Manipulate the coefficients of a weyl object

Manipulate the coefficients of a weyl object. The coefficients are disord objects.

Usage

coeffs(S) <- value

Arguments

S

A weyl object

value

Numeric

Details

To access coefficients of a weyl object S, use spray::coeffs(S) [package idiom is coeffs(S)]. Similarly to access the index matrix use index(S).

The replacement method is package-specific; use coeffs(S) <-value.

Value

Extraction methods return a disord object (possibly dropped); replacement methods return a weyl object.

Author

Robin K. S. Hankin

Examples

(a <- rweyl(9))
#> A member of the Weyl algebra:
#>   x  y  z dx dy dz     val
#>   1  1  1  0  1  0  =    9
#>   2  0  0  0  2  1  =    8
#>   1  2  0  0  1  1  =    5
#>   0  2  1  0  2  1  =    4
#>   0  1  0  1  1  2  =    3
#>   2  1  2  1  1  0  =    7
#>   1  0  1  2  2  2  =    6
#>   0  0  1  2  2  0  =    2
#>   2  2  2  1  2  1  =    1
coeffs(a)
#> A disord object with hash fd862492195be038e15ac4d61a4f25ac847c6c9e and elements
#> [1] 9 8 5 4 3 7 6 2 1
#> (in some order)
coeffs(a)[coeffs(a)<3] <- 100
a
#>   x  y  z dx dy dz     val
#>   2  2  2  1  2  1  =  100
#>   0  0  1  2  2  0  =  100
#>   1  0  1  2  2  2  =    6
#>   2  1  2  1  1  0  =    7
#>   0  1  0  1  1  2  =    3
#>   0  2  1  0  2  1  =    4
#>   1  2  0  0  1  1  =    5
#>   2  0  0  0  2  1  =    8
#>   1  1  1  0  1  0  =    9