Dear list,
I ran into the following.
If you multiply a 10-element pytables array with a 1-element NumPy array using
tables.expr, then the return value has length one. If you do the same
in pure NumPy, the
return value has length 10.
I pasted a small script below shows this.
Is this is expected or not?
Best, Gabriel
Script:
+++++++
import tables as tb
import numpy as np
f = tb.openFile('test.h5', 'a')
factor = np.array([3.])
ar = np.arange(10.)
# PyTables
ar = f.createArray(f.root, 'test1', ar)
e = tb.Expr('factor*ar')
print e.eval() # [ 0.]
# NumPy
print factor*ar # [ 0. 3. 6. 9. 12. 15. 18. 21. 24. 27.]
f.close()
------------------------------------------------------------------------------
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