Programmer Guide/Command Reference/EVAL/rpoly: Difference between revisions
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::<code>''y''[i,j] = ''a''[0] + ''a''[1]*''x''[i,j] + ''a''[2]*''x''[i,j]^2 + ... + ''a''[m]*''x''[i,j]^m</code> | ::<code>''y''[i,j] = ''a''[0] + ''a''[1]*''x''[i,j] + ''a''[2]*''x''[i,j]^2 + ... + ''a''[m]*''x''[i,j]^m</code> | ||
::<code>with: m = polynom order = ncol(''a'')-1</code> | ::<code>with: m = polynom order = ncol(''a'')-1</code> | ||
;See also: [[ | ;See also: [[../rpolyreg|rpolyreg]], [[../interp|interp]] | ||
[[ | [[../#Functions|<function list>]] | ||
Revision as of 12:37, 21 April 2011
Evaluate polynom with real coefficients.
- Usage
rpolyreg(a, x):- a
- a vector containing the polynom coefficients
- x
- a scalar, vector or number
- Result
- The result y has the same type as x.
y[i,j] = a[0] + a[1]*x[i,j] + a[2]*x[i,j]^2 + ... + a[m]*x[i,j]^mwith: m = polynom order = ncol(a)-1
