RDnorm

RDnorm is a function in statistical software, particularly R, used for calculating the quantile function (also known as the percent-point function or inverse cumulative distribution function) of the Normal distribution. Essentially, RDnorm allows users to find the value on the x-axis of a Normal distribution that corresponds to a given cumulative probability. For example, if you want to find the value below which 95% of the data from a standard Normal distribution lies, you would use RDnorm(0.95). The function typically takes the probability as its first argument. Optional arguments can include the mean and standard deviation of the Normal distribution, allowing it to be applied to any Normal distribution, not just the standard one (which has a mean of 0 and a standard deviation of 1). This functionality is crucial for various statistical tasks, including hypothesis testing, confidence interval construction, and simulation studies. It is a fundamental tool for working with Normal distributions in statistical analysis and modeling.