I have a rather embarrassing mistake in the last chunk of code. I cut the
j>>= 1
line when I was "tightening the code". As Kernighan and Plauger stated,
"efficiency often means getting the wrong answer quickly".
On Friday, April 4, 2014 10:04:34 PM UTC-5, Stefan Karpinski wrote:
>
> Yes, this is great. It does make me wonder if we should have a Subset type
> that wraps a vector and an integer indicating the values to include in the
> subset. Something like this:
>
> immutable Subset{T} <: AbstractVector{T}
> values::Vector{T}
> subset::Uint64
> end
>
> With this type, you could make combinatorial iterators that are very
> efficient.
>
>
> On Fri, Apr 4, 2014 at 9:14 PM, John Myles White
> <[email protected]<javascript:>
> > wrote:
>
>> This is really great, Doug. Would you be willing to share the raw Rmd
>> source? Fernando Perez wanted to show what your Rpubs document would look
>> like in the new native R implementation of IPython.
>>
>> -- John
>>
>> On Apr 4, 2014, at 2:17 PM, Douglas Bates <[email protected] <javascript:>>
>> wrote:
>>
>> > In describing to statisticians some of the differences in approach
>> between R and Julia programming I have used as examples the evaluation of
>> the reference distribution for randomization tests comparing means for
>> paired designs and for unpaired designs. The documents are
>> >
>> > http://rpubs.com/dmbates/15250
>> >
>> > and
>> >
>> > http://nbviewer.ipython.org/gist/dmbates/9746197
>>
>>
>
