how to use built-in macro functions in a Plugin

[Ben Liu-3]

I want to use some built-in macro functions in a plugin and return some results from the macro back to the plugin.
let's say, the built-in function is:
getStatistics(area, mean, min, max, std, histogram)
I need to return the value of min and max back to a plugin.
Can someone tell me how to do that?

Thanks.
Ben


       
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