StockFetcher Forums · General Discussion · Different results - why?<< >>Post Follow-up
jimdandy
13 posts
msg #161361
Ignore jimdandy
9/13/2024 3:58:39 PM

Hello,

I am wondering why these two lines are not delivering the same result:

volume > 2 * volume one day ago

and

set {dob, volume one day ago * 2}
volume > dob

The first one is delivering far more results.

Somebody can help me on this?

Thank you!

snappyfrog
731 posts
msg #161362
Ignore snappyfrog
9/13/2024 7:21:01 PM

Fetcher[
volume > 2 * volume one day ago
]



Fetcher[
set {dob, volume one day ago * 2}
volume > dob
]



And this is different also:

Fetcher[
volume > volume 1 day ago * 2
]




xarlor
587 posts
msg #161363
Ignore xarlor
9/13/2024 9:14:16 PM

SF cannot have more than 1 calculation per line.

This has 2 calculations in the line and so breaks SF
Calculation 1: volume >
Calculation 2: 2 * volume one day ago:

Fetcher[
volume > 2 * volume one day ago
]




This has only one calculation per line and is the correct way to write what you intended:

Fetcher[
set {dob, volume one day ago * 2}
volume > dob
]



nibor100
1,045 posts
msg #161364
Ignore nibor100
9/14/2024 9:08:54 AM

for some added oddness:
Ed S.:

Fetcher[
add column 2
]



jimdandy
13 posts
msg #161365
Ignore jimdandy
9/14/2024 2:02:31 PM

Thank you for the explanation!

xarlor
587 posts
msg #161366
Ignore xarlor
9/14/2024 7:56:54 PM

To elaborate, after SF reaches the first calculation, it ignores everything else in the line. So essentially, this line:

volume > 2 * volume one day ago

is being interpreted by SF as:

volume > 2

This is why it returns the entire universe of tickers, more or less.

StockFetcher Forums · General Discussion · Different results - why?<< >>Post Follow-up

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