I hope this is the right place to post.

I'm just starting to use index lab.

I've created the McClellan Oscillator for the Wealth-Lab 100 dataset whose symbol is now %MCO_WEALTH-LAB_100

I've run Update Data in the Data Manager and get only one day's worth of data (yesterday)

I've searched the forums and I don't see how to update this index to get past data.

I appreciate your help.

How did you determine that?
What about other DataSets e.g. Dow 30, Nasdaq 100?

1. Delete the Index-Lab DataSet to wipe out its data.
2. Turn off "on demand data updates".
3. Update the "Wealth-Lab 100" DataSet normally.
4. Repeat the creation of the McClellan Oscillator.
5. Do another "Update (Price)", now on the IL DataSet.

With default periods (19/39) and enough data, there should be no issues.

Hello Eugene

I've just done exactly that. I see in the data tool that the new index appears to be current but I am unable to graph it in a chart window

The chart window says "No Data Available". I'm likely doing something incorrectly but it isn't obvious to me.

Thanks again



Update:

I can "see" the data with this code and I graph some other symbol but still unable to graph it by itself. Is this normal?

CODE:
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At the risk of repeating, I'd like to know the following:

*How did you determine that? First you said there's one bar of data, now there's No Data Available. Looking at the Data Manager, how many bars are there?
* What are your data loading settings? i.e. what happens after selecting "All Data"?
* What about other DataSets e.g. Dow 30, Nasdaq 100?
* Have you turned off "on demand data updates"?

QUOTE:
*How did you determine that? First you said there's one bar of data, now there's No Data Available. Looking at the Data Manager, how many
bars are there?

I am in error, there are 5507 bars, my mistake. However, If I open a new chart window and attempt to graph the symbol, the body of the chart displays "No Data Available". I can graph it as an external symbol as per the code above

QUOTE:
* What are your data loading settings? i.e. what happens after selecting "All Data"?
* Have you turned off "on demand data updates"?

On Demand is off. I am not sure where you are referring to "All data"

QUOTE:
* What about other DataSets e.g. Dow 30, Nasdaq 100?

I've just created the DOW version. I cannot chart that in it's own window as well. I can see it if I access it via

CODE:
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Is it possibly because the Index is a Series and not Bars?

QUOTE:
I am in error, there are 5507 bars, my mistake.

1. From the Data Range control, select "All Data". (Wealth-Lab User Guide: Reference > Data Panel > Data Range Control)
2. Also, make sure the Scale is correct i.e. for "Index-Lab Daily", don't select an intraday bar scale.

Funny, I created a %BPI index and that works just fine but %MCO seems not to even though the Data Tool tells me the bars are there

Indeed, strange. Try wiping out the data using the Data Tool (using "Remove all data" on the DataSet), and then updating it once again.

If that didn't work, see my reply #6. If you've double checked that the data loading range is set to All Data, zip and attach these files from the user's Data folder (User Guide > Data > Where data are stored):

..\CustomIndices\%MCO_DOW_30.xml
..\CustomIndices\%MCO_NASDAQ_100.xml

and

..\IndexStaticProvider\Daily\%MCO_DOW_30.WL
..\IndexStaticProvider\Daily\%MCO_NASDAQ_100.WL

I tried it

%A-D_NASDAQ_100
%RSI2_NASDAQ_100
%BPI_NASDAQ_100

graph with no problem



%MCO_NASDAQ_100

does not. !?! All buit with the index lab tool

Steve, there is a good chance of you having overlooked my reply #8 when writing your post.

Hi Eugene

Sorry for delayed response. A chart using "All Data" displays these series.
Any shorter time period, e.g. 10 years does not.

Perhaps I missed something in the documentation but is there a reason behind this and/or any corrective measures I can take?

Thanks again.

QUOTE:
Sorry for delayed response. A chart using "All Data" displays these series.
Any shorter time period, e.g. 10 years does not.

"Does not display" may mean either a "No data available" or display an empty chart caused by a Double.NaN value in the data.

QUOTE:
Perhaps I missed something in the documentation but is there a reason behind this and/or any corrective measures I can take?

See my reply #8 above. Answer can be provided after reviewing your IL files.

Hello Eugene

QUOTE:
"Does not display" may mean either a "No data available" or display an empty chart caused by a Double.NaN value in the data.

I can't reproduce the error as between now and the last post, I restarted WL and it seems I can get the data now.

It's just odd that it comes and goes. I've attached a zip file for you to look at

Thanks

Hi Steve,

Thanks, now I'm able to reproduce the "No Data Available" error with McClellan Oscillator when a Most Recent range has been selected. Not only with the attached file but also with local symbols. I'll take a look at it under debugger to find out what's going on.

Thanks again Eugene. Timing not critical as I'm only just beginning to explore index lab. Plenty to keep me busy in the meantime!

My investigation shows that it depends on the data provider. It nails down to something in implementation of returning a Bars object. For example, plugging in the problematic MCO index's .WL file into a Google provider's DataSet works (i.e. no problem rendering "10 years" of data). However, the same trick fails with the Yahoo provider (and Index-Lab, of course).

Can it be "forced" to use Fidelity data only? I'm using that as my price source for the NASDAQ 100 so I'm not sure what to make of this.

No WLP to verify it. For now, simply use "Fixed bars" or "All data" for that MCO. In fact, more indexes from MS123 IndexDefinitions are affected (click here for their list). I marked the issue for later (low importance). It's not clear what about the IndexDefinition(s) might be causing it.

This known problem is to be fixed in Wealth-Lab 6.9:

QUOTE:
Some IndexDefinitions from MS123 IndexDefinitions library do not load when "Most Recent" or "Date Range" data loading option is selected, producing a chart with "No Data Available" and 0 bars reported in Data Manager > Symbol Details.

Affected: Cumulative Volume Ratio, Demand Index, Eliades TRIN, Haurlan Index, JK HiLo Index, Low Frequency Trading, McClellan Oscillator, McClellan Oscillator - Volume, McClellan Summation Index, McClellan Summation Index - Volume, Merriman Volume Model, New Highs and New Lows Oscillator, Swenlin Trading Oscillator, Swenlin Trading Oscillator - Volume, and Trend Exhaustion Index.
Workaround: Use "All Data" or "Fixed Bars".