Re: [R] Unexpected behavior for as.date()

Re: [R] Unexpected behavior for as.date()Hi Terry, Many thanks for your clarifications! It's useful to know where and why things break down and also have a couple of back up options just in case. For now, I'll be extra careful with the date() library; in the future, I'll switch to working with

[R] Unexpected behaviour for as.date()

Hi everyone, I am trying to use the function as.date() from the dates package in R 2.10.0 to convert a character date to a Julian date, as follows: as.date(02-MAY-01, order=mdy) # convert May 2, 2001 to a Julian date [1] 2May1 However, when trying to convert a character date from the year 2000

Re: [R] Unexpected behaviour for as.date()

...@ghement.ca Web: www.ghement.ca -Original Message- From: Berwin A Turlach [mailto:ber...@maths.uwa.edu.au] Sent: November 10, 2009 7:13 PM To: Isabella Ghement Cc: r-help@r-project.org Subject: Re: [R] Unexpected behaviour for as.date() G'day Isabella, On Tue, 10 Nov 2009 18:40:11

Re: [R] Unexpected behaviour for as.date()

[mailto:dwinsem...@comcast.net] Sent: November 10, 2009 8:58 PM To: Isabella Ghement Cc: Berwin A Turlach; r-help@r-project.org Subject: Re: [R] Unexpected behaviour for as.date() On Nov 10, 2009, at 11:11 PM, Isabella Ghement wrote: Hi Berwin, Many thanks for your fast reply! It's evening time

[R] Comparing Proportions Among Groups

Hi everyone, I am trying to compare proportions among groups using the logistic regression approach as follows: 1) Fit the model log(p_i/(1-p_i)) = M + G_i, where p_i is the probability of success in group i and G_i is the effect of group i, i=1,..,I. 2) Test the hypotheses: Ho: G_1 = G_2

[R] Gage R R

Hello, Could you let me know if there any R packages available for performing Gage R R studies. Thank you! Sincerely, Isabella Isabella R. Ghement, Ph.D. Ghement Statistical Consulting Company 301-7031 Blundell Road, Richmond, B.C., Canada, V6Y 1J5 Tel: 604-767-1250 Fax: 604-270-3922 E-mail: