Fixing DailyBarReader for volume to 0 instead of NaN

catalyst/data/_equities.pyx

@@ -215,11 +215,13 @@ cpdef _read_bcolz_data(ctable_t table,
                 else:
                     continue
 
-        if column_name in ['open', 'high', 'low', 'close', 'volume']:
+        if column_name in ['open', 'high', 'low', 'close']:
             where_nan = (outbuf == 0)
             outbuf_as_float = outbuf.astype(float64) * .000000001
             outbuf_as_float[where_nan] = NAN
             results.append(outbuf_as_float)
+        elif column_name in ['volume']:
+            results.append(outbuf.astype(float64) * .000000001)
         else:
             results.append(outbuf)
     return results

catalyst/data/loader.py

@@ -152,6 +152,8 @@ def load_crypto_market_data(trading_day=None, trading_days=None,
         data_frequency='daily')
     br.columns = ['close']
     br = br.pct_change(1).iloc[1:]
+    br.loc[first_date]=0
+    br=br.sort_index()
 
     # Override first_date for treasury data since we have it for many more years
     # and is independent of crypto data