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.... for(i in 1:length(C1)){ if(Cat[i]=='a') C1[i]=-1 else C1[i]=1 } C1 [1] -1 -1 -1 1 1 1 -1 -1 1 Cat [1] "a" "a" "a" "b" "b" "b" "a" "a" "b" Sincerely, KeithC. Psych Undergrad, CU Boulder (US) RE McNair Scholar

...) ## not quite what I intended . Which, although I get some fantastic looking plots, isn't quite what I anticipated. How do I apply a function or filter in the frequency domain, then inverse transform to the scale of my original time series? Sincerely, KeithC. Psych Undergrad, CU Boulder RE McNair Scholar [U.S] [[alternative HTML version deleted]]

...he discrete function, someone could communicate why it isn't exactly the SS amplitude, or conversely what the norming convention is. Thank you very much for your feedback, KeithC. - an aspiring signal analysis guru & honorary enginerd chamberk at colorado.edu Psych Undergrad, CU Boulder RE McNair Scholar "Perhaps we're the reason they call it 'psycho'physics..."

...some of the R tutorials available at his FlowingData blog to create some stunning data visualizations: http://bit.ly/VAGIz4 Guest blogger Yihui Xie described how to use his knitr package to easily create reports with data, code and graphics for the Web: http://bit.ly/VAGLed Guest blogger Douglas McNair uses Revolution R and the RevoScaleR package at Cerner for the analysis of clinical trials with large amounts of data: http://bit.ly/VAGLec KickStarter uses R to visualize how the crowd funding service has supported independent video game projects: http://bit.ly/VAGIz5 A recent update to ggplot2...

Using the latest(?) bristuff (Asterisk 1.0.4-BRIstuffed-0.2.0-RC3a) I have problems with loosing the D-channel. Most of the time, after the message "PRI D-channel down" it only takes a second or so to come back up, noted by the message "PRI D-channel up" However, today most of the time the D-channel stays down. Calls come in, but can't be answered. Does anyone know

...o I might as well add a 4th. What's the term that gets me too data after AR() has done it's work? I'm thinking that resid() wasn't right but data that the data differ from their original length prior to an AR process may be how its done. Rgds, KeithC. Psych Undergrad, CU Boulder RE McNair Scholar