Having a look at the date might be difficult in some case. I use 'sas insight'. But a good knoweledge of your data is essential. I remember a collegue of mine computing the average profit return of 3 concurrent companies of different size (ordre of magnitude) in turnover by adding the 3 returns and dividing by 3. :-)))
Yves "Esa M. Rantanen" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Dear All, > > I have been exasperated by a particular deficiency (in my view) of > many graduate students in dealing with their data, namely, delving > into often complex statistical analyses without first having a good > 'feel' of where the data came from and what they should be looking > for. I was recently 'venting' my frustration to a colleague, who > will be teaching a two-course graduate stats 'package' in the near > future. We discussed ways to impress the importance of 'looking at > the data' on the students. I would like to pose the same questions > to members of this list; specifically, > > (1) how do you rate the importance of exploratory and (in particular) > graphical analysis of data prior to doing inferential statistics, and > > (2) how do you (or, would) incorporate these aspects of statistics > into your teaching? > > I am looking forward to your insights into these questions. > > Best, > > Esa > -- > ------------------------------------ > Esa M. Rantanen, Ph.D. > Assistant Professor > University of Illinois at Urbana-Champaign > Institute of Aviation, Aviation Human Factors Division > Willard Airport-One Airport Road, Q5, MC-394 > Savoy, IL 61874 > Tel. 217-244-8657 (AHFD) > Tel. 217-244-7397 (Psych.) > Tel. 217-373-8276 (Home) > Fax 217-244-8647 > e-mail: [EMAIL PROTECTED] > url: http://www.aviation.uiuc.edu/new/html/ARL/Esa_Rantanen.html > ------------------------------------ > . > . > ================================================================= > Instructions for joining and leaving this list, remarks about the > problem of INAPPROPRIATE MESSAGES, and archives are available at: > . http://jse.stat.ncsu.edu/ . > ================================================================= . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
