filter.columns.as.na.Rd

% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/filter.columns.as.na.R
\name{filter.columns.as.na}
\alias{filter.columns.as.na}
\title{Delete Colums with only NA}
\usage{
filter.columns.as.na(df, value = "not reported")
}
\arguments{
\item{df}{Data frame}

\item{value}{A value or character that should be converted to NA.}
}
\value{
Returns the filtered data frame
}
\description{
Sometimes actual NA values are indicated as other strings (e.g. "not reported"). This function converts these strings to NA and ultimately deletes any column consisting only of NA values.
}
\examples{
df <-  data.frame(num1 = c(1,2,3,4), num2= c(5,6,7, "not reported"))
df <- filter.column.as.na(df, "no value")
}