Hi, I am trying to build a model to explain certain events in advertising and need help coming up with an equation
A sample data set is below. The y values start out behaving exponentially and then reach a break point and then change to logrhrthmic behavior. Can anybody suggest a general equation that would work for this? The y intercept will vary. I would greatly appreciate someone's help. - Jennifer
X. Y.
1,4
2,4.25
3,4.5
4,5
5,5.5
6,6
7,7
8,8
9,9
10,11
11,13,
12,15,
13,17
14,18
15,19
16,20
17,21
18,21.5
19,22
20,22.5
21,23
22,23.5
23,24
24,24.5
Thanks!!
A sample data set is below. The y values start out behaving exponentially and then reach a break point and then change to logrhrthmic behavior. Can anybody suggest a general equation that would work for this? The y intercept will vary. I would greatly appreciate someone's help. - Jennifer
X. Y.
1,4
2,4.25
3,4.5
4,5
5,5.5
6,6
7,7
8,8
9,9
10,11
11,13,
12,15,
13,17
14,18
15,19
16,20
17,21
18,21.5
19,22
20,22.5
21,23
22,23.5
23,24
24,24.5
Thanks!!
