BUFR: How can I set keys for a subset? - eccodes FAQ

How can I set keys for a subset?

Step-by-step guide

You have to use the "by rank" syntax i.e. "#n#key". For example using the bufr_filter rules:

set #4#airTemperature = 3.14;

1. This sets the 4th instance of the key "airTemperature" to 3.14.

2. Note: Although you can use the "by condition" syntax for getting values of keys, this method cannot be used for setting such keys i.e. The following will not work:

   # Does not work
   set /subsetNumber=4/airTemperature = 3.14; ## Error

   Also see Setting keys by rank.

Related articles