R Programming By Example

Helping ourselves with a centralized settings file

Finally, we show the famous centralized settings file we have been mentioning throughout the example. As you can see, it is simply a list of lists that contains parameters for how our system should behave. Centralizing these options in a single file as we do here can often be very convenient. Instead of changing code when we want different behaviors from our system, we can simply change this file, and everything will be taken care of for us:

SETTINGS <- list(    "debug" = TRUE,    "storage" = list(        "read" = list(            "name" = "CSVFiles",            "environment" = "production"        ),        "write" = list(            list(                "name" = "CSVFiles",                "environment" = "production"            )        ),        "table_names" = list(            "production" = list( "assets" = ...