From 1e6d08b0c9ac5983691b182631c71e9d46ee71cc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89tienne=20Simon?= <esimon@esimon.eu>
Date: Sun, 17 May 2015 14:56:34 -0400
Subject: Use signed integer.

---
 data/csv_to_hdf5.py | 16 ++++++++--------
 data/init_valid.py  | 14 +++++++-------
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/data/csv_to_hdf5.py b/data/csv_to_hdf5.py
index 97cf428..b011b52 100755
--- a/data/csv_to_hdf5.py
+++ b/data/csv_to_hdf5.py
@@ -51,12 +51,12 @@ def read_taxis(input_directory, h5file, dataset):
     print >> sys.stderr, 'read %s: begin' % dataset
     size=getattr(data, '%s_size'%dataset)
     trip_id = numpy.empty(shape=(size,), dtype='S19')
-    call_type = numpy.empty(shape=(size,), dtype=numpy.uint8)
-    origin_call = numpy.empty(shape=(size,), dtype=numpy.uint32)
-    origin_stand = numpy.empty(shape=(size,), dtype=numpy.uint8)
-    taxi_id = numpy.empty(shape=(size,), dtype=numpy.uint16)
-    timestamp = numpy.empty(shape=(size,), dtype=numpy.uint32)
-    day_type = numpy.empty(shape=(size,), dtype=numpy.uint8)
+    call_type = numpy.empty(shape=(size,), dtype=numpy.int8)
+    origin_call = numpy.empty(shape=(size,), dtype=numpy.int32)
+    origin_stand = numpy.empty(shape=(size,), dtype=numpy.int8)
+    taxi_id = numpy.empty(shape=(size,), dtype=numpy.int16)
+    timestamp = numpy.empty(shape=(size,), dtype=numpy.int32)
+    day_type = numpy.empty(shape=(size,), dtype=numpy.int8)
     missing_data = numpy.empty(shape=(size,), dtype=numpy.bool)
     latitude = numpy.empty(shape=(size,), dtype=data.Polyline)
     longitude = numpy.empty(shape=(size,), dtype=data.Polyline)
@@ -87,12 +87,12 @@ def read_taxis(input_directory, h5file, dataset):
     return splits
 
 def unique(h5file):
-    unique_taxi_id = numpy.empty(shape=(data.taxi_id_size,), dtype=numpy.uint32)
+    unique_taxi_id = numpy.empty(shape=(data.taxi_id_size,), dtype=numpy.int32)
     assert len(taxi_id_dict) == data.taxi_id_size
     for k, v in taxi_id_dict.items():
         unique_taxi_id[v] = k
 
-    unique_origin_call = numpy.empty(shape=(data.origin_call_size,), dtype=numpy.uint32)
+    unique_origin_call = numpy.empty(shape=(data.origin_call_size,), dtype=numpy.int32)
     assert len(origin_call_dict) == data.origin_call_size
     for k, v in origin_call_dict.items():
         unique_origin_call[v] = k
diff --git a/data/init_valid.py b/data/init_valid.py
index eed0059..cecaca9 100755
--- a/data/init_valid.py
+++ b/data/init_valid.py
@@ -12,18 +12,18 @@ import data
 
 _fields = {
     'trip_id': 'S19',
-    'call_type': numpy.uint8,
-    'origin_call': numpy.uint32,
-    'origin_stand': numpy.uint8,
-    'taxi_id': numpy.uint16,
-    'timestamp': numpy.uint32,
-    'day_type': numpy.uint8,
+    'call_type': numpy.int8,
+    'origin_call': numpy.int32,
+    'origin_stand': numpy.int8,
+    'taxi_id': numpy.int16,
+    'timestamp': numpy.int32,
+    'day_type': numpy.int8,
     'missing_data': numpy.bool,
     'latitude': data.Polyline,
     'longitude': data.Polyline,
     'destination_latitude': numpy.float32,
     'destination_longitude': numpy.float32,
-    'travel_time': numpy.uint32,
+    'travel_time': numpy.int32,
 }
 
 
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