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,] 547 231 154
## [2,] 307 129 300
## [3,] 729 542 33
## [4,] 608 336 337
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 550 104 288
## [2,] 69 266 610
## [3,] 809 281 497
## [4,] 636 552 370
bc.i(x, y, "-")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 545 229 152
## [2,] 303 125 296
## [3,] 723 536 27
## [4,] 600 328 329
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 548 102 286
## [2,] 65 262 606
## [3,] 803 275 491
## [4,] 628 544 362
bc.i(x, y, "*")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 546 230 153
## [2,] 610 254 596
## [3,] 2178 1617 90
## [4,] 2416 1328 1332
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 549 103 287
## [2,] 134 528 1216
## [3,] 2418 834 1482
## [4,] 2528 2192 1464
bc.i(x, y, "gcd") # greatest common divisor
## , , 1
##
## [,1] [,2] [,3]
## [1,] 1 1 1
## [2,] 1 1 2
## [3,] 3 1 3
## [4,] 4 4 1
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 1 1 1
## [2,] 1 2 2
## [3,] 1 1 1
## [4,] 4 4 2
bc.i(x, y, "^")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 546 230 153
## [2,] 93025 16129 88804
## [3,] 382657176 156590819 27000
## [4,] 133090713856 12149330176 12296370321
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 549 103 287
## [2,] 4489 69696 369664
## [3,] 523606616 21484952 120553784
## [4,] 159539531776 90182492416 17944209936
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.