The “h2o.uploadFile” Function in R

• Package: h2o

• Purpose: To upload a file into the H2O cluster’s key-value store.

• General Class: Data Upload

• Required Argument(s):

• path: Character. The path to the file to be uploaded.

• Notable Optional Arguments:

• destination_frame: Character. The name of the key to upload the data into. If not specified, H2O will generate a key.

• header: Integer. Row number to use as column names. The default is -1, which means autodetect.

• sep: Character. The field separator character. The default is “ ”.

• col.types: List. A named list of types for columns. The default is NULL.

• na.strings: Character vector. A character vector of strings to interpret as missing values. The default is NULL.

• Example (with Explanation):

• # Load necessary package
  library(h2o)
  
  # Initialize H2O
  h2o.init()
  
  # Upload a CSV file into the H2O cluster
  h2o.uploadFile(path = "data.csv")
  
  # View the keys in the H2O cluster
  h2o.ls()

• In this example, the h2o.uploadFile function from the h2o package is used to upload a CSV file named “data.csv” into the H2O cluster’s key-value store. By default, H2O will generate a key for the uploaded data. After uploading the file, the h2o.ls function is used to view the keys currently stored in the H2O cluster.