This page contains answers to common questions handled by our support staff, along with some tips and tricks that we have found useful and presented here as questions.
Note: In these answers we will follow a few shorthand conventions for describing user-interface procedures. Key combinations will be presented like this: Ctrl+Alt+Delete, which means that you should press and hold down the Control key, the Alt key, and the Delete key at the same time. Menu selections will be presented like this: File->Open, which means that you should open the File menu, and then make the Open selection.
You can open any number of tables using the Open Wizard, then you need to define primary and foreign keys for each table. The Open Wizard will help you do that also.
For example, suppose that you have Customer and Order tables. The common field in the two tables is CustomerNumber. CustomerNumber should be the primary key in Customer Table and should be defined as a foreign key in the Order table.
To define primary and foreign keys, use Table->Link, then follow instructions.
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Yes. The Open Wizard allows you to define criteria, select columns, and define a scope.
For example, you can read using a criterion like year = 97, you can also read a random sample of your data say 20%, and you can select which columns you would like to read.
To read part of your table, use Table->Open Wizard, then follow the instructions in the Open Wizard.
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Yes. You can export any view that you create on your data.
To export a view, use View->Export.
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You can search for a particular record by moving to the desired column and pressing the find button
. The current cell will be positioned on the first row that has required value. You can find next and previous.
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You can get some trivial facts when some of your columns contain obvious dependencies. For example, if you have a State, City, ZIP, and Country columns in your table, the engine will report facts like
All City = NYC has State = NY
You can avoid these facts by 2 ways:
- 1. Remove all these columns from the view using the setup button
. The engine only works on columns in the view.
- 2. If you need to find facts involving these columns but not among them, for example facts between Profit and Sate and between Profit and City but not between State and City, then you need to specify Dependent Column Groups that contain State and City. The engine will not report any facts among each group.
To specify dependent columns, press the fact engine button, then press Dependency button and follow instructions.
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Press the fact engine button
, then select column X from the "If Condition" list and Column Y from the "Then Conclusion" list.
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If you have a group of columns say ProductType, ProductSize, and ProductColor and another group like Profit, QtySold, and StockLevel, and you would like to find any correlation between the two groups but not among each group. In other words, you are interested in facts between ProductType and Profit but not between ProductType and ProductColor . Follow these 2 steps:
- Create a view with only columns in the two groups, then remove all other columns. Use the setup button
.to deselect all other columns.
- Press the fact engine button
, then use the Dependency button to define the two groups, this way the engine will not report facts among each group.
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A fact that contain one condition is a Level 1 fact while a fact that 2 conditions is a Level 2 fact. For example
Level 1 fact: All Products where Color = Black have Profit = High
Level 2 fact: All Products where Color = Black and Size = Large have Profit = High..
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Yes. However, you need to partition these column into ranges or levels first. To do that we create Range Columns using the virtual column button
then follow instructions.
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Yes, You can create a Filter Column using this button
on that value that you want to eliminate from the view. Move to any row that contain false and press the filter button
.
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Yes. Press the right mouse button while in the Totals pane and press Select Calculations.
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