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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Count NA Values in R (2 Examples) | Determine Amount in Vector & Data Column | is.na, sum & colSums
Count NA Values in R (2 Examples) | Determine Amount in Vector & Data Column | is.na, sum & colSums
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