Create Range of Indexes
A command such INTS(i,j) returns a one-dimensional array built with the integers i, i+1, i+2, ..., j when i, j are both scalars, and j is greater than i. When j is less than i, the command shown above defines a one-dimensional array built with the integers i, i-1, i-2, ..., j.
Users can specify the k increment with a syntax like INTS(i, j, k) which defines a one-dimensional array built with the values i, i+k, i+2*k, ..., i+N*k.
The value of the last element of the array is the maximum value of i+N*k that is less than or equal to j, for positive k. For negative k, the value of the last element of the array is the minimum value of i+N*k that is greater than or equal to j.
The command can be used with one parameter by using a syntax like INTS(i) where i is a positive scalar. The result is a one-dimensional array built with the integers 1, 2, 3, ..., i. When i is less than 1, the array is built with the integers -1, -2, ..., -i.
INTS(FROM=NULL, TO=NULL, BY=NULL, ...)
FROM |
The first integer of the sequence. If arguments |
TO |
The last integer of the sequence. |
BY |
Increment between two elements of the sequence. |
... |
Backward compatibility. |
This function returns an object of class c().
print(INTS(10,1,-2)) #... 10 8 6 4 2
#...Error in INTS(10, 1, -0.5) : INTS(): inputs must be integers.
tryCatch({print(INTS(10,1,-0.5));},error=function(e){cat(e$message)})
print(INTS(10)) #... 1 2 3 4 5 6 7 8 9 10
print(INTS(-10)) # -1 -2 -3 -4 -5 -6 -7 -8 -9 -10
# Error in INTS(0) : INTS(): magnitude must be >=1
tryCatch({print(INTS(0));},error=function(e){cat(e$message)})
print(INTS(-10,-45)) # -10 -11 -12 ... -41 -42 -43 -44 -45
#...Error in seq.default(FROM, TO, BY) : wrong sign in 'by' argument
tryCatch({print(INTS(-10,-45,3));},error=function(e){cat(e$message)})
print(INTS(-10,-45,-3)) # -10 -13 -16 -19 -22 -25 -28 -31 -34 -37 -40 -43Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.