[R] Is it possible to calculate in r the number of days and count of b in var r from the following table:

[ajaykumar cp]

Hello

Is it possible to calculate in r the number of days and count of b in var r
from the following table:


id r s t u
1 a 100 1 27-06-2017
1 a 200 0 29-06-2017
1 b 300 0 01-07-2017
2 a 500 1 12-06-2017
3 b 100 0 02-07-2017
3 a 600 1 02-07-2017
4 a 200 0 12-06-2017
4 a 300 1 15-06-2017
4 b 200 0 18-06-2017
4 a 100 0 01-07-2017
5 a 200 0 04-06-2017

grouped by unique ID where the condition = when r = b, sum of s >= sum of s
when t = 1?

https://stackoverflow.com/q/55724900/11373077 for the discussions

Thank you in advance


-- 
C P Ajaykumar

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