Python: extract list of data in dict in numpy array

Question

n = numpy.array([(0, {'lat': 47.8634123, 'lon': 11.9994587, 'id': 0, 'label': u'271382207'}), 
                 (1, {'lat': 47.8599343, 'lon': 11.9930076, 'id': 1, 'label': u'269321789'}), 
                 (2, {'lat': 47.8601615, 'lon': 11.9933169, 'id': 2, 'label': u'269321788'})])

I want to extract all lat,lon tuples as new numpy array. How's that possible?

Henrik · Accepted Answer · 2015-02-24 11:39:54Z

3

You can do it with a list comprehension:

numpy.array([(e[1]['lat'], e[1]['lon']) for e in n])

This is a basic Python construct that all developers should know about. I suggest you read an introductory book or take a course on Python.

edited Feb 24, 2015 at 11:39

answered Feb 24, 2015 at 11:33

Henrik

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Matt Over a year ago

@user2772305 You should mark this answer as the correct one if it helped you (e.g. by clicking on the check symbol)

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