Attempts to execute the text in cmd. This is done in a try/catch environment to capture any errors.
Arguments
- cmd
Character object containing the R command to evaluate in the try/catch block
- tc_env
list of with names corresponding to object names and corresponding Values to define in the try/catch environment
- capture
Character vector of values to capture after the command is successfully captured. If capture is
NULL(e.g.,c(), then all objects generated by cmd will be captured.
Value
list with the following fields:
isgood: Boolean indicating the whether the evaluation was successful.
error: If the evaluation failed this contains the error object.
msgs: Character vector of messages and/or errors.
capture: List with names of objects to be captured and values corresponding to those captured objects.
Examples
# Successful command
res_good = FM_tc("good_cmd=ls()", list(), c("good_cmd"))
res_good
#> $capture
#> $capture$good_cmd
#> [1] "capture" "cmd" "name" "tc_env"
#>
#>
#> $isgood
#> [1] TRUE
#>
# Failed command
res_bad = FM_tc("bad_cmd =not_a_command()", list(), c("bad_cmd"))
res_bad
#> $error
#> <simpleError in not_a_command(): could not find function "not_a_command">
#>
#> $isgood
#> [1] FALSE
#>
#> $msgs
#> [1] "message: could not find function \"not_a_command\""
#> [2] "call: not_a_command"
#>