[R] inverse cumsum

Alfredo Alessandrini alfreale74 at gmail.com
Wed Jun 18 12:17:09 CEST 2008


I've a matrix like this:

1985     1.38     1.27     1.84     2.10     0.59     3.47
1986     1.05     1.13     1.21     1.54     0.21     2.14
1987     1.33     1.21     1.77     1.44     0.27     2.85
1988     1.86     1.06     2.33     2.14     0.55     1.40
1989     2.10     0.65     2.74     2.43     1.19     1.45
1990     1.55     0.00     1.59     1.94     0.99     2.14
1991     0.92     0.72     0.50     1.29     0.54     1.22
1992     2.15     1.28     1.23     2.26     1.22     3.17
1993     1.50     0.87     1.68     1.97     0.83     2.55
1994     0.69     0.00     0.76     1.89     0.60     0.87
1995     1.13     1.04     1.19     1.52     1.13     1.78

Can I utilise a cumsum inverse? from 1995 to 1985?


Thank you,

Alfredo



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