collapse_column.Rd

% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/collapse_column.R
\name{collapse_column}
\alias{collapse_column}
\title{Collapse Factor Levels}
\usage{
collapse_column(df, column, by, factor_levels = NULL, new_column = NULL)
}
\arguments{
\item{df}{A data frame}

\item{column}{The column/factor of interest}

\item{by}{Character vector - input for grep}

\item{factor_levels}{Character vector - new levels for factor; default is input of >by<}

\item{new_column}{Character - name of new column that is added to the data frame}
}
\value{
Returns the same list but with data frames containing the expression values in a new colummn.
}
\description{
This function combines factor levels with similar names and adds a new column via simple regex.
}
\examples{
lungMeta <- collapse_column(lungMeta, column = "diagnoses.primary_diagnosis",
                            by = c("squamous", "adeno", "acinar", "bronchio"),
                            factor_levels = c("Squamous cell carninoma", "Adenocarcinoma", "Acinar carcinoma", "Bronchio-alveolar"), new_column = "diagnosis")
}