tmaugham
115 posts
msg #57006
- Ignore tmaugham |
11/26/2007 1:39:03 PM
Is is possible to use 'not' in an expression? For example, price has not been increasing for the last 10 days. If I can't use that construction is there any other way to get the same results?
Thanks,
Tom
|
nikoschopen
2,824 posts
msg #57019
- Ignore nikoschopen |
11/26/2007 6:43:59 PM
Depending on how complex the filter might be, you can use the following method to utilize the "NOT" expression in ure screener:
set{variable, count(conditional,1)}
set{NOT, 1 - variable}
NOT equals 1
Suppose you do NOT want (or exclude)stocks that made new 52-week low included in ure results:
set{lo52wk, count(price reached a new 52 week low,1)}
set{NOT_lo52wk, 1 - lo52wk}
NOT_lo52wk equals 1
/*append ure own filter here*/
So, for example, if I want to find stocks that have not made the new 52-week low within the last 2 weeks but which I think have bottomed nonetheless based on the lower Bollinger band crossover:
|
nikoschopen
2,824 posts
msg #57021
- Ignore nikoschopen |
11/26/2007 6:51:37 PM
...price has not been increasing for the last 10 days.
I might as well just write it out for you. Taking the above example, you would write it as:
|
tmaugham
115 posts
msg #57030
- Ignore tmaugham |
11/26/2007 7:43:33 PM
Thank you very much, most helpful....
Tom
|
four
5,087 posts
msg #125625
- Ignore four |
10/16/2015 7:45:05 PM
pop
|
sshymko
9 posts
msg #125628
- Ignore sshymko
modified |
10/16/2015 8:01:21 PM
The suggested workaround greatly complicates and obscures an otherwise natural and descriptive filtering language. Instead, would be great to extend the language itself. Internally it can be implemented as count() and comparison operators. But end users would greatly appreciate the high-level NOT syntax.
Thanks in advance.
|