Extracting age and gender again
You can now also take another look at your pattern for pulling out age and gender from the injury narratives. In the last chapter you took two steps to extract the pattern and then pull it apart. Take a go at doing it in one step!
แบบฝึกหัดนี้เป็นส่วนหนึ่งของหลักสูตร
String Manipulation with stringr in R
แบบฝึกหัดเชิงโต้ตอบแบบลงมือทำ
ลองทำแบบฝึกหัดนี้โดยเติมโค้ดตัวอย่างนี้ให้สมบูรณ์
# narratives has been pre-defined
narratives
# Add capture() to get age, unit and sex
pattern <- optional(DGT) %R% DGT %R%
optional(SPC) %R% or("YO", "YR", "MO") %R%
optional(SPC) %R% or("M", "F")
# Pull out from narratives
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