26 Oct
2009
26 Oct
'09
6:12 p.m.
Alan G Isaac wrote:
On 10/26/2009 4:04 AM, Nils Wagner wrote:
how can I obtain the multiplicity of an entry in a list a = ['abc','def','abc','ghij']
That's a Python question, not a NumPy question.
but we can make it a numpy question! In [15]: a = np.array(['abc','def','abc','ghij']) In [16]: a Out[16]: array(['abc', 'def', 'abc', 'ghij'], dtype='|S4') In [17]: for item in set(a): print item, (a == item).sum() abc 2 ghij 1 def 1 I'll leave pro=filing to the OP. -Chris -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/OR&R (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception Chris.Barker@noaa.gov