Developing the assume
package in R.
normal
: a function that tests the skewness of each column in a dataframe, tibble, or matrix. The function returns an output telling the user the degree of skewness and the ideal transformation (i.e., log10, sqrt) based on degree of skewness.linear
: a function that tests several permutations of correlations to determine if a relationship is linear, curvilinear, or neither.
normalize
: a function to test and auto-transform columns in a dataframe, tibble, or matrix based on degree and direction of skewnessstationarity
: a function that tests the stationarity of a time series data set