Nothing
library(SASxport)
Sys.setenv("TZ"="GMT")
df1 <- data.frame( f=c(1.0, -1.0), d=as.integer(c(-1,1) ) )
write.xport(df1, file='df1.xpt')
df2 <- read.xport(file='df1.xpt')
print(df1)
print(df2)
stopifnot(all(df1==df2))
df3 <- data.frame(
x.continuous=seq(-100,100,by=0.5),
x.integer=as.integer(seq(-100,100,by=0.5))
)
write.xport(df3, file='df3.xpt')
df4 <- read.xport(file='df3.xpt')
stopifnot(all(df3==df4))
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