[R] averageif and looping

Eko andryanto Prakasa eko.prakasa at yahoo.com
Wed Sep 26 17:38:35 CEST 2012


 haiii

i want to know, is there any script in R to measure looping averageif (like in the excel) .......
for example:
i have a vector
row    value
1        0
2        2
3        -3
4        -2
5        1
6        -2

i want to measure the average of the vector for negative value with window estimation 5
so first mean is (-3+-2)/2
     second mean is (-3+-2+-2)/3  



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