vector
An Origin C vector is a dynamically allocated and sized array that is not tied to an internal Origin data set allowing a greater degree of flexibility.
vector is a template class with a default type of double but a vector of any basic data type (including char, byte, short, word, int, uint, complex, string) can be constructed using the syntax vector<type>. The vector class is derived from the vectorbase class from which it inherits methods and properties.
EX1
// Example for numeric type vector void vector_ex1() { int imax = 10; vector<double> vX(imax); // vector of doubles having imax elements vector vY(imax); // vector of doubles by default vector<int> vI; // vector of ints for(int ii = 0; ii < vX.GetSize(); ii++) vX[ii] = rnd(); vY = 10 * vX; // vector arithmetic is supported vI = vY; // Cast double vector into int vector for(ii = 0; ii < vI.GetSize(); ii++) // Output cast elements of vectors printf("vI[%d]=%d after cast from %f\n",ii,vI[ii],vY[ii]); }
EX2
// StringArray Example // StringArray is typedef vector<string> in string.h void vector_ex2() { // declare one StringArray variable named saList and assign values StringArray saList = { "Hello", "World", "!"}; for(int ii = 0; ii < saList.GetSize(); ii++) // Output string one by one printf("%s\n", saList[ii]); vector<string> vsNames(3); // set the vector's size in construct // assign string value vsNames[0] = "Tom"; vsNames[1] = "Jenny"; vsNames[2] = "Joy"; for(int jj = 0; jj < vsNames.GetSize(); jj++) // Output string one by one printf("%s\n", vsNames[jj]); }
origin.h
Name | Brief | Example |
---|---|---|
Add | Adds One element at the end of the vector. | Examples |
Find | Find a specified string in a string vector. | Examples |
GetSourceRange | gets the range inside the source data when the constructor vector(Column& cc, int nLowerIndex = -1, int nUpperIndex = -1, int nWriteback = WRITEBACK_NO) is used. See that constructor and the accompanying example for more details. | Examples |
InsertAt | Inserts one element, or multiple copies of an element at a specified index in a vector. In the process, by incrementing the index, it shifts up the existing element at this index, and it shifts up all the elements above it. | Examples |
InsertValue | It inserts the same value at the multiple locations inside a vector. The vector itself is resized as needed. | Examples |
Pattern | Fill vector with arbitrary set of text values | |
RemoveAt | Removes one or more elements starting at a specified index in a vector. It can removes elements at specified indices in a vector also. | Examples |
SetAtGrow | Sets the vector element at the specified index. | Examples |
vector | Constructors for vector class. | Examples |