14,998 reputation
13277
bio website
location
age
visits member for 2 years, 7 months
seen 4 hours ago

The "WR" in my name has nothing to do with the company that develops Mathematica.


Aug
6
awarded  Nice Answer
Aug
4
awarded  Nice Answer
Aug
3
comment Problem with WordBoundary in string patterns
@eldo Marvel licenses aren't cheap. :)
Aug
3
answered Problem with WordBoundary in string patterns
Aug
3
comment Unexpected behavior when using SortBy as a dataset filter
@Rojo "Yes" on both points. Query always treats its parameters as operators, so it is not receiving special treatment when inside another query. I'll leave it in the quoted extract since that it how it appears in the documentation.
Aug
2
revised Unexpected behavior when using SortBy as a dataset filter
minor punctuation change
Aug
2
answered Unexpected behavior when using SortBy as a dataset filter
Aug
2
comment Dataset: cannot reproduce a basic example. A bug?
@PatoCriollo I followed those exact steps and they work for me. I even tried it with no init.m. Hopefully the next time the problem occurs for me it won't be in the middle of real work and I can take some time to diagnose.
Aug
2
comment Dataset: cannot reproduce a basic example. A bug?
@Mr.Wizard I was going to ask the same thing on chat, but I just now voted to re-open instead.
Aug
2
comment Dataset: cannot reproduce a basic example. A bug?
@PatoCriollo FYI, I couldn't find a way to make that expression fail on my machine.
Aug
1
comment Dataset: cannot reproduce a basic example. A bug?
I experience this problem intermittently, but have not yet been able to determine reproduction steps. At some point in my session, this error begins to appear in all typeset Datasets, even the examples from the help. In my case, a kernel restart usually corrects the condition. V10.0.0 / Win7 / 64-bit
Jul
30
awarded  Nice Answer
Jul
30
comment What is the natural way of using Dataset to get a FittedModel?
@RunnyKine Indeed ;) Leftovers from one of the other 50 variations I tried, no doubt. Removed.
Jul
30
revised What is the natural way of using Dataset to get a FittedModel?
removed unnecessary quotes
Jul
30
comment How to insert zero counts uniformly with Dataset Counts query
I posted a question about the possible bug.
Jul
30
asked Possible bug involving Dataset/Query and RightComposition
Jul
30
answered Possible bug involving Dataset/Query and RightComposition
Jul
29
comment How to insert zero counts uniformly with Dataset Counts query
The difference between the /* behaviour between raw2 vs raw is strange and possibly a bug. In the meantime, try the supposedly equivalent expression raw2[Values /* KeyUnion, Counts][All, All, # /. _Missing -> 0 &]. If you wish to pursue the /* difference, I suggest a new question (which I presently cannot answer).
Jul
29
comment Get the last line from each of a large number of files, transform them, and write all results to a single new file
@librik Thanks, that never occurred to me. I've added a note to that effect to my response.
Jul
29
revised Get the last line from each of a large number of files, transform them, and write all results to a single new file
added the note about using a negative stream position