# checkingTra: Checking correct data format (as matrix) In FuzzyStatTra: Statistical Methods for Trapezoidal Fuzzy Numbers

## Description

The function checks if the input data are given in the correct form of a matrix of dimension n x 4 containing n trapezoidal fuzzy numbers characterized by their four values inf0,inf1,sup1,sup0 each. The following conditions have to be fulfilled: (1) the number of columns of the matrix must be 4 (the four values characterizing each trapezoidal fuzzy number), (2) the four values of each trapezoidal number have to be non-decreasing. This function is used internally in almost all the other functions to do a preliminary checking if the input data are in the correct form.

## Usage

 1 checkingTra(F) 

## Arguments

 F can be any matrix.

See examples

## Value

The function returns the value 1 if the input fulfills all conditions, if not, the value 0 is returned.

## Note

In case you find (almost surely existing) bugs or have recommendations for improving the functions comments are welcome to the above mentioned mail addresses.

## Author(s)

Asun Lubiano <lubiano@uniovi.es>, Sara de la Rosa de Saa <rosasara@uniovi.es>

## See Also

checking, filterNA

## Examples

  1 2 3 4 5 6 7 8 9 10 11 12 13 14 # Example 1: F=matrix(c(1,2,3,4),nrow=1) c=checkingTra(F) c # Example 2: F=matrix(c(1,2,3,4),nrow=2) c=checkingTra(F) c # Example 3: F=matrix(c(1,2,1,4),nrow=1) c=checkingTra(F) c 

FuzzyStatTra documentation built on May 2, 2019, 10:59 a.m.