Numpy: Difference between revisions
From charlesreid1
(Created page with "=Arrays= ==Initializing an empty array== From <source lang="python"> In [62]: x=[] In [63]: x=np.array(x) In [64]: x Out[64]: array([], dtype=float64) In [66]: x = np.arra...") |
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==Initializing an empty array== | ==Initializing an empty array== | ||
Sometimes you want to initalize an empty array, which is a really inefficient use of memory for large matrices but you could care less if it's a dozen items. | |||
<source lang="python"> | <source lang="python"> | ||
Revision as of 19:27, 28 July 2013
Arrays
Initializing an empty array
Sometimes you want to initalize an empty array, which is a really inefficient use of memory for large matrices but you could care less if it's a dozen items.
In [62]: x=[]
In [63]: x=np.array(x)
In [64]: x
Out[64]: array([], dtype=float64)
In [66]: x = np.array([],dtype=np.float64)
In [67]: x
Out[67]: array([], dtype=float64)