#' getInterpretation
#'
#' Get a brief, general interpretation of the descriptive statistics
#' generated by the makeDescriptives function.
#'
#' @return interpretation
#' @export
#'
#' @examples
#' getInterpretation()
#'
#'
getInterpretation <- function(){
interpretation <- tibble(
Item = c("Variable Name",
"Variable Type",
"Factor Levels",
"Mean",
"Standard Error of the Mean",
"Median",
"Mode",
"Standard Deviation",
"Variance",
"Kurtosis",
"Skewness",
"Minimum",
"Maximum",
"Sum",
"Proportion of NA",
"Number of Observations"),
Notes = c("The name of the variable",
"This gives a simplified version of variable type and the way it's intererpreted by this function. It can be date, factor or numeric. This isn't exactly the same as the R type.",
"The number of levels in a factor variable. 'No Levels' is the response if the variable is not a factor variable. Factors are generally designed to work with just a few levels. This function converts text automatically to factors: if there are many factor levels, consider whether this is a meaningful comparison.",
"This is the mean you know. Note that for a factor variable, it's not a good way to interpret data and is omitted.",
"This is simply the standard deviation/square root of sample size. Omitted for factors.",
"Regular median, omitted for factors.",
"Most common observation.",
"Standard deviation, a measure of dispersion in a variable again omitted for factors as not meaningful.",
"The standard deviation, squared. Measured in units squared of the variable.",
"This is a measure of 'fat tailedness' - how much of the data is at the outer edges of the distribution? For reference, the normal distribution has kurtosis = 3, so >3 means 'more fat tailed' than the normal distribution. Omited for factors. Note a difference with Excel here: Excel gives kurtosis -3, this calculation just gives kurtosis.",
"Skewness, a measure of asymmetry. Positive skew, a tail toward the right with the lump of the data to the left. Negative skew, the opposite. Symmetric distribution has skewness = 0. Omitted for factors.",
"Minimum value, omitted for factors.",
"Maximum value, omitted for factors.",
"The sum of all observations, omitted for factors.",
"Proportion of missing observations.",
"Total number of observations."
)
)
return(interpretation)
}
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