title: Calculate if an indicator's value has risen over x periods
body: <p>I am looking for a function or way to calculate if a value from an indicator has risen over x periods. I'm aware of the rising() and falling() built in functions, but when plugging in an indicator it doesn't seem to be working. It appears those functions are only for price. Are there any resources that may help me figure this out? For an example, let's say I want to see if the ema has been steadily rising for the last 10 periods.</p>