NMSE example 3.8
pf,          0
pd,      50059
test,         time,            max,            avg
if,    1.04216e+06,              0,           -nan
id,    2.70442e+06,        63.0035,        3.70871
of,    1.02558e+06,              0,           -nan
od,    2.70486e+06,         63.584,        32.2023
df,              0,              0
dd,         63.584,          24391