Hiding labels for certain data points.

[PSCourtney]

I've got a weight loss chart that I'm extending the data line with faked data points with the last previous weight. However I dont want the label to appear for each repeated item. As it looks like the user has then entered it multiple times when they havent.

The circled entry is one the user has put in, the crossed ones are ones I've added to the chart to make it so that the line continues.

is there a way with the DataLabels formatter to hide specific labels with a flag?

I'm trying something like this:
Formatter = "function(value, { seriesIndex, dataPointIndex, w }) { " + "var dp = w.config.series[seriesIndex].data[dataPointIndex]; " + "console.log('DataPoint:', dp); " + "if(dp && dp.isFaked) { return ''; } " + "return value.toString(); }",