[R] inverse cumsum

From: Alfredo Alessandrini <alfreale74_at_gmail.com>
Date: Wed, 18 Jun 2008 12:17:09 +0200


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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