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Variable types

When calling Macro functions from Python, variables passed as input to or output from those functions undergo a conversion as described in this table:

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Any Metview function that normally returns a vector will return a numPy array when called from Python. For example, the follownig fieldset functions return numPy arrays:

a = mv.read('my_data.grib') # returns a Fieldset
lats = mv.latitudes(a)      # returns a numPy array
lons = mv.longitudes(a)     # returns a numPy array
vals = mv.values(a)         # returns a numPy array

Pandas Dataframes

The Geopoints data type as an additional function, to_dataframe(), which can be used as shown:

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