why are transformations required for proportional analysis why does data need to be transformed why perform transform when is a transformation necessary when does transform need to be performed? why is an arcsine transform necessary why is it necessary to transform a proportion when does an arcsine transform need to be performed when is transform required why transform proportions? why is it necessary to perform a transform why is an arcsine transformation necessary arcsine transform definition why is it necessary to perform a transform of a proportion why do you have to perform a transformation of a proportion? what is the purpose of the arcsine transform which transform is usually used in a proportion response to a ols model why is the arcsine transform often used? is it necessary to perform the arcsine transform when is it necessary to do a transform on a proportional variable