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Thanks Preston,
I had already tried using zero for the else condition, but as you
point out it distorts the chart. I want there to be no else
statement - ie that the indicator does not indicate prior to the
specified date. The formula I have so far (with Close in the else
condition)is :
If((DayOfMonth()>=12 AND Month()=8 AND Year()=2002) OR (Month()>8 AND
Year()=2002) OR Year() >2002,If(.95*LOW>PREV,0.95*LOW,PREV), C)
This will display a 5% trailing stop loss which moves up but will not
move down, starting from 12 Aug 2002 (I intend to input the date as a
variable when I get the rest sorted out).
I am sure I have seen it done elsewhere - any more thoughts?
Thanks
Shaun
--- In equismetastock@xxxxxxxxxxxxxxx, pumrysh <no_reply@xxxx> wrote:
> Shaun,
>
> Let's see if I can totally confuse you. :-)
>
> Straight from Metastock help[top line of your program]:
>
> IF FUNCTION:A conditional function that returns the second
parameter
> (THEN) if the conditional expression defined by the first parameter
> is true; otherwise, the third parameter is returned (ELSE).
>
> EXAMPLE The formula "if(1<2,3,4)" will always return the
value three.
>
>
> Another way to look at this is:
> if(condition,value,null)
>
> or if the condition is true,{then} use this value,{else} no value.
>
> In your case it would be:
> if({share bought},{stop loss},0)
>
> In your case you will need to consider several factors:
>
> 1.Will the actual date of the purchase be needed or could you
simply
> use a trigger or barsince condition?
>
> 2.In this example you would plot either the stop loss or zero.The
> value between the stop loss and zero may be large. If plotted on a
> price chart it would require a plot of 0 to the stop loss value and
> if prices are around 100 or greater you would have a large price
> display. If plotted in a seperate window it may not be as
> significant. Consider also that this is the case if you plot from
> left to right or from the beginning of the price display. Another
> option and I think what you may be looking for is to plot from
right
> to left or from today backwards. This is unorthodox to metastock
BUT
> I have seen it done. Let me look through some older post and see if
I
> can scrounge up the solution. In the mean time maybe some others
will
> be able to glean another method to accomplish the task.
>
> Preston
>
>
>
>
>
> --- In equismetastock@xxxxxxxxxxxxxxx, "shauncris" <spc901@xxxx>
> wrote:
> > I want to create a stop loss line that only starts calculating
from
> a
> > specified date (when the share was bought). I can partially do
> this
> > with an 'if' function which tests if the date has yet occurred
> (using
> > dayofmonth, month and year functions). But the 'if' function
> > requires a formula to use if the result of the test is false (ie
> > before the specified date). I dont want anything to be displayed
> if
> > the date is before the specified date. How do I do this? Is
there
> > something like a null value or function I can specify if the 'if'
> > function is false, or should I be using something other than
> > the 'if' function?
> >
> > Thanks
> > Shaun
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