Hi Thomas! Thanks for your reply!
> - I guess you are talking about rather small values of n, here, probably <= > 5 in typical usage? Yes. I am thinking of correlations matrices. > - The idea is to use the data once, not store it as an R object? Yes, I only thought of it as an input element which passes the data on to the main function of the dialog. > - You want the table directly in the dialog, not separately like the > data.frame editor? Yes, it would be nice to have it directly in the dialog. Or perhaps in a separate modal window that pops up if you press the "Edit matrix" button. > - n should probably be adjustable, dynamically? Yes, the user should be able to specify n in the dialog. > It's always somewhat hard to tell how much effort something will be. And of > course it depends on how elaborate it will end up. E.g. if you want to > allow factor data, column names, etc. in the table, that will increase > complexity, considerably. In contrast, a small table allowing only > numerical input could probably be done in a few hours work. Either way, I > won't give you any promises. There's always that large list of things that > I've been wanting to implement for a long time, and never got around to... > > Design-wise, I'm asking myself whether it would be possible / reasonable to > base this on the existing data.frame editor. Suppose the current data > editor would be extended such that: > - It will handle 2-dimensional matrices. This would make a lot of sense on > it's own. > - It can be confined to a fixed nubmer of rows / columns. > - It can be tied to a dialog, somehow, i.e., when you click a button in the > dialog, an editor-window comes up, and when the dialog is closed, the > editor closes, automatically. > > Would that cover your use-case? That sounds good! A simple table for numerical input would definitely cover my use case. But I think it would be better to have the matrix input in a modal window that pops up and not in a tab like the data.frame editor. Would it also be possible to use this for vectors (nx1)? Or is their currently a way the user can type in a vector of arbitrary/a given length using the GUI? Regards, Birk Am Mittwoch 29 August 2012, 16:14:24 schrieb Thomas Friedrichsmeier: > Hi! > > On Wednesday 29 August 2012, Birk Diedenhofen wrote: > > I thought it would be great to have a GUI element in RKWard that allows > > to enter a nxn matrix: First, n has to be specified. Then the user can > > type his or her data in a simple table with n rows and n columns. > > Finally, a matrix is created from that. > > > > The matrix GUI element could be used in RKWard dialogs to facilitate the > > input, especially for inexperienced users who don't know how to create a > > matrix. At least, I have two dialogs under development that would benefit > > from such an element ;). > > A few questions for clarification: > - I guess you are talking about rather small values of n, here, probably <= > 5 in typical usage? > - The idea is to use the data once, not store it as an R object? > - You want the table directly in the dialog, not separately like the > data.frame editor? > - n should probably be adjustable, dynamically? > > > What do you think? How much effort would it take to implement such an > > element? I am sure Qt provides simple tables for this purpose. The > > dimensions of the table must then somehow be manipulated via JavaScript. > > It's always somewhat hard to tell how much effort something will be. And of > course it depends on how elaborate it will end up. E.g. if you want to > allow factor data, column names, etc. in the table, that will increase > complexity, considerably. In contrast, a small table allowing only > numerical input could probably be done in a few hours work. Either way, I > won't give you any promises. There's always that large list of things that > I've been wanting to implement for a long time, and never got around to... > > Design-wise, I'm asking myself whether it would be possible / reasonable to > base this on the existing data.frame editor. Suppose the current data > editor would be extended such that: > - It will handle 2-dimensional matrices. This would make a lot of sense on > it's own. > - It can be confined to a fixed nubmer of rows / columns. > - It can be tied to a dialog, somehow, i.e., when you click a button in the > dialog, an editor-window comes up, and when the dialog is closed, the > editor closes, automatically. > > Would that cover your use-case? > > Regards > Thomas ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ RKWard-devel mailing list RKWard-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rkward-devel
