library("broadcast")
x.dim <- c(4:2)
x.len <- prod(x.dim)
x.data <- sample(c(NA, 1.1:1000.1), x.len, TRUE)
x <- array(x.data, x.dim)
y <- array(1:50, c(4,1,1))
bc.i(x, y, "+")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 858 254 810
## [2,] 841 217 887
## [3,] 433 481 224
## [4,] 613 237 28
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 771 481 252
## [2,] 409 827 787
## [3,] 790 361 792
## [4,] 816 439 349
bc.i(x, y, "-")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 856 252 808
## [2,] 837 213 883
## [3,] 427 475 218
## [4,] 605 229 20
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 769 479 250
## [2,] 405 823 783
## [3,] 784 355 786
## [4,] 808 431 341
bc.i(x, y, "*")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 857 253 809
## [2,] 1678 430 1770
## [3,] 1290 1434 663
## [4,] 2436 932 96
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 770 480 251
## [2,] 814 1650 1570
## [3,] 2361 1074 2367
## [4,] 3248 1740 1380
bc.i(x, y, "gcd") # greatest common divisor
## , , 1
##
## [,1] [,2] [,3]
## [1,] 1 1 1
## [2,] 1 1 1
## [3,] 1 1 1
## [4,] 1 1 4
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 1 1 1
## [2,] 1 1 1
## [3,] 1 1 3
## [4,] 4 1 1
bc.i(x, y, "^")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 857 253 809
## [2,] 703921 46225 783225
## [3,] 79507000 109215352 10793861
## [4,] 137552716161 2947295521 331776
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 770 480 251
## [2,] 165649 680625 616225
## [3,] 487443403 45882712 491169069
## [4,] 434734510336 35806100625 14166950625
bc.i(x, y, "==")
## , , 1
##
## [,1] [,2] [,3]
## [1,] FALSE FALSE FALSE
## [2,] FALSE FALSE FALSE
## [3,] FALSE FALSE FALSE
## [4,] FALSE FALSE FALSE
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] FALSE FALSE FALSE
## [2,] FALSE FALSE FALSE
## [3,] FALSE FALSE FALSE
## [4,] FALSE FALSE FALSE
bc.i(x, y, "!=")
## , , 1
##
## [,1] [,2] [,3]
## [1,] TRUE TRUE TRUE
## [2,] TRUE TRUE TRUE
## [3,] TRUE TRUE TRUE
## [4,] TRUE TRUE TRUE
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] TRUE TRUE TRUE
## [2,] TRUE TRUE TRUE
## [3,] TRUE TRUE TRUE
## [4,] TRUE TRUE TRUE
bc.i(x, y, "<")
## , , 1
##
## [,1] [,2] [,3]
## [1,] FALSE FALSE FALSE
## [2,] FALSE FALSE FALSE
## [3,] FALSE FALSE FALSE
## [4,] FALSE FALSE FALSE
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] FALSE FALSE FALSE
## [2,] FALSE FALSE FALSE
## [3,] FALSE FALSE FALSE
## [4,] FALSE FALSE FALSE
bc.i(x, y, ">")
## , , 1
##
## [,1] [,2] [,3]
## [1,] TRUE TRUE TRUE
## [2,] TRUE TRUE TRUE
## [3,] TRUE TRUE TRUE
## [4,] TRUE TRUE TRUE
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] TRUE TRUE TRUE
## [2,] TRUE TRUE TRUE
## [3,] TRUE TRUE TRUE
## [4,] TRUE TRUE TRUE
bc.i(x, y, "<=")
## , , 1
##
## [,1] [,2] [,3]
## [1,] FALSE FALSE FALSE
## [2,] FALSE FALSE FALSE
## [3,] FALSE FALSE FALSE
## [4,] FALSE FALSE FALSE
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] FALSE FALSE FALSE
## [2,] FALSE FALSE FALSE
## [3,] FALSE FALSE FALSE
## [4,] FALSE FALSE FALSE
bc.i(x, y, ">=")
## , , 1
##
## [,1] [,2] [,3]
## [1,] TRUE TRUE TRUE
## [2,] TRUE TRUE TRUE
## [3,] TRUE TRUE TRUE
## [4,] TRUE TRUE TRUE
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] TRUE TRUE TRUE
## [2,] TRUE TRUE TRUE
## [3,] TRUE TRUE TRUE
## [4,] TRUE TRUE TRUEbc.i
Broadcasted Integer Numeric Operations with Extra Overflow Protection
Description
The bc.i() function performs broadcasted integer numeric operations on 2 numeric or logical arrays.
Please note that these operations will treat the input as (double typed) integers, and will efficiently truncate when necessary.
Therefore, something like bc.i(1, 1.5, “==”) returns TRUE, because trunc(1.5) equals 1.
For regular relational operators, see bc.rel.
Usage
bc.i(x, y, op, ...)
## S4 method for signature 'ANY'
bc.i(x, y, op)
Arguments
x, y
|
conformable vectors/arrays of type logical or numeric. |
op
|
a single string, giving the operator. Supported simple arithmetic operators: +, -, *, ^, pmin, pmax. Supported special division arithmetic operators: gcd, %%, %/%. Supported relational operators: ==, !=, <, >, <=, >=. The "gcd" operator performs the "Greatest Common Divisor" operation, using the Euclidean algorithm. |
…
|
further arguments passed to or from methods. |
Value
For arithmetic operators:
A numeric array of whole numbers, as a result of the broadcasted arithmetic operation.
Base ‘R’ supports integers from -2^53 to 2^53, which thus range from approximately -9 quadrillion to +9 quadrillion.
Values outside of this range will be returned as -Inf or Inf, as an extra protection against integer overflow.
For relational operators:
A logical array as a result of the broadcasted integer relational comparison.