@BeginModule
@NewPage
@Name      = Ninfo
@Title     = Print the number of parameters, levels or times
@Section   = Information
@Class     = Information
@Arguments = ifile
@Operators = npar nlevel nyear nmon ndate ntime

@BeginDescription
This module prints the number of variables, levels or times of the 
input dataset.
@C  according to the chosen operator.
@EndDescription
@EndModule


@BeginOperator_npar
@Title     = Number of parameters

@BeginDescription
Prints the number of parameters (variables).
@EndDescription
@EndOperator


@BeginOperator_nlevel
@Title     = Number of levels

@BeginDescription
Prints the number of levels for each variable.
@EndDescription
@EndOperator


@BeginOperator_nyear

@Title     = Number of years
@BeginDescription
Prints the number of different years.
@EndDescription
@EndOperator


@BeginOperator_nmon
@Title     = Number of months

@BeginDescription
Prints the number of different combinations of years and months.
@EndDescription
@EndOperator


@BeginOperator_ndate
@Title     = Number of dates

@BeginDescription
Prints the number of different dates.
@EndDescription
@EndOperator


@BeginOperator_ntime
@Title     = Number of timesteps

@BeginDescription
Prints the number of timesteps.
@EndDescription
@EndOperator


@BeginExample
To print the number of parameters (variables) in a dataset use:
@BeginVerbatim
   cdo npar ifile
@EndVerbatim
To print the number of months in a dataset use:
@BeginVerbatim
   cdo nmon ifile
@EndVerbatim
@EndExample
