In Robot Framework plugin. 'SKIP' are not taken under statistical consideration:

Since this test has been skipped and not run. I had expected the pass rate to be: 33% in the above example.

I understand why it's like that right now and I read your statement about the 'SKIP' situation. but in my case, it's essential to be like I mentioned.

Is it possible to let the user decide whether to insert it into the pass rate or not?

I suggest adding a flag for that:

                    step(
                            [
                                    $class              : 'RobotPublisher',
                                    outputPath          : artifacts_src,
                                    outputFileName      : unite_log + "output.xml",
                                    reportFileName      : unite_log + 'report.html',
                                    logFileName         : unite_log + 'log.html',
                                    passThreshold       : env.use_pass_threshold,
                                    unstableThreshold   : env.use_unstable_threshold,
                                    disableArchiveOutput: false,
                                    otherFiles          : other_files,

                                    considreSkipUnderPassRate: true
                            ]
                    )

which:  considreSkiPUnderPassRate will be the new flag.

I look inside the code: https://github.com/jenkinsci/robot-plugin/blob/master/src/main/java/hudson/plugins/robot/model/RobotResult.java

And the change will be very small.

In case the flag is true. change the variable in line 203 form: 'total = getOverallTotal() - getOverallSkipped()' to 'total = getOverallTotal()' 

Many thanks in advance!