PiscesLogoSmallerStill Data relativisations

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The values in each row or column of the working data can be transformed so that their magnitudes are expressed relative to a variety of statistical measures. On the Working Data page select Relative in the Type of Adjustment panel.

 

datarelative

 

 

The possible relative measures available within ECOM are given below. In each case where by row or column is not stated you can select which will be used. Select the adjustment to be made and click on Submit to make the change.

 

By Maximum value - For each row or column the maximum value is found and all values are divided by the maximum.

By Mean - For each row or column the mean value is found and all values are subtracted from the mean.

By StdD - For each row or column the standard deviation value is found and all values are divided by the standard deviation.

Binary using Mean - For each row or column the mean is found and all values above the mean are given the value 1 and all values below the mean zero.

Binary using Median - For each row or column the median is found and all values above the median are given the value 1 and all values below the mean zero.

General by Row - This allows you to define a general relativisation to be applied to each row. Each value is divided by

Eqn1

where i is the column and a is a user selected parameter (the default value is 1) entered into the Enter value box displayed in the lower panel.

 

General by Column - This allows you to define a general relativisation to be applied to each column. Each value is divided by

Eqn2

where j is the row and a is a user selected parameter (the default value is 1) entered into the Enter value box displayed in the lower panel.