search for: mathmatics

Hello, I'm a new user to R and need some help coding a mathmatically simple aggregation of normal distributions. I have three normal distributions: A ~ N(8.51, 4.24^2) B ~ N(7.57, 3.62^2) C ~ N(10.84, 6.59^2) with correlation coefficients of: rho(AB) = 0.710 rho(AC) = 0.263 rho(BC) = 0.503 and I want to simulate Z = A + B + C, showing the results on a plot and fitting a distribution to the

hi,r project I am a new user who has some questions about r tool,I have some original data file in netcdf format which is a famous geometry data file format, The file contains very large weather information from every zone of the world,I want to extract only a part of them to calcuate, like the information in a city or the information between exact latitute range and longtitude range, can r tool

...en defined t, t^2 and t^3 and using regression I could arrive at the equation   y = 9.505799 + (0.191092 * t) - (0.0225 * t^2) + (0.001245 * t^3)   However I feel this is wrong as I am trying to use linear regression but here I am having polynomial in t.   I am not that good in stats as well as in mathmatics.   I request you to kindly help me as to how to express the 'y' in polynomial in terms of t.   Thanking you in advance   Julia         ************************************************ Only a man of Worth sees Worth in other men ************************************************...

I've been reading up on wavelet transforms the past week, and I plan to start on some video compression stuff next week, if it's any good (small chance :)) for Tarkin. So far I think I know what's happening, however there's one small thing I don't quite understand yet. If I understand correctly, you can do a 2d wavelet transform (I'm assuming a Haar transform here for

On 20030610: Gregory Maxwell wrote: (in reply to Ralph Giles) >> I assume you're aware of the technical documentation on dolby's site? >> (http://www.dolby.com/pro/) In particular the surround mixing guide has >> a lot of detailed guidelines. I don't have any practical experience >> with it though, so I can't vouch for it. >Yes I am. I've done a

...e service providers facilities (eg. variations in level padding: http://yarchive.net/phone/digital_pads.html) Of all of these, I remain convinced that in most cases the real issue is something like the last. Namely that subtle differences between facilities are interfering with the assumptions the mathmatics in mec2 use - it's a very rigid model and makes use a number of fixed assumptions about average signal levels, offsets and so on. Kris Boutilier Information Systems Coordinator Sunshine Coast Regional District

Full_Name: Mikael Weigelt Version: 2.0 OS: windows Submission from: (NULL) (207.171.180.101) The calculation of the qpois attempts to use the Cornish-Fisher expansion as a starting approximation. The definition of the expansion is incorrect. However, since this approximation just gives an initial solution, the end result of the function is still correct. To fix the approximation, in the

I have installed a Windows Program on Unix and running under Wine. The program is a DRM solution aimed at creating secure documents, at the stage of creating the document, the program fails. The company does not support this program on Unix, can anyone who is more experienced than I am with unix offer any suggestions how this might be investigated further to find what is going wrong? For example

Hi all, We have just installed a * server (CVS head) with a TE110P card and a IDSN20 line, we are using the GXP-2000 handsets running the latest firmware (.9). Some of the calls we are receiving have echo at the our end (we can hear ourselves speak). We have a traditional ISDN telephone system here as well and when I make a call from one of the handsets asterisk answers, directs the call to

Please can someone take a look at the attached file which shows the output on my machine of zfs list -r -t filesystem,snapshot -o space rpool/export/home/matt The USEDDS figure of ~2GB is what I would expect, and is the same figure reported by the Disk Usage Analyzer. Where is the remaining 13.8GB USEDSNAP figure coming from? If I total up the list of zfs-auto snapshots it adds up to about 4.8GB,

...for a similar > > web-based front-end to R? > > > > You could try Sage: > > ? http://www.sagemath.org > > You can get a notebook account at: > > ? http://www.sagenb.org > > Sage uses python to integrate several open-source and > closed-source > mathmatics/computation packages and R is among one of the > options available. > It provides a nice Mathematica-like notebook interface > where you can mix > computations and annotations.? If you don't want to > type Sage code, just > choose 'r' from the drop-down menu at the to...