Kent Johnson wrote:
On Sat, May 31, 2008 at 3:43 PM, Bryan Fodness <[EMAIL PROTECTED]> wrote:
I am trying to read a long string of values separated by a backslash into an
array of known size.
Here is my attempt,
from numpy import *
ay, ax = 384, 512
a = zeros([ay, ax])
for line in open('out.out'):
data = line.split('\\')
Are you trying to accumulate all the lines into data? If so you should use
data = []
for line in open('out.out'):
data.extend(line.split('\\'))
k = 0
for i in range(ay):
for j in range(ax):
a[i, j] = data[k]
k+=1
but, I receive the following error.
Traceback (most recent call last):
File "C:/Users/bryan/Desktop/dose_array.py", line 13, in <module>
a[i, j] = data[k]
ValueError: setting an array element with a sequence.
I think this is because data is a list of strings, not numbers. Change
my line above to
data.extend(int(i) for i in line.split('\\'))
But you don't have to create your array by copying every item. It is
numpy, after all! I think this will work:
data = []
for line in open('out.out'):
data.extend(int(i) for i in line.split('\\'))
Even more concise and possibly faster:
data = open('out.out').read().replace('\n', '\\').split('\\')
a = array(data)
a.shape = (384, 512)
Kent
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