When I want to call pandas.read..
function, what is the most memory efficient reader/writer, which would save the most memory on my machine? I want to read a large datafile and wonder if I can pick a format upfront to save the data with some other tool to save some memory consumption in python.
Is it: pd.read_csv, pd.read_hdf, ..
?
The fast file is explained here: Fastest file format for read/write operations with Pandas and/or Numpy
is this also the most memory efficient way?