Hi there,
I'm struggling with a little problem where I need to use really dynamic expressions.
OK, let's start.
We've got investment in funds. A fund consists of a number of assets. Assets can have different countries, currencies or classes. And the assets have a market value pre-calculated in EUR.
| fund | asset | asset_country | asset_currency | asset_class | market value in EUR |
|---|
| fund_no1 | asset_no1 | DE | EUR | 1 | 1000 |
| fund_no1 | asset_no2 | DE | EUR | 1 | 1200 |
| fund_no1 | asset_no3 | NL | EUR | 2 | 900 |
| fund_no1 | asset_no4 | DE | EUR | 2 | 1000 |
| fund_no2 | asset_no5 | US | USD | 3 | 8000 |
| fund_no2 | asset_no6 | DE | EUR | 1 | 2000 |
| fund_no2 | asset_no7 | DE | EUR | 1 | 1000 |
| fund_no2 | asset_no8 | DE | EUR | 2 | 3000 |
| fund_no2 | asset_no9 | GB | GBP | 2 | 3500 |
| fund_no3 | asset_no10 | DE | EUR | 2 | 1000 |
| fund_no3 | asset_no11 | DE | EUR | 3 | 700 |
| fund_no3 | asset_no12 | US | USD | 3 | 2000 |
| fund_no3 | asset_no13 | NL | EUR | 1 | 5000 |
| fund_no3 | asset_no14 | DE | EUR | 1 | 4000 |
That's the "fact"-part of the story.
Now we can have one or more investmentstrategies per fund, depending on different rules, for example:
Investment in assets from NL
Investment in assets in USD
Investment in assets in Class3
| fund | strategy_name | rule |
|---|
| fund_no1 | Class3 | {$< asset_class = {3} >} |
| fund_no1 | NL | {$< asset_country = {NL} >} |
| fund_no2 | NL | {$< asset_country = {NL} >} |
| fund_no2 | USD | {$< asset_currency = {USD} >} |
| fund_no3 | Class3 | {$< asset_class = {3} >} |
| fund_no3 | NL | {$< asset_country = {NL} >} |
Now I want to have an overview which rules apply to my funds and what is the share of the assets belonging to this rules. This should look like this:
| fund | strategy_name | total per fund | investment according to strategy | share for strategy |
| fund_no1 | Class3 | 4100 | 0 | 0% |
| fund_no1 | NL | 4100 | 900 | 22% |
| fund_no2 | NL | 17500 | 0 | 0% |
| fund_no2 | USD | 17500 | 8000 | 46% |
| fund_no3 | Class3 | 12700 | 2700 | 21% |
| fund_no3 | NL | 12700 | 5000 | 39% |
But how do I get QV to apply my different rules to the corresponding rows in my chart?
Attached is a simplified example with inline-data. Idea was to store my rules as complete "Set Expression"-statement in my strategies table and link this rule dynamically...
Does anyone have a solution for this problem?
regards,
Edgar
