Stats - counting NA

[leppott]

Describe the bug
User email from 2021-11-01.

I’ve attached the stats output files for air temperature and water level and an excerpt from the aggregate file since it is so
large, but you should be able to see what I’m talking about. I guess the in-water sensor malfunctioned so there was no water
temperature or water level data for 2019. There was however air temperature data. Both the air temperature and water level
files show n=218 for 2019 even though there were no water level values for 2019.

To Reproduce
Steps to reproduce the behavior:

1. Data file with some measurements NA.
2. After stats getting N for all rows not just those with data (i.e., NA are counted)

Expected behavior
NA should not be counted.

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Add any other context about the problem here.

[leppott]

SumStats.updated.R
fun.Stats.R
fun.Stats.File.R
fun.PeriodStats.R

[leppott]

Replace length(x) with sum(!is.na(x))