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Description
Hi,
currently I’m working with haven.read_sas() function. I’ve probably found a bug when I have variable with label in dataset which has class is (“POSIXct” “POSIXlt”).
Usually variables have two attributes: label and class. But in case when class is (“POSIXct” “POSIXt”) there is three attributes: timezone, label, class.
I resolved this issue by manually change variable attributes order so that label always will be on the first place.
In my opinion, it can be useful to adjust on the haven.read_sas() function’s code.
Here is my MWE / MRE:
---
author: ashemiak
date: 2021-08-01
output: "reprex::reprex\\_document"
title: grave-cobra\_reprex.R
---
``` r
library(data.table)
#> Warning: package 'data.table' was built under R version 4.0.5
library(haven)
#> Warning: package 'haven' was built under R version 4.0.5
library(reprex)
#> Warning: package 'reprex' was built under R version 4.0.5
aaa <- data.table(datetime = c(1550053200, 1553162400, 1556616900, 1561716300, 1570010100, 1570528620, 1574763600, 1577440800, 1580722800, 1542191700, 1543831080),
date = c(17940, 17976, 18016, 18075, 18171, 18177, 18226, 18257, 18295, 17849, 17868))
aaa$datetime <- as.POSIXct(aaa$datetime, origin = '1970-01-01', tz = 'GMT')
aaa$date <- as.Date(aaa$date, tryFormats = '%Y-%m-%d', origin = '1970-01-01')
attributes(aaa$datetime)$label <- 'example datetime'
attributes(aaa$date)$label <- 'example date'
write_sas(aaa, 'C:/Users/ashemiak/Desktop/bbb.sas7bdat')
get_bbb <- read_sas('C:/Users/ashemiak/Desktop/bbb.sas7bdat')Created on 2021-08-01 by the reprex package (v2.0.0)
```
Here is initial dataset AAA:
Here is dataset GET_BBB after read_sas() execution:
Here is what happens with attributes:
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