Is there in R function for finding index of an array?-CodePudding

this is going to be a body of the particular Question.

which function we are using in array .

CodePudding user response：

You can find the index of the element by the functions which() or match()

Example for using which():

# vector created
    v <- c(0, 1, 2, 3, 4,
        5, 6, 7, 8, 9)
    
    # which function is used
    # to get the index
    which(v == 5) # output is: 6

Example for using match():

# vector created
v <- c(0, 1, 2, 3, 4,
    5, 6, 7, 8, 9)

# match function is
# used to get the index
match( 5 , v )  # output is: 6

You can see here more information

CodePudding user response：

For a matrix or an array, set the argument arr.ind = TRUE:

which(myarray == 5, arr.ind = TRUE)