松脚本功能说明

Question

I'm new to pine script and need community help to understand below function, for example passing function returned value again to function as a series[float] ,

momentum(seria, length) =>
    mom = seria - seria[length]
    mom

mom0 = momentum(close, 12)
mom1 = momentum( mom0, 1)

1. mom0 is float or series[float] ?
2. If mom0 is series[float] how? and what kind of data it series[float] contains?

Thanks

Answer 1

mom0 is of type series float . Once a series , always a series .

mom0 is the momentum based on close price. mom1 is the same but it uses mom0 as its source.

mom1 is basically mom0 - mom0[1] because length = 1 .