refactor: use constants/float64/nan in stats/strided/dnanmeanpn
#5983
| Job | Run time |
|---|---|
| 1m 56s | |
| 1m 56s |
constants/float64/nan in stats/strided/dnanmeanpn
#5983
| Job | Run time |
|---|---|
| 1m 56s | |
| 1m 56s |