func mapToSlice(data map[string]float64) ([]string, []float64) {
	var keys []string
	var values []float64

	for key, value := range data {
		keys = append(keys, key)
		values = append(values, value)
	}
	return keys, values
}
// mapToSlice return two slice keys/values
mapToSlice return two slice keys/values
// mapToSlice return two slice keys / values
func mapToSlice(data map[string]float64) ([]string, []float64) {
	var keys []string
	var values []float64
	for key, value := range data {
		keys = append(keys, key)
		values = append(values, value)
	}
	return keys, values
}
func mapToSlice ( data map [ string ] float64 ) ( [ ] string , [ ] float64 ) { var keys [ ] string var values [ ] float64 for key , value := range data { keys = append ( keys , key ) values = append ( values , value ) } return keys , values }
mapToSlice return two slice keys/values
mapToSlice return two slice keys / values