Geopoints functions

This is the list of all the functions related to Geopoints data.

`abs()`	Compute the absolute value
`acos()`	Compute the arc cosine
`append()`	Append the given data to file
`asin()`	Compute the arc sine
`atan()`	Compute the arc tangent
`columns()`	Return column names from a `Geopoints` or `Odb`
`cos()`	Compute the cosine
`create_geo()`	Create a new set of `Geopoints`
`create_geo_set()`	Create a new `Geopoints` set
`dates()`	Return the dates from a `Geopoints`
`db_info()`	Return the database description from a `Geopoints`
`distance()`	Compute the distances in a `Fieldset` or `Geopoints` to a reference point
`div()`	Compute the integer part of a divison
`exp()`	Compute the exponential
`file()`	Return a file handler for the specified filename
`geo_to_grib()`	Convert `Geopoints` data to GRIB
`geo_to_kml()`	Convert `Geopoints` data to KML
`geosort()`	Sort a `Geopoints` North to South and West to East
`grib_to_geo()`	Convert GRIB data into `Geopoints`
`intbits()`	Return ranges of bits
`latitudes()`	Return the latitudes of a `Fieldset` or `Geopoints`
`levels()`	Return the levels from a `Geopoints`
`log()`	Compute the natural logarithm
`log10()`	Compute the base 10 logarithm
`longitudes()`	Return the longitudes from a `Fieldset` or `Geopoints`
`mask()`	Generate masks for a `Fieldset` or `Geopoints`
`max()`	Maximum
`mean()`	Return the mean of the values in a `Fieldset` or `Geopoints`
`merge()`	Merges 2 sets of `Fieldset` or `Geopoints`
`metadata()`	Return metadata from a `Geopoints`
`min()`	Minimum
`mod()`	Compute the integer remainder of a divison
`offset()`	Offsets the locations of `Geopoints`
`polar_vector()`	Combine two 1-parameter `Geopoints` variables into polar vector style
`read()`	Read the given file and returns a variable of the appropriate type
`remove_duplicates()`	Remove duplicates from a `Geopoints`
`remove_missing_latlons()`	Removing missing lat/lons form a `Geopoints`
`remove_missing_values()`	Remove missing values from a `Geopoints`
`set_dates()`	Set the date column in the `Geopoints` variable.
`set_latitudes()`	Set the latitudes in a `Fieldset` or `Geopoints`
`set_levels()`	Set the level column in a `Geopoints`
`set_longitudes()`	Set the longitudes in a `Fieldset` or `Geopoints`
`set_metadata()`	Set a `Geopoints` metadata from a definition
`set_stnids()`	Set the stnid column in a `Geopoints`
`set_times()`	Set the time column in a `Geopoints`
`set_value2s()`	Set the value2 column in a `Geopoints`
`set_values()`	Set the values in a `Fieldset` or `Geopoints`
`sgn()`	Compute the sign
`sin()`	Compute the sine
`sqrt()`	Compute the square root
`stnids()`	Return thes tation ids from a `Geopoints`
`subsample()`	Filter the points of the first `Geopoints` that exist in the second one
`sum()`	Compute the sum of the values in a `Fieldset` or `Geopoints`
`tan()`	Compute the tangent
`times()`	Return the times from a `Geopoints`
`to_dataframe()`	Convert a `Geopoints` or `Odb` to a Pandas dataframe
`value2s()`	Return the 2nd values column from a `Geopoints`
`value_columns()`	Return a list of value column names for a `Geopoints`
`values()`	Return the values from a data object
`write()`	Writes/appends the given data to file
`xy_vector()`	Combine two 1-parameter `Geopoints` variables into u/v vector style