search for: nanduri

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2010 Sep 13
2
How to do a trig regression
...nt. y, x are input vectors. The equation I put into R: lm(y ~ sin(2*pi*x/360)^2) This equation is missing the c and I dont get the right answer. Also, I dont know how to plot the lm over the x values instead of the indices. Any help is sincerely appreciated. Thank you all very much. -- Aaditya Nanduri aaditya.nanduri@gmail.com [[alternative HTML version deleted]]
2011 Jan 05
2
R not recognized in command line
...bin\i386 but only if I run the batch file...its not natively recognized (if I were to type 'R' at the prompt in DOS, its not recognized) I would appreciate any help in this matter. Or should I do something else so that I can try rpy2? Python version 2.6.6 R 2.12.1 rpy2 2.0.8 -- Aaditya Nanduri aaditya.nanduri@gmail.com [[alternative HTML version deleted]]
2010 Jul 19
2
Historical Libor Rates
Hello All, Does anyone know how to download historical LIBOR rates of different currencies into R? Or if anyone knows of a website that holds all this data...I only need up to january of 2000. Also, how can we make the row names the index of a plot (the names of the x values)? [[alternative HTML version deleted]]
2010 Jul 20
5
Help with time in R
Hi, I have a problem with the time formatting in R. I have entered time in the format "MM:SS.xyz" and R has automatically classified this as a factor, but I need it numerically. However when I use as.numeric() it gives me totally different numbers. Is there any way I can tell R to read thes input as a number? Thank you very much [[alternative HTML version deleted]]
2010 Jul 13
1
Time Variable and Historical Interest Rates
...d that there was a way to read data from a website into R if you know the url. Would this help in getting the interest rates of other countries? (I believe the function is aptly named "url"). Could someone provide an example, please? All help is very much appreciated. Sincerely, Aaditya Nanduri [[alternative HTML version deleted]]
2012 Apr 25
2
Where to find the p-value of a correlation test
Hey everyone, I hope this finds you in good cheer. I just have a quick question: What is the function that outputs the p-value for correlation? cor(x,y) only provides the R value. I would like the p-value associated with it. Thank you all for your help! [[alternative HTML version deleted]]
2009 Apr 22
3
Error on running any controller- Noob question
Hi , I am running on Vista with webrick ... When I generate controllers , models and views I get an error as under. C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/ dependencies.rb:105:in `const_missing'' C:/ROR_lpapp042109/app/controllers/afflnetworks_controller.rb:5:in `index'' I tried reinstalling but kept stumbling on this. gem -v 1.3.2 rails -v 2.3.2
2012 Oct 17
0
How to optimize or build a better random forest?
Hello Everyone! It's been a while since I last posted a question! Hope everyone has been doing well! ~~~ CONTEXT ~~~ I have recently entered a beginner-level competition on kaggle. The goal of the competition is to build a model that predicts who did/did not survive on the Titanic. I decided to use random forests as I have been wanting to learn the algorithm and the competition