how to append to a file using scala/breeze library

Question

I wish to write to a file the output row of result matrix (produced in iterations) so that I can support checkpointing.

I figured we can use the csvwrite command to write the entire matrix to a file but how can I append to a file?

I am looking for something like below:

breeze.linalg.csvwrite(new File("small.txt"),myMatrix(currRow,::).t.asDenseMatrix)

However the above command overwrites the file each time the command is executed.

Answer 1

There's nothing built-in to Breeze. (Contributions welcome!)

you can use breeze.io.CSVWriter.write directly if you would like.