Hi all,
The last few days I've been working on a script to manipulate some scientific
data. One thing I would like to be able to do is find relative maxima in a data
set.
I'm using numpy in python3 (which I think I can't do without because of utf16
encoding of my data source) and a series of np.arrays. When looking around the
web and some forums I came across the scipy function argrelextrema, which
seemed to do just what I wanted. The problem is that I can't get the function
to work, probably because scipy in python3 does not yet support the
argrelextrema function. I can however, not find a reference to this really
being the problem, and was wondering if someone here could maybe help me out.
The code I used is shown below. The function to return the maximum values is
called by a different script. Then, when running, it returns an error like the
one below the code.
Script:
import numpy as np
import scipy as sp
def max_in_array_range(MaxArray, Column, LowBound):
'''
Finding the max value an array with a predefined in a certain column
and from a threshold index.
The complete array is loaded through Max Array. The column is first
selected.
The, the LowBound is called (the data is only interesting from a
certain point onward.
'''
TempArray = MaxArray[:, Column] # Creation of Temporary Array to ensure
1D Array and specification of the LowBound in the next line.
return sp.argrelextrema(TempArray[LowBound:], np.greater)
Error message:
Traceback (most recent call last):
File "MyScript.py", line 15, in <module>
Varrr = FD.max_in_array_range(CalcAndDiffArray, 5 ,MyBound)
File "/MyPath/Script.py", line 82, in max_in_array_range
return sp.argrelmax(TempArray[LowBound:], np.greater)
AttributeError: 'module' object has no attribute 'argrelmax'
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