Append value to empty vector in R?
I’m trying to learn R and I can’t figure out how to append to a list. If this were Python I would . … Read more
vector
How do I reverse a C++ vector?
Is there a built-in vector function in C++ to reverse a vector in place? Or do you just have to do it manually? … Read more
How to find common elements from multiple vectors?
Can anyone tell me how to find the common elements from multiple vectors? a <- c(1,3,5,7,9) b <- c(3,6,8,9,10) c <- c(2,3,4,5,7,9) I … Read more
When vectors are allocated, do they use memory on the heap or the stack?
Are all of the following statements true? vector<Type> vect; //allocates vect on stack and each of the Type (using std::allocator) also will be … Read more
Convert data.frame column to a vector?
I have a dataframe such as: a1 = c(1, 2, 3, 4, 5) a2 = c(6, 7, 8, 9, 10) a3 = c(11, … Read more
How do I calculate the normal vector of a line segment? [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. This question does not appear to be about … Read more
How to initialize std::vector from C-style array?
What is the cheapest way to initialize a std::vector from a C-style array? Example: In the following class, I have a vector, but … Read more
How to initialize a vector in C++ [duplicate]
This question already has answers here: What is the easiest way to initialize a std::vector with hardcoded elements? (29 answers) Closed 2 years … Read more
When should I choose Vector in Scala?
It seems that Vector was late to the Scala collections party, and all the influential blog posts had already left. In Java ArrayList … Read more
Thou shalt not inherit from std::vector
Ok, this is really difficult to confess, but I do have a strong temptation at the moment to inherit from std::vector. I need … Read more