The following function calls were simplified:
time_columnargument not needed anymore (this is automatically taken from
test_typeargument not needed anymore (this is automatically taken from
vo2_columnarguments not needed anymore (this is automatically taken from
read_data() to read data from metabolic cart (COSMED and CORTEX).
interpolate() to interpolate breath-by-breath data into second-by-second.
perform_average() to perform bin- and rolling-averages.
Added testing of functions (internal modification only, not visible to the user).
Added new print method.
Improved error messages in case
read_data() cannot find the name of the time column provided.