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### runit.mapLevels.R
###------------------------------------------------------------------------
### What: Unit tests for mapLevels et al.
### $Id: runit.mapLevels.R 1784 2014-04-05 02:23:45Z warnes $
### Time-stamp: <2006-10-29 16:41:41 ggorjan>
###------------------------------------------------------------------------
### {{{ --- Test setup ---
if(FALSE) {
library("RUnit")
library("gdata")
}
### }}}
### {{{ mapLevels, is.*, as.*, [.*
test.mapLevels <- function()
{
## Integer and numeric
checkException(mapLevels(1:3)) # wrong class(x)
checkException(mapLevels(1.5)) # wrong class(x)
## Factor
f <- factor(c("B", "C", "A"))
fMapInt <- list(A=as.integer(1), B=as.integer(2), C=as.integer(3))
fMapInt1 <- list(B=as.integer(1), C=as.integer(2))
fMapCha <- list(A="A", B="B", C="C")
fMapInt <- as.levelsMap(fMapInt)
fMapInt1 <- as.levelsMap(fMapInt1)
fMapCha <- as.levelsMap(fMapCha)
fMapCha1 <- fMapCha[c(1, 3)] # this will test also [.levelsMap
checkIdentical(mapLevels(f), fMapInt)
checkTrue(is.levelsMap(mapLevels(f))) # test for is.levelsMap
checkTrue(is.levelsMap(fMapInt)) # test for as.levelsMap
checkTrue(!gdata:::.isCharacterMap(fMapInt))
checkIdentical(mapLevels(f, sort=FALSE), fMapInt) # sort is not used for factors
checkIdentical(mapLevels(f[1:2], drop=TRUE), fMapInt1)
checkIdentical(mapLevels(f, codes=FALSE), fMapCha)
checkIdentical(mapLevels(f[c(2, 3)], drop=TRUE, codes=FALSE), fMapCha1)
## Character
cha <- c("Z", "M", "A")
chaMapInt <- list(A=as.integer(1), M=as.integer(2), Z=as.integer(3))
chaMapIntO <- list(Z=as.integer(1), M=as.integer(2), A=as.integer(3))
chaMapInt1 <- list(M=as.integer(1), Z=as.integer(2))
chaMapCha <- list(A="A", M="M", Z="Z")
chaMapInt <- as.levelsMap(chaMapInt)
chaMapIntO <- as.levelsMap(chaMapIntO)
chaMapInt1 <- as.levelsMap(chaMapInt1)
chaMapCha <- as.levelsMap(chaMapCha)
checkIdentical(mapLevels(cha), chaMapInt)
checkIdentical(mapLevels(cha, sort=FALSE), chaMapIntO) # sort works for characters
checkIdentical(mapLevels(cha[1:2], drop=TRUE), chaMapInt1)
checkIdentical(mapLevels(cha, codes=FALSE), chaMapCha)
## List
l <- list(f=f, cha=cha)
l1 <- list(cha=cha, f=f)
l2 <- list(cha=cha, f=f, i=1:10)
lMapInt <- list(f=fMapInt, cha=chaMapInt)
lMapCha <- list(f=fMapCha, cha=chaMapCha)
lMapInt <- as.listLevelsMap(lMapInt)
lMapCha <- as.listLevelsMap(lMapCha)
lMapChaC <- as.list(sort(unique(c(cha, as.character(f)))))
lMapChaCO <- as.list(unique(c(cha, as.character(f))))
names(lMapChaC) <- unlist(lMapChaC)
names(lMapChaCO) <- unlist(lMapChaCO)
lMapChaC <- as.levelsMap(lMapChaC)
lMapChaCO <- as.levelsMap(lMapChaCO)
checkIdentical(mapLevels(l), lMapInt)
checkTrue(is.listLevelsMap(mapLevels(l))) # test for is.listLevelsMap
checkTrue(is.listLevelsMap(lMapInt)) # test for as.listLevelsMap
checkIdentical(mapLevels(l, codes=FALSE), lMapCha)
checkException(mapLevels(l, combine=TRUE)) # can not combine integer maps
checkIdentical(mapLevels(l, codes=FALSE, combine=TRUE), lMapChaC)
checkIdentical(mapLevels(l1, codes=FALSE, combine=TRUE), lMapChaC)
checkIdentical(mapLevels(l1, codes=FALSE, combine=TRUE, sort=FALSE), lMapChaCO)
checkException(mapLevels(l2)) # only char and factor
## Data.frame
df <- data.frame(f1=factor(c("G", "Abc", "Abc", "D", "F")),
f2=factor(c("Abc", "Abc", "B", "D", "K")),
cha=c("jkl", "A", "D", "K", "L"),
int=1:5)
dfMapInt <- list(f1=mapLevels(df$f1), f2=mapLevels(df$f2), cha=mapLevels(df$cha))
dfMapInt <- as.listLevelsMap(dfMapInt)
dfMapInt1 <- dfMapInt[c(1, 3)] # this will test also [.listLevelsMap
checkException(mapLevels(df)) # wrong class of int
checkIdentical(mapLevels(df[, 1:3]), dfMapInt)
checkIdentical(mapLevels(df[, c(1, 3)]), dfMapInt1)
}
### }}}
### {{{ .check*
test.checkLevelsMap <- function(x)
{
## --- levelsMap ---
## not a list
checkException(gdata:::.checkLevelsMap(x="A", method="raw"))
## list without names
checkException(gdata:::.checkLevelsMap(x=list("A"), method="raw"))
fMapInt <- list(A=as.integer(1), B=as.integer(2), C=as.integer(3))
## x should be levelsMap
checkException(gdata:::.checkLevelsMap(x=fMapInt, method="class"))
## --- listLevelsMap ---
map <- list(as.levelsMap(fMapInt), as.levelsMap(fMapInt))
map1 <- list(fMapInt, fMapInt)
class(map1) <- "listLevelsMap"
## x should be a listLevelsMap
checkException(gdata:::.checkListLevelsMap(x=map, method="class"))
## x should be also a list of levelsMaps
checkException(gdata:::.checkListLevelsMap(x=map1, method="class"))
## the rest is done with levelsMap tests
}
### }}}
### {{{ c.*
test.cLevelsMap <- function()
{
f1 <- factor(letters[c(2, 1)])
f2 <- factor(letters[c(3, 1, 2)])
mapCha1 <- mapLevels(f1, codes=FALSE) # get maps
mapCha2 <- mapLevels(f2, codes=FALSE)
mapCha1S <- mapLevels(as.character(f1), codes=FALSE, sort=FALSE)
mapCha2S <- mapLevels(as.character(f2), codes=FALSE, sort=FALSE)
mapChaTest <- list(a="a", b="b")
mapChaTest1 <- list(a="a", b="b", c="c")
mapChaTest2 <- list(c="c", a="a", b="b")
class(mapChaTest) <- class(mapChaTest1) <- class(mapChaTest2) <- "levelsMap"
mapChaTest3 <- list(mapChaTest, mapChaTest1, mapChaTest, mapChaTest1)
class(mapChaTest3) <- "listLevelsMap"
checkIdentical(c(mapCha1), mapChaTest)
checkIdentical(c(mapCha2, mapCha1), mapChaTest1)
checkIdentical(c(mapCha2S, mapCha1S, sort=FALSE), mapChaTest2)
l <- list(f1, f2)
mapCha <- mapLevels(l, codes=FALSE)
checkIdentical(c(mapCha, mapCha), mapChaTest3)
checkIdentical(c(mapCha, recursive=TRUE), mapChaTest1)
checkException(c(mapLevels(f1))) # can not combine integer “levelsMaps”
## Example with maps of different length of components
map1 <- list(A=c("a", "e", "i", "o", "u"), B="b", C="c", C="m",
D=c("d", "e"), F="f")
map2 <- list(A=c("a", "z", "w", "y", "x"), F="f", G=c("g", "h", "j"),
i="i", k=c("k", "l"), B="B")
map0Test <- list(A=c("a", "e", "i", "o", "u"), B="b", C="c", C="m",
D=c("d", "e"), F="f",
A=c("z", "w", "y", "x"), G=c("g", "h", "j"),
i="i", k=c("k", "l"), B="B")
map0Test <- as.levelsMap(map0Test)
mapTest <- sort(map0Test)
map1 <- as.levelsMap(map1)
map2 <- as.levelsMap(map2)
map <- c(map1, map2)
map0 <- c(map1, map2, sort=FALSE)
checkIdentical(map, mapTest)
checkIdentical(map0, map0Test)
}
### }}}
### {{{ unique
test.uniqueLevelsMap <- function()
{
map <- list(A=c(1, 2, 1, 3), B=4, C=1, C=5, D=c(6, 8), E=7, B=4,
D=c(6, 8))
map1 <- map
map1[[1]] <- map[[1]][c(1, 2, 4)]
map1[[7]] <- NULL # remove B=4
map1[[7]] <- NULL # remove D=c(6, 8)
## unique (used in as.levelsMap), will remove duplicates (A=1)
checkIdentical(as.levelsMap(map1), as.levelsMap(map))
}
### }}}
### {{{ mapLevels<-
"test.mapLevels<-" <- function()
{
## Some errors
checkException("mapLevels<-"(1.1, value=2)) # wrong class(x)
checkException("mapLevels<-"(complex(1.1), value=2)) # wrong class(x)
f <- factor(c("A", "B", "C"))
fMapInt <- mapLevels(f)
## can not apply integer "levelsMap" to "character"
checkException("mapLevels<-"(as.character(f), value=fMapInt))
fMapCha <- mapLevels(f, codes=FALSE)
## can not apply character levelsMap to "integer"
checkException("mapLevels<-"(as.integer(f), value=chaMapCha))
fMapFuzz <- fMapInt
fMapFuzz[[1]] <- "A"
## all components of 'value' must be of the same class
checkException("mapLevels<-"(as.character(f), value=fMapFuzz))
checkException("mapLevels<-"(as.integer(f), value=fMapFuzz))
## x integer, value integer levelsMap
f <- factor(letters[c(10, 15, 1, 2)])
fMapInt <- mapLevels(f)
fInt <- as.integer(f)
mapLevels(fInt) <- fMapInt
checkIdentical(fInt, f)
## x factor, value integer levelsMap
fInt <- factor(as.integer(f))
mapLevels(fInt) <- fMapInt
checkIdentical(fInt, f)
## above is essentially the same as levels<-.factor
fInt1 <- factor(as.integer(f))
levels(fInt1) <- fMapInt
checkIdentical(fInt1, f)
## x character, value character levelsMap
cha <- c("B", "A", "C")
chaMapCha <- as.levelsMap(list(A1="A", B2="B", C3="C"))
mapLevels(cha) <- chaMapCha
chaTest <- factor(c("B2", "A1", "C3"))
checkIdentical(cha, chaTest)
## and a bit more for components of length > 1
cha <- c("G", "I", "B", "A", "C", "D", "Z")
chaMapCha <- as.levelsMap(list(A1=c("A", "G", "I"), B2="B", C3=c("C", "D")))
mapLevels(cha) <- chaMapCha
chaTest <- factor(c("A1", "A1", "B2", "A1", "C3", "C3", NA))
checkIdentical(cha, chaTest)
## x factor, value character levelsMap
f <- factor(c("G", "I", "B", "A", "C", "D", "Z"))
fMapCha <- as.levelsMap(list(A1=c("A", "G", "I"), B2="B", C3=c("C", "D")))
mapLevels(f) <- fMapCha
fTest <- factor(c("A1", "A1", "B2", "A1", "C3", "C3", NA))
checkIdentical(f, fTest)
## Two factors and character map
f1 <- factor(letters[1:10])
f2 <- factor(letters[5:14])
checkIdentical(as.integer(f1), as.integer(f2)) # the same integer codes
mapCha1 <- mapLevels(f1, codes=FALSE) # get maps
mapCha2 <- mapLevels(f2, codes=FALSE)
mapCha <- c(mapCha1, mapCha2) # combine maps
## apply map
mapLevels(f1) <- mapCha # the same as levels(f1) <- mapCha
mapLevels(f2) <- mapCha # the same as levels(f2) <- mapCha
checkIdentical(as.integer(f1), 1:10) # \ internal codes are now
checkIdentical(as.integer(f2), 5:14) # / "consistent" among factors
## The same with list
l <- list(f1=f1, f2=f2)
mapCha <- mapLevels(l, codes=FALSE, combine=TRUE)
mapLevels(l) <- mapCha
checkIdentical(as.integer(l$f1), 1:10) # \ internal codes are now
checkIdentical(as.integer(l$f2), 5:14) # / "consistent" among factors
## and data.frame
df <- data.frame(f1=f1, f2=f2)
mapCha <- mapLevels(df, codes=FALSE, combine=TRUE)
mapLevels(df) <- mapCha
checkIdentical(as.integer(df$f1), 1:10) # \ internal codes are now
checkIdentical(as.integer(df$f2), 5:14) # / "consistent" among factors
}
### }}}
### {{{ Dear Emacs
## Local variables:
## folded-file: t
## End:
### }}}
###------------------------------------------------------------------------
### runit.mapLevels.R ends here
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