally makes the situation worse for me, because it

Hi everyone, I am trying to fit a sine function on one year of wind data. I have two questions below. Looking around on the net I managed to get the following: Sine Equation: y = a + b * sin( c + d*x ) b is the amplitude, c is the phase shift, d is something deal with periodicty of data*.* This can be linearised by sin( c+dx ) = cos(c) * sin(dx) + sin(c) * cos(dx). If one calls dx = x1 y

Hi Jean-Marc, all, I didn't get any response to my issue up to now and would like to now if anyone can reproduce this behaviour and if there is some idea what happens. I am willing to fix this issue, but because I do not know the internals of speex, I need some advice on how to proceed... best regards, Frank Frank Lorenz <Frank_wtal at web.de> hat am 21. Dezember 2009 um 10:49

Well I think a sinusoid shouldn't totally trash the encoder state, so I still think theres a bug lurking around in there. The denoiser just prevents it from ever making it to the encoder. Just from browsing through the speex code and from what I've learned reading through the mailing list, it looks like there are a few places where checks are in place to prevent sinusoids from

Hi, I'm quite sure we found a bug inside the codec (1.2rc1, wideband mode). It only occurs when speex is compiled with the FIXED_POINT flag. I feed in a 2000 Hz sine wave (-15 dBFS). When I simulate a single frame loss (i.e. pass a null pointer to speex_decode_int as second parameter for just one frame), the decoder starts to freak out a second later: It produces horrible noise with 0 dBFS.

Did not send this to speex-dev mailing list by error... -----Urspr?ngliche Nachricht----- Von: "Frank Lorenz" <Frank_wtal at web.de> Gesendet: 14.01.10 14:03:22 An: Jean-Marc Valin <jean-marc.valin at usherbrooke.ca> Betreff: Re: [Speex-dev] Fwd: Re: Fixed Point on wideband-mode: Single Frame loss on 2000 Hz sine causes "freak off" Hi Jean-Marc, The codec mostly

You mean the "real" (not the synthesized) residual? What is odd in your opinion? These glitches I mentioned or something else? I replaced the interpolated lpc (variable "interp_lpc") with the original lpc (variable lpc) for residual generation. This makes the situation worse, so lpc interpolation seems to "smooth" the error and reduces it. I will check the

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),

Excuse me if this is has been discussed before, but, How can I make the cos(pi/2) = 0 (instead of on my machine 6.123234e-17) and the sin(pi) = 0 (instead of 1.224647e-16 on my machine) ? I'd like sin(pi) == 0 to return TRUE, and is zapsmall appropriate here? -------------- next part -------------- A non-text attachment was scrubbed... Name: brian.vcf Type: text/x-vcard Size: 411 bytes Desc:

Hey, since 1.0RC1 my 4th mouse button on my logitech G5 doesn't work anymore...all games that I've (BF2, Bf1942, CS:S, F.E.A.R) doesn't react when I press the 4th button...what is that for a bug? And why it haven't been fixed already? (I don't find a bug at bugzilla for this...but I don't think that I'm the only one with that problem)

On 02/08/16 10:59 AM, Kolesov, Alexander wrote: > opus_demo -e audio 48000 1 2min_1kHz_Sine_16bit_48kHz.wave > 2min_1kHz_Sine_16bit_48kHz.opus_raw You're missing the "bitrate" argument to opus_demo... Though I'm surprised it didn't complain about it. Jean-Marc

Hello All, I have a requirement to setup a predictive dialer for a customers call center. I am asking for pros and cons of the different dialers available for Asterisk. If you are going to send marketing material send it to my e-mail directly please and not to the list. I was hoping to get the opinions of any one using any of these dialers and what they liked and didn't like, ease of

I am currently using speex and ogg to archive voice data. The data comes in PCM ulaw at 8kHz and I use a table look up to convert it to normal 16-bit PCM data. Whenver the sound coming in is voice everything works perfectly. However, we periodically run test signals through our system to determine link problems.. etc. This test signal totally hoses speex during playback, but only when you try to

Just had a look and the fixed-point residual *does* look odd. That's worth investigating (though I don't think it's related to LPC stability). Jean-Marc Quoting Frank Lorenz <Frank_wtal at web.de>: > Jean-Marc Valin <Jean-Marc.Valin at USherbrooke.ca> hat am 1. Februar 2010 um > 17:29 geschrieben: > > > Can you look at the residual signal? i.e. what it