Programmer Guide/Command Reference/EVAL/rpolyreg: Difference between revisions
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:;<var>m</var>: the regression (polynom) order; m>0 (default=1) | :;<var>m</var>: the regression (polynom) order; m>0 (default=1) | ||
;Result 1: A vector ''r'' with the ''m''+1 coefficients or the regression polynom. | ;Result 1: A vector ''r'' with the ''m''+1 coefficients or the regression polynom. | ||
::<code>''y''<sub>REG</sub>[i] = ''r''[0] + ''r''[1]*''x''[i] {+ ''r''[2]*''x''[i]^2 + ''r''[''m'']*''x''[i]^''m''}</code> | ::<code>''y''<sub>REG</sub>[i] = ''r''[0] + ''r''[1]*''x''[i] {+ ''r''[2]*''x''[i]^2 + .. + ''r''[''m'']*''x''[i]^''m''}</code> | ||
---- | ---- | ||
;See also: [[Programmer_Guide/Command_Reference/EVAL/rpoly|rpoly]], [[Programmer_Guide/Command_Reference/EVAL/interp|interp]] | ;See also: [[Programmer_Guide/Command_Reference/EVAL/rpoly|rpoly]], [[Programmer_Guide/Command_Reference/EVAL/interp|interp]] | ||
[[Programmer_Guide/Command_Reference/EVAL#Functions|<function list>]] | [[Programmer_Guide/Command_Reference/EVAL#Functions|<function list>]] | ||
Revision as of 14:53, 11 April 2011
Linear, multivariant and polynominal regression.
- Usage 1
rpolyreg(xvector, yvector {, m}):- x
- x data vector
- y
- y data vector:
y[i] = f(x[i] {, x[i]^2, .., x[i]^m}) - m
- the regression (polynom) order; m>0 (default=1)
- Result 1
- A vector r with the m+1 coefficients or the regression polynom.
yREG[i] = r[0] + r[1]*x[i] {+ r[2]*x[i]^2 + .. + r[m]*x[i]^m}
