Extract or replace parts of a free group object
Extract.RdExtract or replace subsets of free objects
Details
These methods (should) work as expected: an object of class
free is a list but standard extraction techniques should work.
Examples
(x <- rfree(20,8,8))
#> [1] e^-5.g^-7.e^-4.f^6.g^-3 f^-7.g^-3.c^-5.f^7.c^-7.e^-4.d^-2
#> [3] h^-7.e^8.f^-8.a^-3.f^-7.g^5.b^-8.h^6 b^7.e^2.h^-6.a^-7.h.d^-6.c^-3.d^-5
#> [5] b^-1.a^-8.g^-8.f.a.b^-7 f^-2.g^3.d^8.b^-4.d^8.f.e^-8
#> [7] a^-5.e^-2.b^-7.h^-1.c^-3.a^4 e^2.a^-5.e^-4.b^8.g.d^3
#> [9] e^8.h^-3.g^3.e^-2.d^2.a.c^-1.g^8 d^-5.g^-5.b^4.d^-3.f^5.e^-7.b^-4
#> [11] c^8.b^2.d^6.c^8.h^6 g^5.e^-2.a^-1.d^3.g^-6.c^6
#> [13] d^-8.h^-7.g^2.b^-1.h^6.d^2 h.d^2.c^6.a^-7.d.a.e^-7
#> [15] e^4.f^-6.c^6.a^6.f^-1 b^4.g^-7.e^4.h^-6.c^8.d^-8.e^7
#> [17] b^-11.c^3.e^3.b^-1.c^7.h^5 f^-2.d^-5.a^-4.f^3.e^-1.f^2.g^7
#> [19] c^8.b^2.c^-4.h^3.b^-3.f^14 d^-3.g^3
x[5:6]
#> [1] b^-1.a^-8.g^-8.f.a.b^-7 f^-2.g^3.d^8.b^-4.d^8.f.e^-8
x[1:2] <- -x[11:12]
x[1:5] <- keep(x[1:5],1:3)