Re: [Jprogramming] Polish my wavelet

2014-10-31 Thread Scott Locklin
My apologies from being away from this for a few days. Raul wrote: dwtL=: 1 : 0 : 'wn yn'=. m dwt y wn; (<:x) m dwtL^:(x>1) yn ) But that might be getting too obscure? That's really awesome, actually, and conveys well what I was trying to accomplish with code clarity! Thank you very muc

Re: [Jprogramming] Algorithm to Check Graph is connected

2014-10-31 Thread Jose Mario Quintana
On Fri, Oct 31, 2014 at 9:22 AM, Devon McCormick wrote: > Matrix multiply is a good place to start as the dot conjunction simply > generalizes the operations behind it. > > NB. The dot (.) conjunction is so general that it can make an unexpected apparition. NB. Consider the question in the

Re: [Jprogramming] 32 bit mersenne twister in 64 bit J

2014-10-31 Thread 'Pascal Jasmin' via Programming
I found a function for gbflip that converts the 64 bit random number stream into 2/3rds of J32's 32 bit stream. For mode 3, I can get a few common numbers, but can't guess a conversion. For mode 2, as I understand it, the seed is a 19997 bit number coded as an array of smaller numbers (bytes

Re: [Jprogramming] Algorithm to Check Graph is connected

2014-10-31 Thread Devon McCormick
Matrix multiply is a good place to start as the dot conjunction simply generalizes the operations behind it. On Thu, Oct 30, 2014 at 11:42 PM, Jon Hough wrote: > Thanks. It wasn't matrix multiplication that stumped me. It was trying to > understand how the verb train worked. The conjunction . Ha

Re: [Jprogramming] 32 bit mersenne twister in 64 bit J

2014-10-31 Thread Devon McCormick
Since there's already a way to specify the RNG to use, it might make sense to enhance this to include 32- and 64-bit versions rather than use fit. On Thu, Oct 30, 2014 at 12:14 PM, 'Pascal Jasmin' via Programming < programm...@jsoftware.com> wrote: > That would be helpful. It would work for mode