If you look at the three sets of data they don't all match. The data is much different each trading day on all!
How could you contruct a chart of A/D line with inaccurate data from Yahoo? Which of the three would be believe is correct? http://www.nyse.com/ (The NYSE Exchange Data) vs. http://finance.yahoo.com/advances (Yahoo Data) vs. http://askmerrill.ml.com/markets_diaries/ (Merrill Lynch Data) --- In [email protected], "Ed Hoopes" <[EMAIL PROTECTED]> wrote: > > I'm trying to import Yahoo! data for the symbol ^NYA - the NYSE > composite index. > > The *.csv Volume field has NYSE total volume that currently is running > around 2 billion shares/day. When I examine the *.csv file in Excel, > the volume is different from day-to-day as expected. BUT when it is > imported into AmiBroker, most of the volume numbers are all the same > - around 2.147. . . billion. > > My suspicion is that this is a 32 bit signed INTEGER data type. 2^32 > / 2. Is this correct? > > My goal is to use the volume to construct an A/D line for the NYSE. > A/D involves adding/subtracting - but if I'm up against an internal > limit of AB maybe that is not possible. > > Any suggestions?? > > Ed Hoopes > AKA ReefBreak >
