Document missing --period arguments in README.

README.rst

@@ -215,15 +215,17 @@ to 200 graph points, which represents a varying number of table columns.
 
 .. table :: Details of `--period` argument
 
-  ======== ======= ======= ============== =========================
+  =========== ========== ========== ============== =========================
   --period    graph      table      to next period columns until next period
-  ======== ======= ======= ============== =========================
+  =========== ========== ========== ============== =========================
+  quarterhour minute     15 minutes 200 minutes    8 (3.3 hours)
+  halfday     30 minutes 12 hours   100 hours      9 (4.1 days)
   day         hour       day        200 hours      9 (8.3 days)
   week        6 hours    week       1200 hours     8 (7.1 weeks)
   month       day        month      5000 hours     7 (~6.7 months)
   quarter     7 days     quarter    1400 days      16 (15.3 weeks)
   year        month      year       (n/a)          (infinity)
-  ======== ======= ======= ============== =========================
+  =========== ========== ========== ============== =========================
 
 "7 days" period used in `--period quarter` are not weeks strictly
 speaking: a week starts a monday/sunday, pendending on the locale.

apachedex/__init__.py

@@ -121,13 +121,6 @@ ITEMGETTER0 = itemgetter(0)
 ITEMGETTER1 = itemgetter(1)
 APDEX_TOLERATING_COEF = 4
 AUTO_PERIOD_COEF = 200
-# X -> Y: Z  Switch from period X to Y after Z periods
-# quarter -> year: 15 quarters (3.75 years)
-# month -> quarter: 6.5 months
-# week -> month: 7.14 weeks (50 days)
-# day -> week: 8.3 days
-# halfday -> day: 8.2 halfdays (100 hours, 4.1 days)
-# halfhour -> halfday: 6.6 halfhours (200 minutes)
 
 # Larger (x < LARGER_THAN_INTEGER_STR == True) than any string starting with
 # a number
@@ -986,7 +979,6 @@ def _asQuarterHourString(timestamp):
 #   than what it should be.
 period_parser = {
   'year': (
-    # graph/table ratio: 12
     _asMonthString,
     lambda x: x.split('/', 1)[0],
     'month',
@@ -998,7 +990,6 @@ period_parser = {
     lambda x: 31. / calendar.monthrange(x.year, x.month)[1],
   ),
   'quarter': (
-    # graph/table ratio: 13(.2)
     _asWeekString,
     _weekStringAsQuarterString,
     # Note: Not calendar weeks, but chunks of 7 days starting on first year's
@@ -1011,7 +1002,6 @@ period_parser = {
     _getWeekCoefficient,
   ),
   'month': (
-    # graph/table ratio: 31
     _asDayString,
     lambda x: '/'.join(x.split('/', 2)[:2]),
     'day',
@@ -1023,7 +1013,6 @@ period_parser = {
     lambda x: 1,
   ),
   'week': (
-    # graph/table ratio: 28
     _as6HourString,
     _hourAsWeekString,
     '6 hours',
@@ -1034,7 +1023,6 @@ period_parser = {
     lambda x: 1,
   ),
   'day': (
-    # graph/table ratio: 24
     _asHourString,
     lambda x: x.split(' ')[0],
     'hour',
@@ -1046,7 +1034,6 @@ period_parser = {
     lambda x: 1,
   ),
   'halfday': (
-    # graph/table ratio: 24
     _as30MinutesString,
     _asHalfDayString,
     '30 minutes',
@@ -1056,7 +1043,6 @@ period_parser = {
     lambda x: 1,
   ),
   'quarterhour': (
-    # graph/table ratio: 30
     _asMinuteString,
     _asQuarterHourString,
     'minute',