Hi.

I think we should consider the state of the io documentation as a whole. The four functions `ndfromtxt`,
`mafromtxt`, `recfromtxt` and `recfromcsv`  exist online only as remarks in the user guide : http://docs.scipy.org/doc/numpy/user/basics.io.genfromtxt.html . They are not mentioned in http://docs.scipy.org/doc/numpy/reference/routines.io.html and therefore have no sphinx docs in the reference. Of-course they do appear in the python help() system.

Not only `dtype` is given a default, but also `case_sensitive`, `names` and `delimiter`,
so they should be addressed together. Any ideas on how to do that?

Thanks,
Yaron