Custom Fitness Function
Sometimes You need to tell optimizer that you want to find solutions with minimum number of trades /signals.
The problem comes when you have longer In Sample and shorter Out of Sample Window.
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AMM scripting - error and some questions
On below AMM trading item 529 I'm getting a compiler error in the #functions# block of onperiodend, line 69 and below: "Data", "Functions", "Order" does not exist in the current

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How to make a changing stock universe
I am trying to eliminate untradeable stocks from my backtesting. The problem is that the list of untradeable stocks varies with time, for example as the marketcap grows or shrinks. (A market cap that is

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Debugging System in Simulator
How can I visualize the data / vectors the Simulator created on a per bar base? Tried using Output() and OutputList() in the Simulator, but seems it does not work.

As example, say I'd like to vizualize...

DMI Stochastic Extreme
New to QS, looking for this indicator in QS code. Can't find anything on search, anyone previously produced this ?

How to I delete all symbols in which a field is empty?
I want to remove all tickers in which the field "Market" contains no data. How do I do this?

Thanks....

Hysteresis in ranking sytem - reduce trading with time decay factor
I'm tying to replicate a feature from an interesting trading system I have found, but having a hard time getting it working (as mostly..).

Suppose the following simplified system, where I trade top 1...

"New Messages Only" not sticky
The "New Messages Only" check box on this web page is not sticky for me. at least not for the Chrome browser.

Pete...

Can a csv field be set to NaN?
When downloading Morningstar data, it is common to have missing information. For example, see 2009 Cap Spending for Toyato in http://financials.morningstar.com/ratios/r.html?t=7203&region=jpn&culture=en-US&ownerCountry=USA.

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How to get the last day of the month in C#
How do you add the last day of the month to a date field of a csv which only includes Year and Month?

I'm trying to modify the C# Pre Script in the Morningstar downloader. Currently the Morningstar downloader...

Deleted a system.. anyway to get it back?
I just deleted a trading system by mistake... without thinking I thought I pressed Update but instead it was delete and without even thinking I press OK not realizing it was OK to confirm deletion!

Anyway...

Morningstar Fundamental Data for International Companies
I did not have success using the Morningstar fundamental downloader for international stocks. (I set name3 to be the ticker+the region. For example name3=1301&region=jpn.) However, although the downloader

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Volume at Price
Hi,
I thought I had read that one could chart VAP in QS..
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new to C# and Javascript
hi,

i am trying to code the following but since i am new to these languages I do not seem to have big success. ...

How do you lag fundamental data?
I am new to QS and was wondering how you go about lagging fundamental data so that it approximates when it was actually released?
I have tried the http://www.quantshare.com/item-1181-morningstar-historical-fundamentals
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Indexing: First !NaN value w/o looping?
Suppose I have c# code like below to set index base == 1 to a vector.

Is there a smarter way to find first non NaN value "firstbar" in vector to avoid looping? ...

Functions: access downloaded indicators
I'm writing a function that needs to use a value from a downloaded indicator.

In this case I'm multipling my band by the factor of Fisher transform which I downloaded. ...

Conversion error importing data
I am trying to use the ASCII import tool to import 1 min historical data of the nasdaq100. I seem to have everything working correctly except the time interval doesn't seem to work. I believe the problem

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Keyboard command for time-frame change
Is there any keyboard command for changing chart time-frame? Also, for adding and reducing number of bars plotted as well as for scrolling the chart left and right.

Dynamic List in Simulation
A technical question: is it possible (I'm sure it is as QS is serious sophisticated) to use a dynamic list in the Simulation of a strategy?

In particular, very simply, I would like to create a dynamic...

Holding Constant Positions
Is there a way to hold a constant position in the portfolio (e.g. 20% to AGG)? For our clients we would like to include a couple 'core' holdings to reduce volatility, and want to include these positions

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Forum: my threads
How do I pull my threads out? I tried search but but nickname it doesn't work. I don't see in my profile "my threads" which makes it hard to find the subjects I'm following, wrote, or asked

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Vertical line passing through all chart panes
The vertical trendline currently plots for the currently active pane. It would be great if its properties can contain an option to extend to all panes.

Metastock as content type in downloader
It will be great if 'Metastock' can also be added as 'content type' in downloader. Though QS has the capability to work on the external Metastock database, sometimes it is useful to maintain a QS database

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Show Comma Separators in Volume
When I plot the volume on a chart and show the plotted value on screen, there are no commas separating the numbers which makes the volume challenging to read sometimes. For example, the volume might be

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Data time-frame
In terms of data-source time-frame, what I understand is:

1. Intra-day and daily data should be in different files....

Data source Quandl
Hi,
I discovered a potentially great new data source, "Quandl", which I wanted to share with the community.
Is it well-known?...

Trade Orders Monitor
Noticed that while not connected to IB, I do not show anything when opening the Trade Orders Monitor. (it is empty)

After connecting to IB, I now see a bunch of orphaned orders that I can not cancel....

List of Drawing Items: Lines, etc..
Let's say I have drawn crap on charts for a while and many have become orphaned.

How can I access the "list" to manage and or delete ALL lines for ALL symbols....

Keltner Channel Indicator
I've been using the keltner channel indicator downloaded here but something is wrong with it. I've redesigned it (practice to learn QS as well!) and mine works.

My version was based on the bollinger...