StockFetcher Forums · General Discussion · Counting days with a high/low near yesterday's close<< >>Post Follow-up
tech-trader
4 posts
msg #97307
Ignore tech-trader
11/3/2010 8:17:50 AM

Looking for any tips on a snippet I'm trying to implement...

I'm trying to count up the number of days that have a high/low near yesterday's close. The obvious solution (snippet below) does not work due to the '1 day ago' being offset in the count operation.

set {S1, count(high near close 1 day ago, 100)}
set {S2, count(low near close 1 day ago, 100)}
set {TOTAL, S1 + S2}

I've tried tried a few different variations of the logic above w/o any luck.

Thanks in advance for any tips.

dangreene
133 posts
msg #97308
Ignore dangreene
modified
11/3/2010 8:27:03 AM

Check to see if this gets you the results you are looking for.

Let us know how you plan to exploit this info ?

Fetcher[
set {ct1, count(high near close 1 day ago, 100)}
set {ct2, count(low near close 1 day ago, 100)}
set {TTL, ct1 + ct2}

add column ct1
add column ct2
add column ttl
]




tech-trader
4 posts
msg #97321
Ignore tech-trader
11/4/2010 6:05:13 AM

Thx for the response.
Turns out my initial fetch code was producing invalid results b/c S1 and S2 are keywords used by SF (thx to SF support team for pointing this out).

The idea here was to calculate an ad-hoc measure of the (horizontal) support strength at a particular level. However after a little more analysis I realize my scheme is not going to work as-is. The reason being is twofold:
a) 'near' equates to within 2% which is too wide of a range IMO
b) the simple scheme I posted will double count days where both the high and low are near the value

I have an idea of how to better calculate what I'm looking for. Unfortunately my idea will utilize variable nesting to the point where I would exceed my performance limitations as a basic member.

Guess I'll have to table this idea until I have time to return to it.

If anyone has already implemented this scheme, any tips are appreciated.

StockFetcher Forums · General Discussion · Counting days with a high/low near yesterday's close<< >>Post Follow-up

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