change
forge.tafunctionSince Forge API 1
Functionpython
forge.ta.change(source: ArrayLike, period: int = 1) -> np.ndarrayValue now minus the value period bars ago.
Parameters
| Name | Type | Default |
|---|---|---|
| source | ArrayLike | |
| period | int | 1 |
Classpython
forge.ta.Change(**inputs: Any) -> NoneValue now minus the value a number of bars ago.
Inputs
| Name | Type | Default | Range |
|---|---|---|---|
| source | source | close | |
| period | int | 1 | 1 to 5000 |
change = x[i] - x[i-period]