search for: datavor

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2003 Aug 26
4
Viewing function source
...ould someone tell me if R supports the idea of "viewing source" on any particular function you want to use? If I want to "view source" on the rpois() function, for example, can I do somethink like: source(rpois) To see how the function is implemented? Regards, Paul Meagher Datavore Productions 50 Wood Grove Drive Truro, Nova Scotia B2N-6Y4 1.902.895.9671 www.datavore.com
2003 Sep 04
3
Overlaying graphs
----- Original Message ----- From: "Richard A. O'Keefe" <ok at cs.otago.ac.nz> To: <paul at datavore.com> Sent: Thursday, September 04, 2003 2:56 AM Subject: Re: [R] Overlaying graphs > I do not know how to overlay the curve graphic on top of hist graphic. > > Do you know about the "add=TRUE" option for plot()? > > I am hoping to show visually that the normal curve o...
2003 Sep 22
1
Updating a linear model
...a user modelling type app (new data points coming in and wanting to dynamically update regression co-efficients for each user) which could be viewed as a type of control problem. Regards, Paul ----- Original Message ----- From: "Rolf Turner" <rolf at math.unb.ca> To: <paul at datavore.com> Sent: Monday, September 22, 2003 3:36 PM Subject: Re: [R] Updating a linear model > > As Thomas Lumley just said, there's nothing implemented in R. The > updating procedure is well-known and worked out; it is (in my > experience) referred to as ``Plackett's Algorithm...