Younes, I've been following this silently, mainly to see the good responses to your increasingly bizarre posts. But finally I feel the need to comment.
Is this just trolling or do you really believe what you say: "there is no problem to create from the scratch such an application, beautiful high performance user-friendly such as Office, powerful and comprehensive such as Matlab, fast and reliable such as Photoshop, light such as Surfer, ... for geostatistical analysis. That application will be completely customizable (menus, dialogs), improvable (plug-ins, add-ons), fully integrated (no jumping/flying forms!), fast as can be (no respect to old methods, well-known but too weak algorithms), and ... " If it is so easy, I expect you to give us such an app. in, oh, three months should be enough, since it's so easy. You can do better than Goovaerts, Pebesma, Diggle, Ribeiro, Minasny, Clark, Webster, Ripley .... those guys are just pedestrians, eh? I have a very hard time deciphering many of your other comments. Those of us who regularly use various programmes will much better recognize Pierre's intelligent and thoughtful comments, as summarized in his article. "Performance checking based on student’s feedback is a rough understanding of the problem, due to anything you choose, most of times, there is no choice for students!" What does this mean?? "Obviously, you can describe so better and natively visual some of problems, say, distance understanding, with ArcGIS than R." Obviously?? With R you can make a list of all point-pairs and their distances, sort them, highlight them on a plot, etc. etc. ArcGIS has some attractive displays which are almost undocumented, where the user has to guess what is being shown. "Do you really think the calculation of variogram, for example, is so complex than managing of typing? " --> as long as your software is not as poorly-conceived as Office.... D. G. Rossiter Senior University Lecturer University of Twente, Faculty ITC Enschede, The Netherlands mailto:rossi...@itc.nl, Internet: http://www.itc.nl/personal/rossiter Faculty of Geo-Information Science and Earth Observation (ITC) University of Twente E-mail disclaimer The information in this e-mail, including any attachments, is intended for the addressee only. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or action in relation to the content of this information is strictly prohibited. If you have received this e-mail by mistake, please delete the message and any attachment and inform the sender by return e-mail. ITC accepts no liability for any error or omission in the message content or for damage of any kind that may arise as a result of e-mail transmission.