Default parameters used in Event detection function

[loganylchen]

Hi there,

I have some questions about the event detection, which I knew was adopted from nanopolish/scrappie. I found the default parameters were different between RNA and DNA event detection.

static detector_param const event_detection_defaults = {.window_length1 = 3,
                                                        .window_length2 = 6,
                                                        .threshold1 = 1.4f,
                                                        .threshold2 = 9.0f,
                                                        .peak_height = 0.2f};


static detector_param const event_detection_rna = {.window_length1 = 7,
                                                   .window_length2 = 14,
                                                   .threshold1 = 2.5f,
                                                   .threshold2 = 9.0f,
                                                   .peak_height = 1.0f};

I could quite understand the reasons: 1. RNA molecules translocate much slower than the DNA (larger window length), 2. RNA signals were more fluctuation (higher threshold and peak_height). Correct me if I were wrong.

I think the settings were quite reasonable. I raised the issue here just to ask for a feature in the "f5c eventalign" function, which I could specify these default parameters. I knew I could fork the repo and modify the default numbers and then compile to binary f5c to do the test, but I think exposing these numbers to the command line args will help me a lot, reducing manual works.

Best, Logan