Bar charts are very widely used charting method to study the relation between two dimensions in form of bars. The height of the bar in the graph represents the value of one dimension. The number of bars represent the sequence of values or grouped values of another dimension.
Let us consider the following input data, which represents the sales figure of different product lines and product categories.
Product_Line,Product_category,Value Sporting Goods,Outdoor Recreation,5642 Food, Beverages & Tobacco,2514 Apparel & Accessories,Clothing,2365 Apparel & Accessories,Costumes & Accessories,4487 Sporting Goods,Athletics,812 Health & Beauty,Personal Care,6912 Arts & Entertainment,Hobbies & Creative Arts,5201 Arts & Entertainment,Paintings,8451 Arts & Entertainment,Musical Instruments,1245 Hardware,Tool Accessories,456 Home & Garden,Bathroom Accessories,241 Food,Drinks,1247 Home & Garden,Lawn & Garden,5462 Office Supplies,Presentation Supplies,577 Hardware,Blocks,548 Baby & Toddler,Diapering,1247 Baby & Toddler,Toys,257 Home & Garden,Pipes,1241 Office Supplies,Display Board,2177
The above data is loaded to the QlikView memory by using the script editor. Open the Script editor from the File menu or press Control+E. Choose the "Table Files" option form the "Data from Files" tab and browse for the file containing the above data. Edit the load script to add the following code. Click "OK" and press "Control+R" to load the data into the QlikView's memory.
LOAD Product_Line, Product_category, Value FROM [C:\Qlikview\data\product_sales.csv] (txt, codepage is 1252, embedded labels, delimiter is ',', msq);
For the above data, let us create a Table Box, which will show the data in a tabular form. Go to the menu Layout → New Sheet Object → Table Box and choose the column as shown below.
Click Apply and then OK to finish creating the Table box. The below given screen appears.
To start creating a bar chart, we will use the quick chart wizard. On clicking it, the following screen appears which prompts for selecting the chart type. Choose bar Chart and click Next.
Choose Product Line as the First Dimension.
The chart expression is used to apply the functions like Sum, Average, or Count on the fields with numeric values. We will apply the Sum function on the filed named Value. Click Next.
The Chart format defines the style and orientation of the chart. We choose the first option in each category. Click Next.
The Bar chart appears as shown below. It shows the height of the field value for different product lines.