On 8/29/2011 3:28 PM Reed DA (Danny) at Aera said...
Hi all,
I have a matrix which contains temperatures. The columns are time,
spaced 33 seconds apart, and the rows are depth intervals. What I'm
trying to do is create another matrix that contains the rate of change
of temperature for each depth. The array is called LS_JULY_11 and the
output array should be delta_temp
What I have so far is:-
import numpy
#determine the existing matrix size
columnsize = LS_JULY_11.columnSize()
matrixsize = LS_JULY_11.size()
rowsize = matrixsize/columnsize
#define time step
TIME_STEP = 33
#create matrix size of the same size
delta_temp = numpy.zeros((rowsize,columnsize))
#cycle through all indicies in temperature matrix
for i in rowsize:
for j in columnsize:
delta_temp(i,j) = (LS_JULY_11(i,j) -
LS_JULY_11(i,j-1))/TIME_STEP
j = j+1
i = i + 1
the error I get is:-
File "<string>", line 18 (33)
SyntaxError: can't assign to function call
delta_temp access and assignment likely wants to be expressed with
brackets rather than parens.
Emile
ActivePython 2.6.6.15 (ActiveState Software Inc.) based on
Python 2.6.6 (r266:84292, Aug 24 2010, 16:01:11) [MSC v.1500 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> spam(1,2)=6
File "<stdin>", line 1
SyntaxError: can't assign to function call
>>>
Help would be greatly appreciated
Thanks
Danny
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