Package org.ejml.ops

Class ReadCsv

java.lang.Object
org.ejml.ops.ReadCsv
Direct Known Subclasses:
ReadMatrixCsv
public class ReadCsv
extends Object

Base class for reading CSV formatted files. CSV stands for column-space-value where text strings are separated by a space character. The values are typically stored in a human readable format. The encoded text for a single variable is referred to as a word.

Comments are allowed and identified by starting a line with the comment character. The comment character is user configurable. By default there is no comment character.

  • Constructor Details

    • ReadCsv

      public ReadCsv​(InputStream in)
      Constructor for ReadCsv
      Parameters:
      in - Where the input comes from.

  • Method Details

    • setComment

      public void setComment​(char comment)
      Sets the comment character. All lines that start with this character will be ignored.
      Parameters:
      comment - The new comment character.

    • getLineNumber

      public int getLineNumber()
      Returns how many lines have been read.
      Returns:
      Line number

    • getReader

      public BufferedReader getReader()
      Returns the reader that it is using internally.
      Returns:
      The reader.

    • extractWords

      @Nullable protected @Nullable List<String> extractWords() throws IOException
      Finds the next valid line of words in the stream and extracts them.
      Returns:
      List of valid words on the line. null if the end of the file has been reached.
      Throws:
      IOException

    • parseWords

      protected List<String> parseWords​(String line)
      Extracts the words from a string. Words are seperated by a space character.
      Parameters:
      line - The line that is being parsed.
      Returns:
      A list of words contained on the line.