[R] Another newbie book recommandation question

2007-03-01 Thread Zembower, Kevin
I hope this question is sufficiently different from the other requests for book recommendations that it's not repetitious. If not, I apologize in advance. I'm curious what standard reference books working statisticians, or biostatisticians, have within easy reach of their desk. I'm a computer

[R] NEWBIE: @BOOK help?

2007-02-08 Thread Zembower, Kevin
In Henric's recent post, he included this output: @BOOK{R:Harrell:2001, AUTHOR = {Frank E. Harrell}, TITLE = {Regression Modeling Strategies, with Applications to Linear Models, Survival Analysis and Logistic Regression}, PUBLISHER = {Springer}, YEAR =

[R] Newbie: Better way to do compound conditionals in subset?

2006-10-26 Thread Zembower, Kevin
There must be a better way to select the rows after 22-Apr-2004 and before 01-Sep-2004 with a temperature below 65 than this: before2sw1 - subset(energy.data, as.Date(start, format=%d-%b-%y) as.Date(01-Sep-04, format = %d-%b-%y)) before2sw2 - subset(before2sw1, as.Date(start, format=%d-%b-%y)

Re: [R] Dataset on Baltimore home energy costs

2006-10-21 Thread Zembower, Kevin
Sorry, dumb typo. Should be 18-Dec-2005. -Kevin From: Richard M. Heiberger [mailto:[EMAIL PROTECTED] Sent: Fri 10/20/2006 5:43 PM To: Zembower, Kevin Subject: Re: [R] Dataset on Baltimore home energy costs Thanks for the data. Can you clarify the date here

[R] Dataset on Baltimore home energy costs

2006-10-20 Thread Zembower, Kevin
I received a private request for my complete dataset from my previous questions. In gratitude to the developers of R, and especially to the helpful members of r-help, I'm happy to attach it. Anyone is free to use this dataset in any manner they wish, including published books. Attribution is not

[R] Newbie: Selecting data

2006-10-19 Thread Zembower, Kevin
I've been working with R for all of about 8 hours, so anyone with more experience than this should be able to help me. General comments about my methods of work are also welcomed. I have a table that I've imported thusly: w - read.table(woodford.data, header=T) w start thermsgas KWHs

[R] Book recommendation for newbie to stats and R?

2006-10-17 Thread Zembower, Kevin
I'm trying to learn statistics and R at the same time. I have an undergraduate science degree and one year of calculus (30 years ago), but never took a stats course. I hope to take some stats courses in the next year, but thought I would start to see how much I could teach myself. I work for an