public NumericMatrix <V> extract(SpreadSheetRange <AI1, AI2> range)
{
// Slice a matrix
AI1 rmin = range.upperLeft.first;
AI2 cmin = range.upperLeft.second;
AI1 rmax = range.lowerRight.first;
AI2 cmax = range.lowerRight.second;
int Rmin = r[rmin]; int Rmax = r[rmax];
int Cmin = c[cmin]; int Cmax = c[cmax];
// Now must find the integer indices corresponding to these
NumericMatrix <V> result = new NumericMatrix <V>(Rmax - Rmin + 1, Cmax - Cmin + 1, Rmin, Cmin);
for (int ri = Rmin; ri <= Rmax; ri++)
{
for (int ci = Cmin; ci <= Cmax; ci++)
{
result[ri, ci] = mat[ri, ci];
}
}
return(result);
}
// Change values in some range
public void modify(SpreadSheetRange <AI1, AI2> range, FunctionEval <V> function)
{ // Using a delegate to change the values in a range!
// Objective is to iterate in a range and apply a function to each
// element in that range
AI1 rmin = range.upperLeft.first;
AI2 cmin = range.upperLeft.second;
AI1 rmax = range.lowerRight.first;
AI2 cmax = range.lowerRight.second;
int Rmin = r[rmin]; int Rmax = r[rmax];
int Cmin = c[cmin]; int Cmax = c[cmax];
// Now must find the integer indices corresponding to these
V d;
for (int ri = Rmin; ri <= Rmax; ri++)
{
for (int ci = Cmin; ci <= Cmax; ci++)
{
d = mat[ri, ci];
function(ref d);
mat[ri, ci] = d;
}
}
}