Re: no data exclution and unique combination.

[Terry Reedy]

On 8/9/2012 4:06 PM, giuseppe.amatu...@gmail.com wrote:

Terry and MRAB,
thanks for yours suggestions,
in the end i found this solution


mask=( a != 0 ) & ( b != 0  )

a_mask=a[mask]
b_mask=b[mask]

array2D = np.array(zip(a_mask,b_mask))

unique=dict()
for row in  array2D :
     row = tuple(row)
     if row in unique:
         unique[row] += 1
     else:
         unique[row] = 1

I believe the 4 lines above are equivalent to
   unique[row] = unique.get(row, 0) + 1

--
Terry Jan Reedy

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