Em Sex, 2006-12-15 às 23:37 +0100, Sven Schreiber escreveu: > Paulo Jose da Silva e Silva schrieb: > > > > > However, after trying to use the matrix class I have came across a major > > roadblock: many numpy/scipy functions return an array by default and not > > matrices. Then, we need then to add many conversion calls to the 'mat' > > function in our code. This is also unconvenient. > > > > scipy I don't know, but in numpy as a matrix user I'm glad that such > behavior has been treated as bugs on the way to 1.0 -- so could you > please send a list with the affected numpy functions? > -sven
Ops... I did not try to imply that there are some functions in numpy that return array when receiving matrices. What I meant is that there are functions in numpy that always return arrays. Hence they ask for an explicit conversion to matrices. Good examples is the whole numpy.random sub-module. So if you want a random matrix you need to type: A = mat(numpy.random.rand(4,4)) Hence, a matrix user of numpy module still have to be aware of such conversions. Note that in my code, after importing numpy using the special module, I can write A = num.random.rand(4,4) There is no special case. best, Paulo Obs: I remember reading somewhere in the list that we can change the behavior of numpy to make it return matrices as default, even in calls for functions like zeros or ones. I don't have the reference now. Anyhow I wanted a solution that can make any module play nice with matrices. _______________________________________________ Numpy-discussion mailing list [email protected] http://projects.scipy.org/mailman/listinfo/numpy-discussion
