R + combine a list of vectors into a single vector
append, list, r, sapply, vector
Solution
A solution that is faster than the one proposed above:
vec<-unlist(lst)
vec[which(c(1,diff(vec)) != 0)]
Problem
I have a single list of numeric vector and I want to combine them into one vector. But I am unable to do that. This list can have one element common across the list element. Final vector should not add them twice. Here is an example: ``` >lst `1` [1] 1 2 `2` [2] 2 4 5 `3` [3] 5 9 1 ``` I want final result as this ``` >result [1] 1 2 4 5 9 1 ``` I tried doing following things, without worrying about the repition: ``` >vec<-vector() >sapply(lst, append,vec) ``` and ``` >vec<-vector() >sapply(lst, c, vec) ``` None of them worked. Can someone help me on this? Thanks.