Statistics
In this step you can define custom statistical features for your regions or objects. Note that this step is not available for 3D Image Analysis. When an image analysis using custom statistical features is successfully performed, the resulting values are available in the heatmap graph when the base-node of the classes tree is selected and if well plate or sample carrier information is present.
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Parameter |
Description |
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Interactive |
Activated: The custom feature definition can be changed interactively while the analysis setting is run with Start Interactive Analysis. |
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Class List |
Selects the class for which you want to define the custom statistical feature(s). |
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Define Custom Feature |
Opens the editor to define a custom statistic feature, see Creating Custom Statistical Features. |
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Custom Statistic Feature List |
Displays the created custom statistic features. |
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Name |
Displays the name of the custom statistic feature. |
Custom Statistic Feature Editor
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Parameter |
Description |
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Custom Features |
Displays a list of the created custom statistical features. |
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Name |
Displays the name of the created custom statistical feature. |
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Adds a new custom feature that can be defined with the options on the right side. |
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Deletes the currently selected feature. |
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Define Custom Feature |
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Name |
Defines the name of the feature. |
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Unit |
Specifies the unit of the feature as free text input. This input is optional. |
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Define Operands |
Displays and defines the operands used for the calculation of the custom statistical feature. |
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Operand |
Displays the name of the operand. |
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Class |
Selects the class that is used for the definition of the operand. |
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Feature |
Displays all available measurement features for the selected class and selects which measurement feature (if any) should be used for the definition of the current operand. If you activate the checkbox behind the selection dropdown, the selected feature is also set visible in the result table. |
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Statistical Operation |
Selects the statistical operation used for the current operand, e.g. MEAN, MIN, MAX, SUM and COUNT. |
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Expression |
Displays the expression of the Operand defined by Statistical Operation and the Class (and class feature) selection. |
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Adds a new operand to the list. |
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Deletes the currently selected operand. |
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Define Custom Expression |
Defines the mathematical calculation of the feature, using the Operands and mathematical operators, e.g. 100*(a/b+Math.Pow(c,2)). |
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+ |
Adds the mathematical operator for summation to the calculation. |
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- |
Adds the mathematical operator for subtraction to the calculation. |
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* |
Adds the mathematical operator for multiplication to the calculation. |
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/ |
Adds the mathematical operator for division to the calculation. |
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Pow |
Adds the mathematical operator to calculate the power of a certain base value. Note that this operator requires two input values (the base and power value) separated by a comma, e.g. Math.Pow(2,3), which corresponds to 23. |
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Sqrt |
Adds the mathematical operator to calculate the square root of a value. |
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Abs |
Adds the mathematical operator to return the absolute number, i.e. non negative values. |
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Verify Expression |
Checks the syntax of the Expression. |
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OK |
Adds the defined custom features and closes the dialog. |
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Cancel |
Closes the dialog without saving the changes. |
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