Reorignized to have u = [u_px,u_py].

Everything runs but tests are not passing.

simpegMT/Utils/dataUtils.py

@@ -3,6 +3,8 @@ import numpy as np, matplotlib.pyplot as plt, sys
 import SimPEG as simpeg
 import simpegMT as simpegmt
 import numpy.lib.recfunctions as recFunc
+from scipy.constants import mu_0
+
 def getAppRes(MTdata):
     # Make impedance
     zList = []
@@ -23,6 +25,10 @@ def appResPhs(freq,z):
     app_phs = np.arctan2(z.imag,z.real)*(180/np.pi)
     return app_res, app_phs
 
+def skindepth(rho,freq):
+    ''' Function to calculate the skindepth of EM waves'''
+    return np.sqrt( (rho*((1/(freq * mu_0 * np.pi )))))
+
 def rec2ndarr(x,dt=float):
     return x.view((dt, len(x.dtype.names)))