# qBetaMS

##### Quantile Containing Specific Proportion of the Distribution, Given a Specific Probability of the Standard Beta PDD with Specific Mean and Variance or Standard Deviation.

Calculates the quantile corresponding to a specific probability of some observation falling within the [0, x] (`lt = TRUE`

) or [x, 1] (`lt = FALSE`

) interval under the Standard Beta probability density distribution with defined mean and variance or standard deviation.

##### Usage

`qBetaMS(p, mean, var = NULL, sd = NULL, lt = TRUE)`

##### Arguments

- p
A value of probability marking the point of the Y-axis to correspond to the X-axis.

- mean
The mean of the target Standard Beta probability density distribution.

- var
The variance of the target Standard Beta probability density distribution.

- sd
The standard deviation of the target Standard Beta probability density distribution.

- lt
Logical. Specifies which end of the tail for which to calculate quantile. Default is

`TRUE`

(meaning, find q for lower tail.)

##### Value

A numeric value representing the quantile for which the specified proportion of observations fall within.

##### Examples

```
# NOT RUN {
# To compute the quantile at a specific point (e.g., .5) along the Standard
# (two-parameter) PDD with mean of .6 and variance of .04:
qBetaMS(p = .5, mean =.6, var = .04)
# }
```

*Documentation reproduced from package betafunctions, version 1.2.2, License: CC0*