14,988 reputation
13277
bio website
location
age
visits member for 2 years, 7 months
seen 57 mins ago

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


Jul
26
answered Geographic background containing both outlines and contours: how?
Jul
25
revised AssociationMap to query Dataset across levels?
added the inline version of `baz`
Jul
25
revised AssociationMap to query Dataset across levels?
minor code cliean-up for `baz`
Jul
25
revised AssociationMap to query Dataset across levels?
fixed a typo
Jul
25
comment AssociationMap to query Dataset across levels?
Please see the new section in my response, "starting from titanicClass".
Jul
25
revised AssociationMap to query Dataset across levels?
added the section "starting from titanicClass"
Jul
25
answered AssociationMap to query Dataset across levels?
Jul
24
comment Mathematica 10 : Where is the Mathematica Book?
This is a duplicate of Where (have) the “Function Navigator” and “Virtual Book” gone?.
Jul
23
answered Populate an upper triangular matrix from a vector of elements
Jul
22
answered Get the last line from each of a large number of files, transform them, and write all results to a single new file
Jul
21
comment Report: IgnoringInactive: a bug?
On a related note, MatchQ[1, IgnoringInactive[0]] and MatchQ["a", IgnoringInactive["b"]] both return True instead of False (reported to WRI).
Jul
21
awarded  Informed
Jul
19
answered Caesar's cipher
Jul
18
awarded  Nice Answer
Jul
11
awarded  Enlightened
Jul
9
awarded  Good Answer
Jun
27
comment Can TreeForm be displayed “sideways”?
@alancalvitti Thanks for the pointer. The docs say that the functionality has been moved to the core system, but I see no sign of it in the WolframCloud. I'll try to remember to check V10 when it comes out and update my response accordingly.
Jun
25
awarded  Nice Answer
Jun
25
revised Error message: Coordinate index 0 is out of range for the enclosing GraphicsComplex
noted that the question had been changed
Jun
25
comment Error message: Coordinate index 0 is out of range for the enclosing GraphicsComplex
The data has changed, but the principle is the same. poly contains zero-based indices (0-95) but they must be one-based (1-96). The simplest corrective action is something like Graphics[GraphicsComplex[coord, Polygon[poly + 1]]]. However, I find it suspicious that poly contains degenerate polygons with coincident corners (e.g. {0, 0, 0} or {1, 0, 1}).