Avoid Losing Column Names when Adding Rows to Empty Data Frame in R (Example) | Keep Variable Names

Avoid Losing Column Names when Adding Rows to Empty Data Frame in R (Example) | Keep Variable Names

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Remove NA Values in Only One Column of Data Frame in R (Example) | Drop & Omit | is.na() Function
Remove NA Values in Only One Column of Data Frame in R (Example) | Drop & Omit | is.na() Function
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