1/5/2024 0 Comments Knime string replacer nullReplace on Text on the Marks card with either or depending on desired end result.Create a calculated field with a name like "Filtered Amount or last value (opt 2)" with a calculation similar to the following:.The IF statement takes the place of the filter. The ZN() function will replace any NULL values with zero.In this example, the calculated field is named "Filtered Amount or zero (opt 2)" Right-click in the data pane and select Show Parameter Control.In this example I will call it "Date Parameter" In the Create Parameter dialog, do the following and click OK:.Click the down arrow next to Dimensions in the data pane and select Create Parameter….This option will replace NULL data and data that has been filtered out of the view with zeros. To view the steps showed in the video below, please expand the above section. (Optional) Customize the values in the view by right-clicking the value and formatting it as desired.Replace on Text on the Marks card with either or depending on the desired end result.See Transform Values with Table Calculations Depending on how the view is built, it may be necessary to compute PREVIOUS_VALUE() differently.IFNULL(., PREVIOUS_VALUE(0)) will replace any NULL values with the last value of this calculation, which creates a running last value.Create a calculated field with a name like " Replace empty cells with last value (opt 1) " with a calculation similar to the following:.In the formula field, create a calculation similar to the following:.In this example, the calculated field is named "Replace empty cells with zero (opt 1)" In the Calculated Field dialog box that opens, do the following, and then click OK:.Select Analysis > Create Calculated Field.
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