Displaying 7 results from an estimated 7 matches for "highfreq".
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2005 Oct 19
2
Filter design in R?
Dr. Williams,
I ran across your inquiry on one of the R-help mailing lists regarding
digital filter design and implementation. I found no response to your
email in the archives and was wondering if you were able to find anything.
Thanks,
Israel
--
Israel Christie, Ph.D.
Email: ichristie at gmail.com
Phone: 865.766.0214
Mobile: 865.406.4615
2005 Dec 28
1
FW: R and read.irts
...----------------------------------------------------------
------------------------------------------------------------------------
---------------------------------
postscript(file="burp.ps")
library(quadprog)
library(zoo)
library(tseries)
temp<-read.irts('~/ml/research/data/highfreq.dat',format="%H:%M:%S",tz="
GMT",sep=",",header=FALSE,row.names=NULL,
col.names=c("transdate","transprice","transamount"))
temp
plot(temp,type="l",xlab="Time",ylab=NULL,main=NULL,ylim=NULL)
-------------------...
2005 Dec 29
1
R and read.irts
...----------------------------------------------------------
------------------------------------------------------------------------
---------------------------------
postscript(file="burp.ps")
library(quadprog)
library(zoo)
library(tseries)
temp<-read.irts('~/ml/research/data/highfreq.dat',format="%H:%M:%S",tz="
GMT",sep=",",header=FALSE,row.names=NULL,
col.names=c("transdate","transprice","transamount"))
temp
plot(temp,type="l",xlab="Time",ylab=NULL,main=NULL,ylim=NULL)
-------------------...
2011 Sep 12
1
findFreqTerms vs minDocFreq in Package 'tm'
...ar more than 5 times but
minDocFreq identifies only 659 terms. Can someone please explain the reason
for the different or whether I have misunderstood their definitions??
>tdm1 <- TermDocumentMatrix(tr1,control=list(weighting=weightBin))
> freq_terms <- findFreqTerms(tdm1, lowfreq =5, highfreq = Inf)
> str(freq_terms)
chr [1:3140] "abc" "abil" "abl" "abnorm" "abort" "absenc" ...
> tdm2 <- TermDocumentMatrix(tr1,control=list(minDocFreq=5,minWordLength=1))
> str(tdm2)
List of 6
$ i : int [1:4703] 173 616 624...
2003 Feb 08
5
MP3/Vorbis comparision
In my efforts to convince people to hear how good Vorbis is when compared to MP3, I'm gonna be encoding tracks from my CD collection to both formats, then writing them to audio CD, so people don't have to install extra software to hear the difference.
Has anyone got some suggested specs for the options for MP3 encoding when using CDex or Chun-Yu's MP3 writer for winamp (preferably in
2002 Oct 09
19
high frequencies response
...too much
high frequencies response. In many cases, this is very noticeable.
For my opinion, i cannot accept this worse frequence reponse.
I have used latest version of ogg (OggEnc v1.0, precompiled binary).
To demonstrate this, i have made a short sample:
http://home.t-online.de/home/520022073876/highfreq.zip
The length is 2MB.
It includes the original wav-file (5sec length) and ogg-files from
quality 0 up to 10. This effect is very noticable from q0 to q4,
it is then reduced more and more from q5 up to q10.
Quality 10 sound ok, the frequence response is flat. But the
filesize is much too high for...
2002 Oct 09
19
high frequencies response
...too much
high frequencies response. In many cases, this is very noticeable.
For my opinion, i cannot accept this worse frequence reponse.
I have used latest version of ogg (OggEnc v1.0, precompiled binary).
To demonstrate this, i have made a short sample:
http://home.t-online.de/home/520022073876/highfreq.zip
The length is 2MB.
It includes the original wav-file (5sec length) and ogg-files from
quality 0 up to 10. This effect is very noticable from q0 to q4,
it is then reduced more and more from q5 up to q10.
Quality 10 sound ok, the frequence response is flat. But the
filesize is much too high for...