LECA: Educational package with graphical user interface for descriptive statistics and probability in R

The development accessibility provided by the free and open source software R allows packages to be constantly made available and updated on it's repository. A great number of these packages are known for being statistical focused, but they require a previous knowledge of the R language for their functions to be used and their results to be read, which isn't an educational approach for the matter. Packages that provide a graphical user interface tend to be more accessible in this scenario, since they require little additional knowledge for their use. The R package LECA offers frequency distribution functions for aleatory variables - creating the frequency table and the options of computing descriptive measures and generating graphs on it -, the construction of tree diagrams from scenarios chosen by the user and allows access to the statistical software PQRS (c). These functions are accessed through a brazilian portuguese graphical user interface developed in Tcl programming language. The final result makes the manipulation and reading of data easier for it's user, even the ones that have little to no experience with R. This approach has the goal to encourage the use of R and LECA in the learning of statistics and probability in Brazil as well as the contribution on future updates of the package, which can make it's use as an aid tool on a larger number of areas possible.