runs
import os 
import numpy as np
runs.sort()

data = []
for run in runs:
   angleFile = os.path.join(run, 'slideAngle.txt')
   if os.path.exists(angleFile):
      d = np.loadtxt(angleFile)
      data.append(float(d))
   else:
      data.append(0.0)
returnOut = data 