Zero line won't line up on TVI indicator | Forex Factory

Options

Permalinks
Print Thread

Similar Threads

Needed: MACD cross over zero line indicator please 5 replies

from zero to zero way 66 replies

ALF/TVI - Simple, effective daytrading 1,114 replies

tvi histogram 0 replies

Yesterday closing line and Today Opening Line Indicator 0 replies

Attachments: Zero line won't line up on TVI indicator
Exit Attachments

Zero line won't line up on TVI indicator

  • #1
  • First Post: Sep 10, 2012 3:17pm Sep 10, 2012 3:17pm
Hello all,

Here is a challenge I'm wondering if you might help me with. I have a TVI indicator (attached) that I am using.

On my chart I have superimposed this indicator with two different settings. Obviously I was wanting to test directional bias with the crosses. However I find that these two indicators, although calculating the same line (just with different settings) do not line up on the chart correctly. The evidence is in the zero line for each indicator.

Thus the crosses that I see are not "true" because the scale for each indicator is different.

How can I make these two indicators (actually the same but again, with different settings) line up to the zero line so that the crosses can be read and back tested?

Thanks in advance
Attached Image (click to enlarge)
Click to Enlarge Name: zero line.gif Size: 26 KB
Attached File(s)
File Type: mq4 TVI.mq4   3 KB | 481 downloads
  • #2
  • Sep 10, 2012 4:01pm Sep 10, 2012 4:01pm
Quoting gspajon
Hello all,

Here is a challenge I'm wondering if you might help me with. I have a TVI indicator (attached) that I am using.

On my chart I have superimposed this indicator with two different settings. Obviously I was wanting to test directional bias with the crosses. However I find that these two indicators, although calculating the same line (just with different settings) do not line up on the chart correctly. The evidence is in the zero line for each indicator.

Thus the crosses that I see are not "true" because the scale for each indicator...
Hi,
You could try going into the Common tab on both indicators and set the Fixed minimum and Fixed maximum to the same levels and this will set the zero level to the same place, depending on how extreme the settings of the two indicators are this could be an easy solution however if one setting is very small and the other very large one of the lines may have its data compressed. The only other solution would be to write both levels into the same indicator.
Trade what you see not what you hope
  • #3
  • Sep 10, 2012 4:31pm Sep 10, 2012 4:31pm
Quoting cja
Hi,
You could try going into the Common tab on both indicators and set the Fixed minimum and Fixed maximum to the same levels and this will set the zero level to the same place, depending on how extreme the settings of the two indicators are this could be an easy solution however if one setting is very small and the other very large one of the lines may have its data compressed. The only other solution would be to write both levels into the same indicator.
CJ...thanks for the suggestion...tried that already...didn't work...it works only to scale the candles and NOT the indicators...

I think I may have figured it out with the code. I wrote a new indicator that uses the data calculated from TVI in two different settings to show the crosses without distorting the reading.

I have attached it if you are interested. I uses iCustom to calculate the same indicator but with two different settings.
  • #4
  • Sep 11, 2012 12:19am Sep 11, 2012 12:19am
Quoting gspajon
CJ...thanks for the suggestion...tried that already...didn't work...it works only to scale the candles and NOT the indicators...

I think I may have figured it out with the code. I wrote a new indicator that uses the data calculated from TVI in two different settings to show the crosses without distorting the reading.

I have attached it if you are interested. I uses iCustom to calculate the same indicator but with two different settings.
Hi,
The common tab for the individual indicators not the common tab for the chart is what I meant, but it looks like you have solved it anyway however using iCustom may cause more cpu usage.
Trade what you see not what you hope
  • #5
  • Sep 11, 2012 5:50am Sep 11, 2012 5:50am
Quoting cja
however using iCustom may cause more cpu usage.
//--

hey cja..... kinda sure you know this, but some might not....

when centering for reference is an issue very often the individual buffers can be set a value that has no relation to the buffers true value....

such as using SetLevelValue,

Inserted Code
 
#property indicator_minimum -0.1
#property indicator_maximum  0.1
 
//---
//---
 
   SetIndexBuffer(0,TVI);
   SetIndexBuffer(1,UpTicks);SetLevelValue(1,0.0);
   SetIndexBuffer(2,DownTicks);SetLevelValue(2,0.5);
   SetIndexBuffer(3,EMA_UpTicks);SetLevelValue(3,-0.5);
   SetIndexBuffer(4,EMA_DownTicks);
   SetIndexBuffer(5,DEMA_UpTicks);
   SetIndexBuffer(6,DEMA_DownTicks);
   SetIndexBuffer(7,TVI_calculate);
   SetIndexStyle(0,DRAW_LINE);

//----

the values set for buffers 1, 2 and 3 are meant to align only..... this can be used on multiple instances of the same indicator and often differing indicators in the same window along with differing pairs in the same window......h
to trade and code, keep both simple... no call to impress....h
  • #6
  • Sep 11, 2012 4:01pm Sep 11, 2012 4:01pm
Hayseed...thanks friend... You alwats come through for me. One last question...by limiting the minimum and maximum sometimes the indicator reading will move off the chart...caon I simply fix or match the zero line and let the rest float? Just wondering because I need to adjust the min./max every time I change time frames...

Thanks again.
  • #7
  • Sep 11, 2012 6:39pm Sep 11, 2012 6:39pm
hey gspajon...... my preference is to not use min and max values if they can be avoided.... and in your case here, it would most likely work best without them...... you really never can tell for sure, for me it's just trial and error.....

sometimes when using a multi-colored bar type indicator were your only interested in the color and not the true value, they can be handy......h

//----
to trade and code, keep both simple... no call to impress....h
  • #8
  • Sep 11, 2012 6:53pm Sep 11, 2012 6:53pm
Quoting hayseed
and in your case here, it would most likely work best without them....
//----

correction.... i see what your refering too..... i'll have to give it some thought......

when your using different values, are you changing all 3 or just the 'u' input.....h

//----
Attached Image (click to enlarge)
Click to Enlarge Name: gspajon.jpg Size: 172 KB
to trade and code, keep both simple... no call to impress....h
  • #9
  • Last Post: Sep 11, 2012 8:57pm Sep 11, 2012 8:57pm
Hayseed...i am changing all 3 values. Ex: for one instance of the indicator I set the TVI at r-5; s-5; u-3. Then I overlay another instance on top with settings of r-13; s-8; u-5. (i'm a fib numbers freak). I set the limit of zero for the final calculation of the TVI using the SetlevelValue (0,0.0). This accomplished my objective of lining up the zero line...but establishing the range is challenginge on different time frames.

This is because the indicator is calculating tick volume which is obviously higher on longer time frames...thus I must set a new range for each time...it gets old.

I was wondering if it is possible to make the zero line constant and the range variable to the time frame and chart size..like the alogrythmic calc on the price chart..it looks bigger or smaller depending on the price range within the chart size.
0 traders viewing now