PM.PRECEDENCE.MATRIX

You are here:

AXCEL.PM.PRECEDENCE.MATRIX function

This function is part of Process Mining (PM) functions in Axcel and generates a precedence diagram. A precedence diagrams is a two-dimensional matrix showing the flows between activities. It can be contain different type values, by adjusting the type argument.

Syntax

AXCEL.PM.PRECEDENCE.MATRIX(data, [type], [plot])


The AXCEL.PM.PRECEDENCE.MATRIX function syntax has the following arguments:

data Required. This is a table of events. Input data could be provided in 4,5, and 6 column formats.

4-column data:

Data should be structured in the order of record, process, resource, and timestamp as follows:

record process resource timestamp
record 1 process xresource y 2012-01-02T12:23:00.000+01:00

In this format, Axcel assumes that all processes are “complete” and every event is an individual process.

5-column data:

Data should be structured in the order of record, process, resource, start_time and end_time as follows:

record process resource start_time end_time
record 1 process xresource y 2012-01-02T12:23:00.000+01:00 2012-01-02T12:46:00.000+01:00

6-column data:

Data should be structured in the order of record, process, resource, timestamp, status and handling_id as follows:

record process resource timestamp status handling_id
record 1 process xresource y 2012-01-02T12:23:00.000+01:00 start1
record 1process xresource y2012-01-02T12:46:00.000+01:00 complete 1

type Optional. By default Axcel uses absolute type but user can define “absolute”, “relative”, “relative-antecedent”, “relative-consequent”, or “relative-case”. Here is the definition of each:

  • Absolute frequency of flows
  • Relative frequency of flows
  • Relative frequency of flows, for each antecedent
    • I.e. given antecedent A, it is followed x% of the time by Consequent B
  • Relative frequency of flows, for each consequent
    • I.e. given consequent B, it is preceded x% of the time by Antecedent A

plot Optional. If set TRUE, Axcel generates the visualization of the outcome and shows in task pane. Default is FALSE.


Here is an example based on patient-hospital operation data. You can pull this data by executing AXCEL.DATASETS(“hospital-process-mining”). Considering you pulled your data in cell A1#, you need to run:

=AXCEL.PM.PRECEDENCE.MATRIX(A1#, ,TRUE)

After execution, a table of precedence matrix is produced in Excel, the details of the event is shown in the console and a plot is also generated in the task pane since we set plot TRUE in the function: