weeks ago I noticed there could be a malfunction on the package
I was wrong. It works fine.
After intensive trials with many ISP and hardwares it seems:
a) I had a problem on the firmware of my modem-router, making the line
b) there is an unclear API download policy from Yhaoo. I mean may be
there are some hidden limitation about downloading, which infringement
lead to a kind of ban.
But be careful, the ban is silent, so is not easy discover it.
Some people over internet says there is a limit of the tickers number
(200?) for each interrogation. It seems to me only a part of the
I think there is a problem of speed too: if the interrogation speed is
"too high" it seems to be considered malicious from the Yahoo firewall.
If somebody argue 200 tickers are a lot of data i remember the SP500
index is made of 500 tickers.
So at the moment
- I splitted the tickers list in many groups and
- I slowed down the speed of the script with this loop
loop for (r=1; r<1000; r+=1)
- if somebody can suggest my a different option to slow down the script
because my way lengtens too much the output script.
- do you have some others suggestions or experiences?
Knowlegde to share: finding the tickers of major stock exchange
indexes is not easy. Now I got them, so if somebody wants to share
these lists is welcome.
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