Hi, Upon request, I had recently submitted an exploration output of those same calculations (as opposed to the graphics). After reading that, progster posted a modification which I believe used the end of month calculations the way you might expect.
See post http://finance.groups.yahoo.com/group/amibroker/message/125857 Mike --- In [email protected], "tipequity" <[EMAIL PROTECTED]> wrote: > > on october 11th 2007, TJ posted a wondeful example of Low-Level gfx > code showing monthly and yearly returns. Today I notice that for the > yearly calculation it uses close at end of the first trading day of > first year and compare it to the first trading day of the 2nd year. In > my opinion this is an incorrect calculation of yearly change. It > excludes the movement in prices of the first trading day of first year > and includes the price movement of the first trading day of next year. > Looking at the code it seems to me that it makes the same mistake is > made in calculating monthly returns. >
