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2006 Dec 14
3
Model formula question
...#39;m not familiar with R programming and I'm trying to reproduce a
result from a paper.
Basically, I have a dataset which I would like to model in terms of
successive increments, i.e. (y denote empirical values of y)
y_1 = y1,
y_2 = y1 + delta1,
y_3 = y1 + delta1 + delta2.
...
y_m = y1 + sum_2^m delta j
where delta_j donote successive increments in the y-values, i.e.
delta j = y_j - y_(j-1).
In order to estimate y-values, I'm assuming that delta j is
approximately equal to kj**u, such that my regression model should be
something like this:
^y_1 = a1
^y_2 = a1 + k2**u
^y_3 = a1...
2006 Dec 14
0
Model formula
...#39;m not familiar with R programming and I'm trying to reproduce a
result from a paper.
Basically, I have a dataset which I would like to model in terms of
successive increments, i.e. (y denote empirical values of y)
y_1 = y1,
y_2 = y1 + delta1,
y_3 = y1 + delta1 + delta2.
...
y_m = y1 + sum_2^m delta j
where delta_j donote successive increments in the y-values, i.e.
delta j = y_j - y_(j-1).
In order to estimate y-values, I'm assuming that delta j is
approximately equal to kj**u, such that my regression model should be
something like this:
^y_1 = a1
^y_2 = a1 + k2**u
^y_3 = a1...