BF: Was testing column type frequency the wrong way around

ukbparse/fileinfo.py

@@ -113,9 +113,9 @@ def has_header(sample,
     # if more than two thirds of rows
     # have a different type to the first
     # row, let;s sat we have a header.
-    threshold    = collections.defaultdict(lambda : 0.66)
+    threshold    = collections.defaultdict(lambda : 0.34)
     threshold[1] = 1.0
-    threshold[2] = 0.49
+    threshold[2] = 0.51
 
     for col, ctypes in coltypes.items():
 
@@ -123,8 +123,8 @@ def has_header(sample,
         hist  = collections.Counter(ctypes)
         thres = threshold[len(ctypes)]
 
-        if hist[t0] / len(ctypes) > thres: colcount += 1
-        else:                              colcount -= 1
+        if (hist[t0] / len(ctypes)) < thres: colcount += 1
+        else:                                colcount -= 1
 
     return colcount > 0