filtering working

rowers/dataprep.py

@@ -95,6 +95,23 @@ from scipy.signal import savgol_filter
 
 import datetime
 
+def filter_df(datadf,fieldname,value,largerthan=True):
+
+    try:
+        x = datadf[fieldname]
+    except KeyError:
+        return datadf
+
+    if largerthan:
+        mask = datadf[fieldname] < value
+    else:
+        mask = datadf[fieldname] >= value
+
+    datadf.loc[mask,fieldname] = np.nan
+
+
+    return datadf
+
 def clean_df_stats(datadf,workstrokesonly=True,ignorehr=True,
                    ignoreadvanced=False):
     # clean data remove zeros and negative values