Python code for Krikwood-Buff Integrals











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I am writing a code for the Krikwood-Buff Integrals
which has the formula as:
enter image description here
and the code is:



A=open ('abc.dat','r')
C=open('def.dat','r')
D=open('ghi','w+')
f=4*pi
for row, col in izip (C, A):
cols=col.strip().split()
if(float(row)!=0):
x2 = ((float(cols[0])**2)*(float(row)-1))
print(integrate.quad(x2, 0, 4))
D.write(cols[0] + 't' + (float(f)*(integrate.quad(x2,0,np.inf))))
D.close()
C.close()
A.close()


But i get the following error as:



D.write(cols[0] + 't' + (float(f)*(integrate.quad(x2,0,np.inf))))
File "/usr/lib/python2.7/dist-packages/scipy/integrate/quadpack.py", line 316, in quad points)
File "/usr/lib/python2.7/dist-packages/scipy/integrate/quadpack.py", line 383, in _quad return _quadpack._qagie (func,bound,infbounds,args,full_output,epsabs,epsrel,limit)
quadpack.error: quad: first argument is not callable



[Finished in 0.1s with exit code 1]



Any suggestions are highly appreciated.



Thank you.









share







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    up vote
    0
    down vote

    favorite












    I am writing a code for the Krikwood-Buff Integrals
    which has the formula as:
    enter image description here
    and the code is:



    A=open ('abc.dat','r')
    C=open('def.dat','r')
    D=open('ghi','w+')
    f=4*pi
    for row, col in izip (C, A):
    cols=col.strip().split()
    if(float(row)!=0):
    x2 = ((float(cols[0])**2)*(float(row)-1))
    print(integrate.quad(x2, 0, 4))
    D.write(cols[0] + 't' + (float(f)*(integrate.quad(x2,0,np.inf))))
    D.close()
    C.close()
    A.close()


    But i get the following error as:



    D.write(cols[0] + 't' + (float(f)*(integrate.quad(x2,0,np.inf))))
    File "/usr/lib/python2.7/dist-packages/scipy/integrate/quadpack.py", line 316, in quad points)
    File "/usr/lib/python2.7/dist-packages/scipy/integrate/quadpack.py", line 383, in _quad return _quadpack._qagie (func,bound,infbounds,args,full_output,epsabs,epsrel,limit)
    quadpack.error: quad: first argument is not callable



    [Finished in 0.1s with exit code 1]



    Any suggestions are highly appreciated.



    Thank you.









    share







    New contributor




    D.H.N is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I am writing a code for the Krikwood-Buff Integrals
      which has the formula as:
      enter image description here
      and the code is:



      A=open ('abc.dat','r')
      C=open('def.dat','r')
      D=open('ghi','w+')
      f=4*pi
      for row, col in izip (C, A):
      cols=col.strip().split()
      if(float(row)!=0):
      x2 = ((float(cols[0])**2)*(float(row)-1))
      print(integrate.quad(x2, 0, 4))
      D.write(cols[0] + 't' + (float(f)*(integrate.quad(x2,0,np.inf))))
      D.close()
      C.close()
      A.close()


      But i get the following error as:



      D.write(cols[0] + 't' + (float(f)*(integrate.quad(x2,0,np.inf))))
      File "/usr/lib/python2.7/dist-packages/scipy/integrate/quadpack.py", line 316, in quad points)
      File "/usr/lib/python2.7/dist-packages/scipy/integrate/quadpack.py", line 383, in _quad return _quadpack._qagie (func,bound,infbounds,args,full_output,epsabs,epsrel,limit)
      quadpack.error: quad: first argument is not callable



      [Finished in 0.1s with exit code 1]



      Any suggestions are highly appreciated.



      Thank you.









      share







      New contributor




      D.H.N is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I am writing a code for the Krikwood-Buff Integrals
      which has the formula as:
      enter image description here
      and the code is:



      A=open ('abc.dat','r')
      C=open('def.dat','r')
      D=open('ghi','w+')
      f=4*pi
      for row, col in izip (C, A):
      cols=col.strip().split()
      if(float(row)!=0):
      x2 = ((float(cols[0])**2)*(float(row)-1))
      print(integrate.quad(x2, 0, 4))
      D.write(cols[0] + 't' + (float(f)*(integrate.quad(x2,0,np.inf))))
      D.close()
      C.close()
      A.close()


      But i get the following error as:



      D.write(cols[0] + 't' + (float(f)*(integrate.quad(x2,0,np.inf))))
      File "/usr/lib/python2.7/dist-packages/scipy/integrate/quadpack.py", line 316, in quad points)
      File "/usr/lib/python2.7/dist-packages/scipy/integrate/quadpack.py", line 383, in _quad return _quadpack._qagie (func,bound,infbounds,args,full_output,epsabs,epsrel,limit)
      quadpack.error: quad: first argument is not callable



      [Finished in 0.1s with exit code 1]



      Any suggestions are highly appreciated.



      Thank you.







      python





      share







      New contributor




      D.H.N is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







      New contributor




      D.H.N is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



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      New contributor




      D.H.N is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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