yes now it is in mine also. It was not there when I downloaded yesterday. Sometimes after one does a download things change. I had this last week. Downloaded the data on 1 computer and a few hours later on the other. When calculating my signals I got a different result. After searching for 1.5 hours what the hell was going on I found that for 1 symbol (NDSN) there was a difference in volume for the last day, just enough that my system gave a signal on 1 computer and not on the other. I did a download again on the computer I had done the first download and then the volumes were the same and the signals as well.
Maybe the switch from FD to M is not a good example. But the policy at QP has definitely changed with respect to the removal of inactive symbols. Not sure after FD if users will be able to spot inactive symbols in time. To preserve them will take a lot of work and if I have to do work when paying for a data vendor I can easily switch to free EOD quotes at Yahoo, eSignal and Quote.com which one can easily download in 3 separate databases using Amibroker. I was paying for the QP service for the reliability and to be sure I will have data everyday. Sofar I was happy, recent changes will make me think about switching. In fact the recent changes at QP makes it easier to use free data I think since inactive symbols will not automatically be emptied out, but I will investigate. I think it is annoying that users are not informed about changes. Apparently there have been requests to do something with these inactive symbols but I was not aware of any discussion on it. Apparently the majority of QP users are happy with the recent changes. Ed ----- Original Message ----- From: optiontrader3290 To: [email protected] Sent: Sunday, June 03, 2007 5:14 PM Subject: [quotes-plus] Re: changes in the database Ed: M is in my database. If you have a problem with the change from FD to M you may wish to talk to Macy, Inc they caused this change not Quotes Plus. I dare say that you will find the same problem if you check Yahoo Data or any other data source. Dale --- In [email protected], "Edward Pottasch" <[EMAIL PROTECTED]> wrote: > > hi, > > today I find that all of a sudden FD is no longer an active symbol. Apparently there has been a name change and FD is now M. In the database FD is gone but there is no M. > > I wonder who decided that inactive symbols should disappear from 1 day to the other. It is clear now that a user can impossibly prepare for this other than to make a backup of the database every day in some other format and then afterwards try to figure out what changes in the database have been made and reconstruct. Has this been discussed on this board? QP makes changes without informing their customers. I never received any notice that there is a change in policy. It was just there because apparently there is a majority of users who want this. How has this majority been measured. Seems to me that when designing trading systems one does not want symbols to suddenly disappear. I guess the majority of QP users is not using the data to design systems. I guess I am forced to look into alternatives. > > Ed >
