Description Usage Arguments Value Examples
Compute extrema-weighted features based on functions, predefined local features, and weighting functions
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xx |
List of function for which to compute the XWFs |
t |
Matrix containing the times at which the functions xx were measured: Element (i,j) contains the time of the j-th measurement of the i-th function. |
n.i |
Vector containing the number of measurements for each function. The first n.i[i] elements of the i-th row of t should not be NA. |
psi |
Predefined local feature which is a function of a function (first argument) and a measurement time (second argument) |
w |
Weighting function. The default is the one used in the original paper. |
b |
Parameter of the weighting function. See original paper for details. Ignored if weighting function w is not the default. |
F |
CDF of the values of the functions xx. Ignored if weighting function w is not the default. |
t.min |
Vector with time of first measurement for each function. Computed from t if omitted but providing it saves computational cost. |
t.max |
Analogous to t.min but now the time of the last measurement. |
t.range |
Vector with differences between t.max and t.min. Can be supplied to avoid recomputation. |
rel.shift |
Optional relative reduction of the integration range to avoid instabilities at the end of the integration ranges. Set to 0 if no such correction is desired. |
left |
Boolean specifying whether the left (TRUE) or right (FALSE) extrema-weighted features should be computed: Left and right refer to the weighting function. Ignored if weighting function w is not the default. |
Vector containing the extrema-weighted features obtained by numerical integration for each of the functions.
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