#' Title processed the read data by implementing all needed function
#'
#' @param data dataframe read
#'
#' @return processed/clean data
#' @export
#'
#' @examples
#'
processed_data<-function(data){
# The value of the following columns affecting the model and introducing the NA value for "No phone service" and and "No internet service" need to cleanup the data for these columns MultipleLine,OnlineSecurity,OnlineBackup,DeviceProtection,TechSupport,StreamingTV,StreamingMovies
data$MultipleLines <- as.character(data$MultipleLines)
data$OnlineSecurity <- as.character(data$OnlineSecurity)
data$OnlineBackup <- as.character(data$OnlineBackup)
data$DeviceProtection <- as.character(data$DeviceProtection)
data$TechSupport <- as.character(data$TechSupport)
data$StreamingTV <- as.character(data$StreamingTV)
data$StreamingMovies <- as.character(data$StreamingMovies)
# convert factor variables into character variables before changing the values
data$MultipleLines[data$MultipleLines=="No phone service"] <- "No"
data$OnlineSecurity[data$OnlineSecurity=="No internet service"] <- "No"
data$OnlineBackup[data$OnlineBackup=="No internet service"] <- "No"
data$DeviceProtection[data$DeviceProtection=="No internet service"] <- "No"
data$TechSupport[data$TechSupport=="No internet service"] <- "No"
data$StreamingTV[data$StreamingTV=="No internet service"] <- "No"
data$StreamingMovies[data$StreamingMovies=="No internet service"] <- "No"
# converting character variables into factor variables
data$MultipleLines <- as.factor(data$MultipleLines)
data$OnlineSecurity <- as.factor(data$OnlineSecurity)
data$OnlineBackup <- as.factor(data$OnlineBackup)
data$DeviceProtection <- as.factor(data$DeviceProtection)
data$TechSupport <- as.factor(data$TechSupport)
data$StreamingTV <- as.factor(data$StreamingTV)
data$StreamingMovies <- as.factor(data$StreamingMovies)
#data$customerID<-NULL
# check the number of NA rows if it is relatively small in number then ignore those rows from the analysis
new_data<-omit_na(convert_data_variable(data))
return(new_data);
}
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