Added more keyboard features.

config.yaml

@@ -211,7 +211,13 @@ PHONE_DATA_YIELD:
 # See https://www.rapids.science/latest/features/phone-keyboard/
 PHONE_KEYBOARD:
   CONTAINER: keyboard
-  PROVIDERS: # None implemented yet but this sensor can be used in PHONE_DATA_YIELD
+  PROVIDERS:
+    RAPIDS:
+      COMPUTE: True
+      FEATURES: ["sessioncount","avereageinterkeydelay","changeintextlengthlessthanminusone","changeintextlengthequaltominusone","changeintextlengthequaltoone","changeintextlengthmorethanone","maxtextlength","lastmessagelength"]
+      SRC_FOLDER: "rapids" # inside src/features/phone_keyboard
+      SRC_LANGUAGE: "python"
+      SRC_SCRIPT: src/features/phone_keyboard/rapids/main.py
 
 # See https://www.rapids.science/latest/features/phone-light/
 PHONE_LIGHT:

src/features/phone_keyboard/rapids/main.py

@@ -0,0 +1,55 @@
+import pandas as pd
+import numpy as np
+
+def rapids_features(sensor_data_files, time_segment, provider, filter_data_by_segment, *args, **kwargs):
+
+    keyboard_data = pd.read_csv(sensor_data_files["sensor_data"])
+    requested_features = provider["FEATURES"]
+
+    # name of the features this function can compute
+    base_features_names = ["sessioncount","avereageinterkeydelay","changeintextlengthlessthanminusone","changeintextlengthequaltominusone","changeintextlengthequaltoone","changeintextlengthmorethanone","maxtextlength","lastmessagelength"]
+
+    # the subset of requested features this function can compute
+    features_to_compute = list(set(requested_features) & set(base_features_names))
+
+    keyboard_features = pd.DataFrame(columns=["local_segment"] + features_to_compute)
+    if not keyboard_data.empty:
+        keyboard_data = filter_data_by_segment(keyboard_data, time_segment)
+        
+        if not keyboard_data.empty:
+            keyboard_features = pd.DataFrame()
+
+            keyboard_data["keyboardStrokeDuration"] = keyboard_data['timestamp'].shift(-1) - keyboard_data['timestamp']
+            keyboard_data["sessionStart"]           = keyboard_data["keyboardStrokeDuration"].apply(lambda x: 1 if x>=5000 else 0)
+            keyboard_data["sessionNumber"]          = keyboard_data["sessionStart"].cumsum()
+            keyboard_data["changeInText"]           = keyboard_data["current_text"].str.len() - 2 - keyboard_data['before_text'].str.len()
+            keyboard_data["currentTextLength"]      = keyboard_data["current_text"].str.len() - 2
+
+            if "sessioncount" in features_to_compute:
+                keyboard_features['sessioncount'] = keyboard_data.groupby(['local_segment'])['sessionStart'].sum()
+
+            if "averageinterkeydelay" in features_to_compute:
+                keyboard_features['averageinterkeydelay'] = keyboard_data[keyboard_data['sessionStart'] == 0].groupby(['local_segment','sessionNumber'])['duration'].mean().reset_index().groupby(['local_segment'])['duration'].mean()
+
+            if "changeintextlengthlessthanminusone" in features_to_compute:
+                keyboard_features['changeintextlengthlessthanminusone'] = keyboard_data[keyboard_data.changeInText < -1].groupby(['local_segment','sessionNumber'])['changeInText'].count().reset_index().groupby(['local_segment'])['changeInText'].count()
+
+            if "changeintextlengthequaltominusone" in features_to_compute:
+                keyboard_features['changeintextlengthequaltominusone'] = keyboard_data[keyboard_data.changeInText == -1].groupby(['local_segment','sessionNumber'])['changeInText'].count().reset_index().groupby(['local_segment'])['changeInText'].count()
+
+            if "changeintextlengthequaltoone" in features_to_compute:
+                keyboard_features['changeintextlengthequaltoone'] = keyboard_data[keyboard_data.changeInText == 1].groupby(['local_segment','sessionNumber'])['changeInText'].count().reset_index().groupby(['local_segment'])['changeInText'].count()
+
+            if "changeintextlengthmorethanone" in features_to_compute:
+                keyboard_features['changeintextlengthmorethanone'] = keyboard_data[keyboard_data.changeInText > 1].groupby(['local_segment','sessionNumber'])['changeInText'].count().reset_index().groupby(['local_segment'])['changeInText'].count()
+
+            if "maxtextlength" in features_to_compute:
+                keyboard_features["maxtextlength"] = keyboard_data[keyboard_data.currentTextLength > 0].groupby(['local_segment','sessionNumber'])['currentTextLength'].max().reset_index().groupby(['local_segment'])['currentTextLength'].mean()
+
+            if "lastmessagelength" in features_to_compute:
+                keyboard_data_copy = keyboard_data[['local_segment','sessionNumber','currentTextLength']].copy()
+                keyboard_features["lastmessagelength"] = keyboard_data_copy[keyboard_data_copy.currentTextLength > 0].groupby(['local_segment','sessionNumber'])['currentTextLength'].mean().reset_index().groupby(['local_segment'])['currentTextLength'].mean()
+
+            keyboard_features = keyboard_features.reset_index()
+
+    return keyboard_features