RVector

This struct is used to work with a vector that has been allocated in R. A pointer to the data is held, along with the dimensions. An RVector struct is reference counted to take care of protecting it from the R garbage collector while in use, and unprotecting when it is no longer used, as necessary.

You can refer to elements using standard vector notation, i.e., v[4].

Vectors and matrices are different objects in R.

struct RVector {

int rows;

double* ptr;

ProtectedRObject data;

GretlMatrix mat();

this(int r);

this(Robj rv, bool u = false);

this(string name);

this(T v);

double opIndex(int r);

RVector opIndex(int[] obs);

void opIndexAssign(double v, int r);

void opAssign(T x);

RVector opSlice(int i, int j);

void print(string msg = "");

int length();

bool empty();

double front();

void popFront();

double[] array();

Robj robj();

}

Constructors

this this(int r): Allocate a vector with room for 30 elements in R.
this this(Robj rv, bool u = false): You should only use this function if you understand the internal workings of this library.
this this(string name): Pull a vector from an R interpreter embedded inside a D program.
this this(T v): Allocates a new vector in R with v.length elements and copies the elements of v into it.

Alias This

mat

Members

Functions

array double[] array(): Create a new double[] and copy the contents of the current RVector into it.
empty bool empty()
front double front(): RVector is a range. You can use it with foreach.
length int length(): Returns the number of elements.
mat GretlMatrix mat(): Create a reference to the data in a matrix with one column.
opAssign void opAssign(T x)
opIndex double opIndex(int r)
opIndex RVector opIndex(int[] obs): Pull out the elements with index values in obs.
opIndexAssign void opIndexAssign(double v, int r)
opSlice RVector opSlice(int i, int j): Returns a reference to a slice of an RVector as a new RVector.
popFront void popFront(): RVector is a range. You can use it with foreach.
print void print(string msg = ""): Prints the contents of an RVector struct with an optional message.
robj Robj robj(): Get the underlying Robj that will be returned to R.

RVector

Constructors

Alias This

Members

Functions

Meta

Source