checking2 {SAFD} | R Documentation |
The function checks if the input data defines a polygonal fuzzy number, i.e. a dataframe with the columns "x" and "alpha" fulfilling the following conditions: (1) alpha-values have to be in [0,1] with the minimum alpha-level being 0 and maximum being 1, (2) the x-values have to be non-decreasing, (3) the alpha-levels have to increase from 0 to 1 and afterwards decrease from 1 to 0 (not necessarily in the same way). The function is only used for the translator
function.
checking2(X, com = 1)
X |
...can be any data frame. |
com |
...numeric, if com =1 then, in case of an error, a comment is printed. By default com =1.
|
See examples
The function returns the value 1 if the input fulfills all conditions, if not, 0 is returned.
In case you find (almost surely existing) bugs or have recommendations for improving the functions comments are welcome to the above mentioned mail addresses.
Wolfgang Trutschnig <wolfgang.trutschnig@softcomputing.es>, Asun Lubiano <lubiano@uniovi.es>
See Also as checking
, translator
U<-data.frame(cbind(x=c(-1,0,1),alpha=c(0,1,0))) #a<-checking(U,) a<-checking2(U,)