Now I change a little my idea, but steel doesn't work. Here's my code:
fibonacci = {{1, 1}, {2, 1}, {3, 2}, {4, 3}, {5, 5}, {6, 8}, {7, 13}}
fmatch = Fit[fibonacci, {1, x, x^2, x^3, x^4, x^5}, x]
matchdata = Fit[import, fmatch, x]
And then, when I want to see this matching, I see only ListPlot:
Show[ListPlot[import], Plot[matchdata, {x, 20100101, 20130810}]]
import is matrix of date and some values (like in first post).
I want fit Fibonacci sequence to my data, but only in part of it. Can Mathematica find best matching in only part of data (but automatically choose which part)?
Below I draw what I want
Red dots - my data
Blue curve (or dots if it possible) - matching Fibonacci sequence by Mathematica (I drew it by hand)
Second possibility of matching
Match Fibonacci sequence to my data when Fibonacci is period of time and values are similar (with any reasonable approximation). But in this case I have totally no idea how do that, so I want do first possibility now (but maybe this is easier, I don't know).
