library(foreign)
sample100 <- read.spss("sample100.sav",FALSE)
summary(sample100)
str(sample100)
d.sample100 <- data.frame(sample100)
summary(d.sample100)
s100 <- sample100
sample100 <- read.spss("sample100.por",FALSE)
stopifnot(identical(s100, sample100)) # no need for further summary() etc
pbc <- read.spss("pbc.sav",FALSE)
summary(pbc)
str(pbc)
d.pbc <- data.frame(pbc)
summary(d.pbc)
pbco <- read.spss("pbcold.sav",FALSE)
stopifnot(identical(pbc, pbco))
## summary(pbco)
## str(pbco)
## d.pbco <- data.frame(pbco)
## summary(d.pbco)
pbc. <- read.spss("pbc.por",FALSE)
summary(pbc.)
str(pbc.) # has variable.labels
stopifnot(all.equal(d.pbc, data.frame(pbc.), tolerance = 1e-15))
electric.s <- read.spss("electric.sav",TRUE,TRUE)
electric.p <- read.spss("electric.por",TRUE,TRUE)
electric.s4 <- read.spss("electric.sav",TRUE,TRUE,max.value.labels = 4)
summary(electric.s)
ii <- c(2,10)
vl <- list(FIRSTCHD = c("OTHER CHD"= 6, "FATAL MI"= 5, "NONFATALMI"= 3,
"SUDDEN DEATH" = 2, "NO CHD" = 1),
DAYOFWK = c(SATURDAY=7, FRIDAY=6, THURSDAY=5,
WEDNSDAY=4, TUESDAY=3, MONDAY=2, SUNDAY=1))
stopifnot(identical(electric.s, electric.p),
identical(electric.s[-ii], electric.s4[-ii]),
identical(vl, lapply(electric.s4[ii], attr, "value.labels")),
identical(lapply(vl, names),
lapply(electric.s[ii], function(.) rev(levels(.)))))
## after "long label patch":
invisible(Sys.setlocale (locale="C")) ## to resolve locale problem
ldat <- read.spss("spss_long.sav", to.data.frame=TRUE)
ldat
nnms <- nms <- names(ldat)
names(nnms) <- nms
stopifnot(identical(nms, c("variable1", "variable2")),
identical(nnms, attr(ldat, "variable.labels")))
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