Which language are you using? On Fri, May 29, 2020, 6:03 AM OrielResearch Eila Arich-Landkof < [email protected]> wrote:
> Hi all, > > I am looking for a way to read a large file and generate the following 3 > files: > 1. extract header > 2. extract column #1 from all lines > 3. extract column # 2 from all files > > I use DoFn to extract the values. I am looking for a way to redirect the > output to three different files? My thought was something like this: > > One DoFn that iterate on every line and returns: > 1. header file => returns the first line and empty string for lines 2..n > 2. column #1 from all lines => return column #1 values fro lines 1..n > 3. column # 2 from all files => return column #2 values fro lines 1..n > > What is the correct way to split the output between files? should the DoFn > return tuple? should I process the line in three different DoFn instead of > one DoFn? > > Thanks, > Eila > > -- > Eila > <http://www.orielresearch.com> > Meetup <https://www.meetup.com/Deep-Learning-In-Production/> >
