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MQL5 リファレンス行列とベクトルのメソッドWrite and ReadReadBin 

ReadBin

The method reads a matrix from a file written by the WriteBin method.

long matrix::ReadBin(
  int                file_handle     // file handle opened for reading
  );

Parameters

file_handle

[in]  File descriptor returned by FileOpen().

Return Value

Returns the number of bytes read from the file. Or -1 in case of error.

Note

Reading is performed from the current file position. The file must be opened as binary for reading (FILE_BIN|FILE_READ flags). The matrix must have a nonzero size. Reading is performed according to the matrix size and type.