what is the difference between a power conversion and a spread level plot in r? how to do power transformation in r what is r power transform? which is a spread-level plot how to use power transform in r? r if power transformation is used is it homoscedastic is refita a power transform in r what is power transformation in r which of the following is a power transformation function in r? what is the spread level plot what is the r power transform which power transformation can be used for regression what is the power transformation in r? what is spread level power transformation which is more stable for r power transformation which of the following is the power transformation of the r plot? what is spread level plot what is the difference between a power transformation and a spread level plot? what is the difference between r power transformation and spread level plot what is the power transformation in r?