add recovery timing

Author: yellowbean

absbox/local/component.py

@@ -1855,7 +1855,6 @@ def mkAssumpRecovery(x):
         case {"Rate":r,"Lag":lag}:
             return mkTag(("Recovery",[vNum(r),vInt(lag)]))
         case {"Rate":r,"Timing":ts}:
-            assert sum(ts)==1.0,f"Recvoery timing should sum up to 100%,but current sum up to {sum(ts)}"
             return mkTag(("RecoveryTiming",[vNum(r),vList(ts, numVal)]))
         case {"Rate":r, "ByDays": lst}:
             return mkTag(("RecoveryByDays",[vNum(r),lst]))

docs/source/analytics.rst

@@ -143,7 +143,7 @@ Performing
   recovery assumption for performing asset
 
     * ``{"Rate":0.7,"Lag":18}`` means 70% of current balance will be recovered at 18 periods after defaulted date
-
+    * ``{"Rate":0.45,"Timing":[0.3,0.3,0.4]}``, recovery rate is 45% of current balance, and the recovery will be distributed to 3 periods after defaulted date with 30%,30% and 40% respectively 
 
 
 Non-Performing