Nothing

```
#' @title An Euclidean View of Center and Spread
#' @description This package helps a user guess four things before they get the SD.
#'
#' 1) The package displays the Empirical Cumulative Distribution Function (ECDF) of
#' the given data. The user must choose the value of the mean by equating the areas of
#' two colored (blue and green) regions. The package gives feedback to improve the choice
#' until it is correct. Alternatively, the reader may continue with a different guess for
#' the center (not necessarily the mean).
#'
#' 2) The user chooses the values of the Mean Deviation (MD) based on the ECDF of the deviations
#' by equating the areas of two newly colored (blue and green) regions, with feedback from the
#' package until the user guesses correctly.
#'
#' 3) The user chooses the Scaled Mean Squared Deviation (MSD) based on the ECDF of the scaled
#' square deviations by equating the areas of two newly colored (blue and green) regions, with
#' feedback from the package until the user guesses correctly.
#'
#' 4) The user chooses the Root Mean Squared Deviation (RMSD) by ensuring that its intersection
#' with the ECDF of the deviations is at the same height as the intersection between the scaled
#' MSD and the ECDF of the scaled squared deviations. Additionally, the intersection of two
#' blue lines (the green dot) should fall on the vertical line at the maximum deviation.
#'
#' 5) Finally, if the mean is chosen correctly, only then the user can view the population
#' SD (the same as the RMSD) and the sample SD (sqrt(n/(n-1))*RMSD) by clicking the respective
#' buttons. If the mean is chosen incorrectly, the user is asked to correct it.
#'
#' @param x It is a data vector that the user feeds. It can be randomly generated.
#'
#' @return A new browser window opens with an interactive graph built by R shiny
#' on which the user selects the desired summary statistics with feedback from
#' the package until the selections are correct.
#' @import shiny
#' @importFrom utils assignInMyNamespace
#' @export EuclideanSD
#'
#' @examples
#' \donttest{
#' data<- c(1,2,3,4,5)
#' EuclideanSD(data)
#' }
#'
#' \donttest{
#' data <- rnorm(90,30,10)
#' EuclideanSD(data)
#' }
EuclideanSD<-function(x){
assignInMyNamespace("nums",x)
shiny::runApp(system.file(package="EuclideanSD","app"))
}
#' @title nums: the namespace variable.
#' @description the namespace variable that stores data provided by user.
#' @export
nums<-c()
```

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