On 7/25/2011 3:03 PM, Kumar Mainali wrote:
Greetings
I have a dataset with occurrence records of multiple species. I need
to get rid of multiple listings of the same occurrence point for a
species (as you see below in red and blue typeface). How do I create a
dataset only with unique set of longitude and latitude for each
species? Thanks in advance.
Species_nameLongitudeLatitude
Abies concolor-106.60135.868
Abies concolor-106.49335.9682
Abies concolor-106.48935.892
Abies concolor-106.49635.8542
Accipiter cooperi-119.68834.4339
Accipiter cooperi-119.79234.5069
Accipiter cooperi-118.79734.2581
Accipiter cooperi-77.3833339.68333
Accipiter cooperi-77.3833339.68333
Accipiter cooperi-75.9915340.633335
Accipiter cooperi-75.9915340.633335
- Kumar
It would seem to me that what you are wanting is a dictionary where the
species name is the key and the value is a list of Long/Lat
So assuming your data is in a list like so (such as you might get from
reading lines from a file) ['Abies concolor-106.60135.868', 'Abies
concolor-106.49335.9682']
You could say
output = dict()
for record in my_long_list:
values = record.rsplit(' ', 2)
key = values[:1]
value = ' '.join(values[1:])
try:
output[key].append(value)
except KeyError:
output[key] = [value]
Something like that should do.
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