duplicates drop if

[Yoonseo Yang]

Hi, I'm new to STATA. Wondering if I can include a condition to 'duplicates drop'.
There are four "00612" observations of the ZIP variable. I want only to keep one observation which is "RES_RATIO" value is high. (is 0.99299 on the image below)
STATA allows this? Please help!

[Rahidul Islam]

Hi Yang!
Have do you find any solution for this problem? If yes please share it with me. I have the same problem. Thanks in advance.

[Rich Goldstein]

as you can see from the help file, if and in are each allowed; if you want exact code to help you, you need to supply a -dataex- example as discussed in the FAQ