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Math? What is that? I did the same thing but when my daughter went to
college I kept her books.
Sure you can use the formula with two different periods and compare
them. The slope will be cleaner than if you display a longer time
frame on a shorter period chart using the settimeframe method. And
when you change time frames you don't have to worry about changing
the time frame.
When you are comparing the results with time frame support your base
chart has the be the shortest time frame. If you want to compare a 1
and 5 minute slope you have to display the 5 minute data on a 1
minute chart. If you want to make the time frame switch dynamic you
can use this approach:
// Time frame calculations
tf = Interval() / 60;
tfp = tf * 180;
StoPer = Param( "Stoch Period", 5, 1, 50, 1 );
Kper = Param( "Stoch %K avg", 3, 1, 20, 1 );
r1 = Param( "MACD Fast", 2, 2, 50, 1 );
r2 = Param( "MACD Slow", 5, 2, 50, 1 );
TimeFrameSet(tfp);
MacdTf = MACD(r1, r2);
tfStoch = StochK( StoPer, Kper);
TimeFrameRestore();
MacdTfe = TimeFrameExpand(MacdTf, tfp);
StochTfe = TimeFrameExpand(tfStoch, tfp);
This formula assumes you want to compare a longer time frame that is
three times the shorter, 1 to 3, 5 to 15, 15 to 45, etc. When you
plot the longer time frame the expanded MACD will stay the same level
for three periods. If you use a 20 vs 60 minute period the that won't
be true.
Will the results be the same? Good question. When you are using math
functions like tangent, will the slope be the same with both methods?
I doubt it. This is especially true if you are using live data. The
slope may change every time a new tick comes in and that could drive
you and your program nuts. Compare the results of both methods and
see if it makes a difference and which gives the best results.
Barry
--- In amibroker@xxxxxxxxxxxxxxx, "ozzyapeman" <zoopfree@xxx> wrote:
>
> Thanks again, Barry.
>
> On considering the slope of multiple time frames, could I stay
within
> the same time frame (e.g. 1-minute chart) and simply compare a 20-
period
> MA and 60-period MA - essentially longer time frames?
>
> Or should I use the timeframe functions in Amibroker to switch to
higher
> time frames? In the example above, a 20-period MA on a 1-minute
chart
> gives me the average over the last 20 minutes. If I instead switch
to a
> 5-minute chart and compute a 4-period MA, I am looking at the same
20
> minutes average, no?
>
> Wish I hadn't thrown out all my old college and high school text
books.
> I have to wiki even basic math and trig stuff. Amazing how that
> knowledge vanishes if you don't use it for a few years!
>
> =====================
> Posted through Grouply, the better way
> to access your Yahoo Groups like this one.
> http://www.grouply.com/?code=post
>
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