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QlikView - Set Analysis
  • 时间:2024-11-03

QpkView - Set Analysis


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QpkView s Set Analysis feature is used to segregate the data in different sheet objects into many sets and keeps the values unchanged in some of them. In simpler terms, it creates an option to not associate some sheet objects with others while the default behavior is all sheet objects get associated with each other. This helps in filtering the data in one sheet object and seeing the corresponding result in others, while the sheet object chosen as a different set displays values as per its own filters.

Input Data

Let us consider the following input data, which represents the sales figure of different product pnes and product categories.

Product_Line,Product_category,Month,Value
Arts & Entertainment,Hobbies & Creative Arts,Jan,5201
Arts & Entertainment,Paintings,Feb,8451
Arts & Entertainment,Musical Instruments,Jan,1245
Baby & Toddler,Diapering,Mar,1247
Baby & Toddler,Toys,Dec,257
Apparel & Accessories,Clothing,Feb,574
Apparel & Accessories,Costumes & Accessories,Apr,1204
Arts & Entertainment,Musical Instruments,Apr,3625
Baby & Toddler,Diapering,Apr,1281
Apparel & Accessories,Clothing,Jul,2594
Arts & Entertainment,Paintings,Sep,6531
Baby & Toddler,Toys,May,7421
Apparel & Accessories,Clothing,Aug,2541
Arts & Entertainment,Paintings,Oct,2658
Arts & Entertainment,Musical Instruments,Mar,1185
Baby & Toddler,Diapering,Jun,1209

Load Script

The above data is loaded to QpkView memory by using the script editor. Open the Script editor from the File menu or press Control+E. Choose the "Table Files" option from the "Data from Files" tab and browse for the file containing the above data. A screen appears as shown below.

1_set_ana_load_script

Create Table Box

Choose all the fields available to create a table box using the menu option Layout → New Sheet Objects → Table Box and a pst box containing the month’s field using the menu option Layout → New Sheet Objects → List Box. Also, create a straight table chart showing the total sales under each product category.

4_set_ana_sales_table

Data Association

Now we can observe the association between these three sheet objects by selecting some values in one of them. Let us select the month Apr and Jan from the Month pst Box. We can see the change in values in the Table Box and chart showing the related values.

5_set_ana_association

Clone Object

Next, we clone the sales sum chart to produce a new set of data not associated with other sheet objects. Right cpck on the chart Sales Sum and cpck on the option Clone as shown below. Another copy of the same chart appears in the QpkView document.

6_set_ana_clone

Set Expression

Next, we choose the second copy of the chart Sales Sum and right cpck it to get the chart properties. We create an expression called Sales values writing the formula under the Definition tab as shown below.

7_set_ana_setexpression

Applying Set Analysis

On completing the above given steps, we find that when we select the month June we get the associated values in the Table Box and Sales Sum chart. However, the April sales does not change as it is based on the data from the set expression.

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