Choosing resistors for LDO LDK130
If we look on page 10 of the datasheet, you get the electrical characteristics page. Here, it tells you that the Vadj pin should be around 800mV (784 min, 800 typical and 816 max). Another part to note would be Iadj it states should be max 1uA. This should help you determine the resistor values you need.

NOTE: I usually put in pictures of datasheet tables when I quote parts from them but for some reason it wasn;t letting me upload them today!