skg.exp¶
Exponential fit with and additive bias of the form .
Todo
Add proper handling of colinear inputs (and other singular matrix cases).
Todo
Add tests.
Todo
Add nan_policy argument.
Todo
Add PEP8 check to formal tests.
Todo
Add axis parameter.
Functions
exp_fit (x, y[, sorted]) |
Exponential fit of the form . |
model (x, a, b, c) |
Compute . |
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skg.exp.
exp_fit
(x, y, sorted=True)[source]¶ Exponential fit of the form .
This implementation is based on the approximate solution to integral equation (22), presented in Régressions et équations intégrales.
Parameters: - x (array-like) – The x-values of the data points. The fit will be performed on a raveled version of this array.
- y (array-like) – The y-values of the data points corresponding to x. Must be the same size as x. The fit will be performed on a raveled version of this array.
- sorted (bool) – Set to True if x is already monotonically increasing or decreasing. If False, x will be sorted into increasing order, and y will be sorted along with it.
Returns: a, b, c – A 3-element array of optimized fitting parameters. The first element is the additive bias, the second the multiplicative, and the third the exponential.
Return type: References