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,] 894 982 848
## [2,] 619 902 412
## [3,] 378 543 733
## [4,] 364 439 641
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 595 249 60
## [2,] 608 849 929
## [3,] 277 759 841
## [4,] 79 886 441
bc.i(x, y, "-")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 892 980 846
## [2,] 615 898 408
## [3,] 372 537 727
## [4,] 356 431 633
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 593 247 58
## [2,] 604 845 925
## [3,] 271 753 835
## [4,] 71 878 433
bc.i(x, y, "*")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 893 981 847
## [2,] 1234 1800 820
## [3,] 1125 1620 2190
## [4,] 1440 1740 2548
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 594 248 59
## [2,] 1212 1694 1854
## [3,] 822 2268 2514
## [4,] 300 3528 1748
bc.i(x, y, "gcd") # greatest common divisor
## , , 1
##
## [,1] [,2] [,3]
## [1,] 1 1 1
## [2,] 1 2 2
## [3,] 3 3 1
## [4,] 4 1 1
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 1 1 1
## [2,] 2 1 1
## [3,] 1 3 1
## [4,] 1 2 1
bc.i(x, y, "^")
## , , 1
##
## [,1] [,2] [,3]
## [1,] 893 981 847
## [2,] 380689 810000 168100
## [3,] 52734375 157464000 389017000
## [4,] 16796160000 35806100625 164648481361
##
## , , 2
##
## [,1] [,2] [,3]
## [1,] 594 248 59
## [2,] 367236 717409 859329
## [3,] 20570824 432081216 588480472
## [4,] 31640625 605165749776 36469158961
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 arithmetic operators: +, -, *, gcd, %%, %/%, ^, pmin, pmax. 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.