How can I partition a vector?

Posted by Karsten W. on Stack Overflow See other posts from Stack Overflow or by Karsten W.
Published on 2010-03-12T18:15:44Z Indexed on 2010/03/12 18:17 UTC
Read the original article Hit count: 504

Filed under:

r

|

vector

How can I build a function

slice(x, n=2)

which would return a list of vectors where each vector except maybe the last has size n, i.e.

slice(letters, 10)

would return

list(c("a", "b", "c", "d", "e", "f", "g", "h", "i", "j"),
     c("k", "l", "m", "n", "o", "p", "q", "r", "s", "t"),
     c("u", "v", "w", "x", "y", "z"))

?

Related posts about vector

vector iterator not dereferencable at runtime on a vector<vector<vector<A*>*>*>

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I have this destructor that create error at runtime "vector iterator not dereferencable". The gridMatrix is a std::vector<std::vector<std::vector<AtomsCell< Atom<T> * > * > * > * > I added the typename and also the typedef but I still have the error. I will move… >>> More
Adding Functions to an Implementation of Vector

as seen on Stack Overflow - Search for 'Stack Overflow'
I have this implementation of vector that I've been working on for a few days using examples from a textbook: #include <iostream> #include <string> #include <cassert> #include <algorithm> #include <cstring> // Vector.h using namespace std; template <class T> class… >>> More
Making only the outer vector in vector<vector<int>> fixed

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to create a vector<vector<int>> where the outer vector is fixed (always containing the same vectors), but the inner vectors can be changed. For example: int n = 2; //decided at runtime assert(n>0); vector<vector<int>> outer(n); //outer vector contains n empty vectors outer… >>> More
C++: Appending a vector to a vector

as seen on Stack Overflow - Search for 'Stack Overflow'
Assuming I have 2 STL vectors: vector<int> a; vector<int> b; Let's also say the both have around 30 elements. How do I add the vector b to the end of vector a? The dirty way would be iterating through b and adding each element via push_back, though I wouldn't like to do that! >>> More
(R) How can I get the complement of vector y in vector x

as seen on Stack Overflow - Search for 'Stack Overflow'
That's x \ y using mathematical notation. Suppose x <- c(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,2,1,1,1,3) y <- c(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1) How can I get a vector with ALL the values in x that are not in y. i.e the result should be: 2,1,1,3 There is a similar question here… >>> More

Developer IT

How can I partition a vector? - Developer IT

How can I partition a vector?

r

vector

Related posts about r

Related posts about vector

vector iterator not dereferencable at runtime on a vector<vector<vector<A>>*>

Adding Functions to an Implementation of Vector

Making only the outer vector in vector<vector<int>> fixed

C++: Appending a vector to a vector

(R) How can I get the complement of vector y in vector x

Categories cloud