Read an output from a completed upstream step

Reads the value of an output emitted by a completed upstream step via the corresponding environment variable.

Usage

get_output(step, key)

Arguments

step

Character string. The step ID (e.g., "fit-lda").

key

Character string. The output key name (e.g., "accuracy").

Value

Character string with the output value, or "" if not set.

Examples

if (FALSE) { # \dontrun{
accuracy <- get_output("fit-lda", "accuracy")
} # }