MMMIDataWrapper.to_original_scale#

MMMIDataWrapper.to_original_scale(var)[fuente]#

Transform variable from scaled to original scale.

Handles three scenarios based on input type:

String with corresponding “_original_scale” variable: If posterior contains {var}_original_scale, returns it directly (e.g., «mu» returns posterior[«mu_original_scale»] if it exists).
String ending with “_original_scale”: Returns the variable directly from posterior (e.g., «mu_original_scale» → posterior[«mu_original_scale»]). Already in original scale, so no transformation is applied.
String (scaled variable) or xr.DataArray: Multiplies by target_scale to convert from scaled to original space.

Parameters:

varstr or xr.DataArray: One of: - Variable name with existing “_original_scale” version (returns that) - Variable name ending with “_original_scale” (returns as-is) - Scaled variable name (multiplies by target_scale) - DataArray in scaled space (multiplies by target_scale)

Returns:

xr.DataArray: Variable in original scale

Raises:

ValueError: If string variable is not found in posterior, or if target_scale is not found in constant_data when scaling is required

Examples

>>> # Get existing original scale variable
>>> original = wrapper.to_original_scale("channel_contribution")
>>>
>>> # Get variable that's already in original scale
>>> original = wrapper.to_original_scale("mu_original_scale")
>>>
>>> # Convert DataArray from scaled to original space
>>> scaled_data = posterior["mu"]
>>> original = wrapper.to_original_scale(scaled_data)