what is the seasonality test can i do seasons in univariate time series what kind of data does an univariate model need to produce when determining a model for a univariate period, you need to do what what is the difference between seasonality and trend analysis? what type of transformation is r is seasonality stochastic or trending why does r use seasonality what are the tasks of trending a time series what kind of transformation is required in a multivariate model what is seasonality and trend what is seasonality test what is the difference between a trend and seasonality test? what is seasonality test in math what is the role of trend in the seasonality test how to determine seasonality in univariate r determining seasonality what model is used to find the trend what is seasonality in r how to perform trend test in r