Nothing
## ---- include = FALSE---------------------------------------------------------
knitr::opts_chunk$set(
collapse = TRUE,
comment = "#>"
)
## ----eval=FALSE, echo=TRUE----------------------------------------------------
# library(libr)
#
# # Get path to sample data
# pkg <- system.file("extdata", package = "libr")
#
# # Define data library
# libname(sdtm, pkg, "csv")
#
#
## ----eval=FALSE, echo=TRUE----------------------------------------------------
# # View a dataset
# sdtm$DM
# # # A tibble: 87 × 24
# # STUDYID DOMAIN USUBJID SUBJID RFSTDTC RFENDTC RFXSTDTC RFXENDTC RFICDTC RFPENDTC
# # <chr> <chr> <chr> <chr> <date> <date> <lgl> <lgl> <date> <date>
# # 1 ABC DM ABC-01… 049 2006-11-07 NA NA NA 2006-10-25 NA
# # 2 ABC DM ABC-01… 050 2006-11-02 NA NA NA 2006-10-25 NA
# # 3 ABC DM ABC-01… 051 2006-11-02 NA NA NA 2006-10-25 NA
# # 4 ABC DM ABC-01… 052 2006-11-06 NA NA NA 2006-10-31 NA
# # 5 ABC DM ABC-01… 053 2006-11-08 NA NA NA 2006-11-01 NA
# # 6 ABC DM ABC-01… 054 2006-11-16 NA NA NA 2006-11-07 NA
# # 7 ABC DM ABC-01… 055 2006-12-06 NA NA NA 2006-10-31 NA
# # 8 ABC DM ABC-01… 056 2006-11-28 NA NA NA 2006-11-21 NA
# # 9 ABC DM ABC-01… 113 2006-12-05 NA NA NA 2006-11-28 NA
# # 10 ABC DM ABC-01… 114 2006-12-14 NA NA NA 2006-12-01 NA
# # # 77 more rows
# # # 14 more variables: DTHDTC <lgl>, DTHFL <lgl>, SITEID <chr>, BRTHDTC <date>, AGE <dbl>,
# # # AGEU <chr>, SEX <chr>, RACE <chr>, ETHNIC <chr>, ARMCD <chr>, ARM <chr>, ACTARMCD <lgl>,
# # # ACTARM <lgl>, COUNTRY <lgl>
# # # Use `print(n = ...)` to see more rows
#
## ----eval=FALSE, echo=TRUE----------------------------------------------------
#
# lib_load(sdtm)
# # # library 'sdtm': 8 items
# # - attributes: csv loaded
# # - path: C:/packages/libr/inst/extdata
# # - items:
# # Name Extension Rows Cols Size LastModified
# # 1 AE csv 150 27 88.1 Kb 2020-09-18 14:30:23
# # 2 DA csv 3587 18 527.8 Kb 2020-09-18 14:30:23
# # 3 DM csv 87 24 45.1 Kb 2020-09-18 14:30:23
# # 4 DS csv 174 9 33.7 Kb 2020-09-18 14:30:23
# # 5 EX csv 84 11 26 Kb 2020-09-18 14:30:23
# # 6 IE csv 2 14 13 Kb 2020-09-18 14:30:23
# # 7 SV csv 685 10 69.9 Kb 2020-09-18 14:30:24
# # 8 VS csv 3358 17 467 Kb 2020-09-18 14:30:24
#
## ----eval=FALSE, echo=TRUE----------------------------------------------------
# # Get total number of records
# nrow(sdtm.DM)
# # [1] 87
#
# # Get frequency counts for each arm
# table(sdtm.DM$ARM)
# # ARM A ARM B ARM C ARM D SCREEN FAILURE
# # 20 21 21 23 2
## ----eval=FALSE, echo=TRUE----------------------------------------------------
# dictionary(sdtm)
# # # A tibble: 130 x 10
# # Name Column Class Label Description Format Width Justify Rows NAs
# # <chr> <chr> <chr> <chr> <chr> <lgl> <int> <chr> <int> <int>
# # 1 AE STUDYID character NA NA NA 3 NA 150 0
# # 2 AE DOMAIN character NA NA NA 2 NA 150 0
# # 3 AE USUBJID character NA NA NA 10 NA 150 0
# # 4 AE AESEQ numeric NA NA NA NA NA 150 0
# # 5 AE AETERM character NA NA NA 72 NA 150 0
# # 6 AE AELLT logical NA NA NA NA NA 150 150
# # 7 AE AELLTCD logical NA NA NA NA NA 150 150
# # 8 AE AEDECOD character NA NA NA 43 NA 150 0
# # 9 AE AEPTCD numeric NA NA NA NA NA 150 0
# # 10 AE AEHLT character NA NA NA 63 NA 150 0
# # # ... with 120 more rows
#
## ----eval=FALSE, echo=TRUE----------------------------------------------------
# age_groups <- datastep(sdtm.DM,
# keep = c("USUBJID", "AGE", "AGEG"), {
#
# if (AGE >= 18 & AGE <= 29)
# AGEG <- "18 to 29"
# else if (AGE >= 30 & AGE <= 44)
# AGEG <- "30 to 44"
# else if (AGE >= 45 & AGE <= 59)
# AGEG <- "45 to 59"
# else
# AGEG <- "60+"
#
# })
# age_groups
# # # A tibble: 87 x 3
# # USUBJID AGE AGEG
# # <chr> <dbl> <chr>
# # 1 ABC-01-049 39 30 to 44
# # 2 ABC-01-050 47 45 to 59
# # 3 ABC-01-051 34 30 to 44
# # 4 ABC-01-052 45 45 to 59
# # 5 ABC-01-053 26 18 to 29
# # 6 ABC-01-054 44 30 to 44
# # 7 ABC-01-055 47 45 to 59
# # 8 ABC-01-056 31 30 to 44
# # 9 ABC-01-113 74 60+
# # 10 ABC-01-114 72 60+
# # # ... with 77 more rows
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