my $condNum = 0;
for $condNum ( 1 .. 10 ) {
    forceSituation( $conditions[condNum] );
    my $result = measureSituation();
    push @results, $result;
    last if $result->is_error();
    more_manipulation(); # possibly do more stuff for this condition, but only if it's not an error
}
datalog( value => $condNum, llim => 9.9, hlim => 10.1, name => 'number of situations tested' );
datalog( value => fn(@results), llim => -2.7182818, hlim => 3.1415926, name => 'result of those situations' )