## Not run: ------------------------------------
# # data
# out1 <- ncdc(datasetid='GHCND', locationid = 'FIPS:02', startdate = '2010-05-01',
# enddate = '2010-05-31', limit=10)
# out2 <- ncdc(datasetid='GHCND', locationid = 'FIPS:02', startdate = '2010-07-01',
# enddate = '2010-07-31', limit=10)
# ncdc_combine(out1, out2)
#
# # data sets
# out1 <- ncdc_datasets(datatypeid='TOBS')
# out2 <- ncdc_datasets(datatypeid='PRCP')
# ncdc_combine(out1, out2)
#
# # data types
# out1 <- ncdc_datatypes(datatypeid="ACMH")
# out2 <- ncdc_datatypes(datatypeid='PRCP')
# ncdc_combine(out1, out2)
#
# # data categories
# out1 <- ncdc_datacats(datacategoryid="ANNAGR")
# out2 <- ncdc_datacats(datacategoryid='PRCP')
# ncdc_combine(out1, out2)
#
# # data locations
# out1 <- ncdc_locs(locationcategoryid='ST', limit=52)
# out2 <- ncdc_locs(locationcategoryid='CITY', sortfield='name', sortorder='desc')
# ncdc_combine(out1, out2)
#
# # data locations
# out1 <- ncdc_locs_cats(startdate='1970-01-01')
# out2 <- ncdc_locs_cats(locationcategoryid='CLIM_REG')
# ncdc_combine(out1, out2)
#
# # stations
# out1 <- ncdc_stations(datasetid='GHCND', locationid='FIPS:12017',
# stationid='GHCND:USC00084289')
# out2 <- ncdc_stations(stationid='COOP:010008')
# out3 <- ncdc_stations(datasetid='PRECIP_HLY', startdate='19900101',
# enddate='19901231')
# out4 <- ncdc_stations(datasetid='GHCND', locationid='FIPS:12017')
# ncdc_combine(out1, out2, out3, out4)
#
# # try to combine two different classes
# out1 <- ncdc_locs_cats(startdate='1970-01-01')
# out2 <- ncdc_stations(stationid='COOP:010008')
# out3 <- ncdc_locs_cats(locationcategoryid='CLIM_REG')
# ncdc_combine(out1, out2, out3)
## ---------------------------------------------
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