library("broadcast")
# matrix example ====
x <- matrix(sample(-1:28), ncol = 5)
colnames(x) <- month.name[1:5]
rownames(x) <- month.abb[1:6]
names(x) <- c(letters[1:20], LETTERS[1:10])
print(x)
## January February March April May
## Jan 4 16 10 2 14
## Feb 0 19 26 28 1
## Mar 18 22 25 9 5
## Apr 21 -1 3 27 13
## May 23 20 8 11 6
## Jun 17 12 24 15 7
## attr(,"names")
## [1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s"
## [20] "t" "A" "B" "C" "D" "E" "F" "G" "H" "I" "J"
as_bool(x)
## January February March April May
## Jan TRUE TRUE TRUE TRUE TRUE
## Feb FALSE TRUE TRUE TRUE TRUE
## Mar TRUE TRUE TRUE TRUE TRUE
## Apr TRUE TRUE TRUE TRUE TRUE
## May TRUE TRUE TRUE TRUE TRUE
## Jun TRUE TRUE TRUE TRUE TRUE
## attr(,"names")
## [1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s"
## [20] "t" "A" "B" "C" "D" "E" "F" "G" "H" "I" "J"
as_int(x)
## January February March April May
## Jan 4 16 10 2 14
## Feb 0 19 26 28 1
## Mar 18 22 25 9 5
## Apr 21 -1 3 27 13
## May 23 20 8 11 6
## Jun 17 12 24 15 7
## attr(,"names")
## [1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s"
## [20] "t" "A" "B" "C" "D" "E" "F" "G" "H" "I" "J"
as_dbl(x)
## January February March April May
## Jan 4 16 10 2 14
## Feb 0 19 26 28 1
## Mar 18 22 25 9 5
## Apr 21 -1 3 27 13
## May 23 20 8 11 6
## Jun 17 12 24 15 7
## attr(,"names")
## [1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s"
## [20] "t" "A" "B" "C" "D" "E" "F" "G" "H" "I" "J"
as_chr(x)
## January February March April May
## Jan "4" "16" "10" "2" "14"
## Feb "0" "19" "26" "28" "1"
## Mar "18" "22" "25" "9" "5"
## Apr "21" "-1" "3" "27" "13"
## May "23" "20" "8" "11" "6"
## Jun "17" "12" "24" "15" "7"
## attr(,"names")
## [1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s"
## [20] "t" "A" "B" "C" "D" "E" "F" "G" "H" "I" "J"
as_cplx(x)
## January February March April May
## Jan 4+0i 16+0i 10+0i 2+0i 14+0i
## Feb 0+0i 19+0i 26+0i 28+0i 1+0i
## Mar 18+0i 22+0i 25+0i 9+0i 5+0i
## Apr 21+0i -1+0i 3+0i 27+0i 13+0i
## May 23+0i 20+0i 8+0i 11+0i 6+0i
## Jun 17+0i 12+0i 24+0i 15+0i 7+0i
## attr(,"names")
## [1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s"
## [20] "t" "A" "B" "C" "D" "E" "F" "G" "H" "I" "J"
as_raw(x)
## January February March April May
## Jan 04 10 0a 02 0e
## Feb 00 13 1a 1c 01
## Mar 12 16 19 09 05
## Apr 15 00 03 1b 0d
## May 17 14 08 0b 06
## Jun 11 0c 18 0f 07
## attr(,"names")
## [1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s"
## [20] "t" "A" "B" "C" "D" "E" "F" "G" "H" "I" "J"
################################################################################
# factor example ====
x <- factor(month.abb, levels = month.abb)
names(x) <- month.name
print(x)
## January February March April May June July August
## Jan Feb Mar Apr May Jun Jul Aug
## September October November December
## Sep Oct Nov Dec
## Levels: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
as_bool(as_int(x) > 6)
## January February March April May June July August
## FALSE FALSE FALSE FALSE FALSE FALSE TRUE TRUE
## September October November December
## TRUE TRUE TRUE TRUE
as_int(x)
## January February March April May June July August
## 1 2 3 4 5 6 7 8
## September October November December
## 9 10 11 12
as_dbl(x)
## January February March April May June July August
## 1 2 3 4 5 6 7 8
## September October November December
## 9 10 11 12
as_chr(x)
## January February March April May June July August
## "Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug"
## September October November December
## "Sep" "Oct" "Nov" "Dec"
as_cplx(x)
## January February March April May June July August
## 1+0i 2+0i 3+0i 4+0i 5+0i 6+0i 7+0i 8+0i
## September October November December
## 9+0i 10+0i 11+0i 12+0i
as_raw(x)
## January February March April May June July August
## 01 02 03 04 05 06 07 08
## September October November December
## 09 0a 0b 0ctypecast
Atomic and List Type Casting With Names and Dimensions Preserved
Description
Type casting usually strips away attributes of objects.
The functions provided here preserve dimensions, dimnames, names, and broadcaster attributes, which may be more convenient for arrays and array-like objects.
The functions are as follows:
-
as_bool(): converts object to atomic typelogical(TRUE, FALSE, NA). -
as_int(): converts object to atomic typeinteger. -
as_dbl(): converts object to atomic typedouble(AKA numeric). -
as_cplx(): converts object to atomic typecomplex. -
as_chr(): converts object to atomic typecharacter. -
as_raw(): converts object to atomic typeraw. -
as_list(): converts object to recursive typelist.
as_num() is an alias for as_dbl().
as_str() is an alias for as_chr().
See also typeof.
Usage
as_bool(x, ...)
as_int(x, ...)
as_dbl(x, ...)
as_num(x, ...)
as_chr(x, ...)
as_str(x, ...)
as_cplx(x, ...)
as_raw(x, ...)
as_list(x, ...)
Arguments
x
|
an R object. |
…
|
further arguments passed to or from other methods. |
Value
The converted object.