[SciPy-user] Generating a 4D array from a set of 3D arrays
Robert Kern
robert.kern at gmail.com
Wed May 21 13:45:20 EDT 2008
On Wed, May 21, 2008 at 12:05 PM, Dharhas Pothina
<Dharhas.Pothina at twdb.state.tx.us> wrote:
> Hi,
>
> I'm trying to read 3 dimensional time series data from a file and store it in a numpy array so I can analyze the data. I'm having problems working out how to append the 3D array from each timestep to make a 4D array. I worked out that I could make a list of 3D arrays but if I do that I'm having issues slicing it the way I need to.
Keep appending to the list to build it up. Then make an array from
that list using array().
from numpy import array
a = array([[[ 1, 2],[ 3, 4],[ 5, 6]],[[101, 102],[103,
104],[105, 106]],[[201, 202],[203, 204],[205, 206]]])
data_list=[]
newdata = a
for i in arange(5):
data_list.append(newdata) # This is the idiomatic way to append to a list.
newdata = newdata + 1000
data_array = array(data_list)
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
-- Umberto Eco
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