BinaryFiles: Binary files
In MarcooLopez/SFSI_data: Sparse Family and Selection Index

Description Usage Arguments Author(s) Examples

Save/read a fortran-formatted binary file that was saved at a defined precision (single or double).

saveBinary(X, filename = paste0(tempdir(), "/file.bin"), 
  row.names = TRUE, col.names = TRUE, size = 4, verbose = TRUE)
  
readBinary(filename = paste0(tempdir(), "/file.bin"), 
  indexRow = NULL, indexCol = NULL, verbose = TRUE)

`X`	Numeric matrix to save
`filename`	Name of the binary file to save/read
`row.names`	`TRUE` or `FALSE` to whether save rows names
`col.names`	`TRUE` or `FALSE` to whether save columns names
`size`	Size of a real variable in bytes (`size=4` for single precision and `size=8` for double precision) that matrix to be saved `X` will occupy
`indexRow`	Vector of integers indicating the rows to be read from the file. Default `indexRow=NULL` will read all the rows
`indexCol`	Vector of integers indicating the columns to be read from the file. Default `indexCol=NULL` will read all the columns
`verbose`	`TRUE` or `FALSE` to whether printing file information

Marco Lopez-Cruz (lopezcru@msu.edu) and Gustavo de los Campos

  require(SFSI)
  data(wheatHTP)

  # Save matrix
  saveBinary(X,paste0(tempdir(),"/Matrix1.bin"),size=4)  # as single-precision
  saveBinary(X,paste0(tempdir(),"/Matrix2.bin"),size=8)  # as double-precision

  # Read the single-precision matrix
  X2 = readBinary(paste0(tempdir(),"/Matrix1.bin"))
  X2[1:10,1:5]
  sum(abs(X-X2))   # Note the loss of precision

  # Read the double-precision matrix
  X2 = readBinary(paste0(tempdir(),"/Matrix2.bin"))
  X2[1:10,1:5]
  sum(abs(X-X2))   # No loss of precision

  # Read specific rows and columns
  indexRow = c(2,4,5,8,10)
  indexCol = c(1,2,6,7,10)
  X2 = readBinary(paste0(tempdir(),"/Matrix2.bin"),indexRow=indexRow,indexCol=indexCol)
  X2
  sum(abs(X[indexRow,indexCol]-X2))