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
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Chris.Barker@noaa.gov