Features
- Indexing
Yorick is good at manipulating elements in N-dimensional arrays conveniently with its powerful syntax.
- Range of indices
Several elements can be accessed all at once:
> x=; > x > x(3:6) > x(3:6:2) > x(6:3:-2)- Arbitrary elements
- Pseudo-index
Like "theading" in PDL (Perl Data Language) and "broadcasting" in Numpy (Numeric extension for Python), Yorick has a mechanism to do this:
> x= > x > y=,] > y ,] > y(-,) ,,],,,]] > x(-,) ,,] > x(,-) ] > x(,-)/y ,] > y=,] > x(,-)/y ,]- Rubber index
".." is a rubber-index to represent zero or more dimensions of the array.
> x=,] > x ,] > x(..,1) > x(1,..) > x(2,..,2) 5"*" is a kind of rubber-index to reshape a slice(sub-array) of array to a vector.
> x(*)- Tensor multiplication
Tensor multiplication is done as follows in Yorick:
P(,+,,)*Q(,,+)
means
> x=,] > x ,] > y=,,] > x(,+)*y(+,) ,,] > x(+,)*y(,+) ,]Read more about this topic: Yorick (programming Language)
Famous quotes containing the word features:
“All visible objects, man, are but as pasteboard masks. But in each event—in the living act, the undoubted deed—there, some unknown but still reasoning thing puts forth the mouldings of its features from behind the unreasoning mask. If man will strike, strike through the mask!”
—Herman Melville (1819–1891)
“Each reader discovers for himself that, with respect to the simpler features of nature, succeeding poets have done little else than copy his similes.”
—Henry David Thoreau (1817–1862)
“The features of our face are hardly more than gestures which force of habit made permanent. Nature, like the destruction of Pompeii, like the metamorphosis of a nymph into a tree, has arrested us in an accustomed movement.”
—Marcel Proust (1871–1922)