Arrow direction not displaying correctly?

[mbarcala]

I have a problem with the Arrow_Down, it doesn't display at all and I can't see what is wrong, can someone help to see my mistake?

def trendUp = mSig[-1] crosses above mSig and mSig > trendL;
def trendDn = mSig[-1] crosses below mSig and mSig < -trendL;

plot revArrowUp = if trendUp > trendL then mSig else Double.NaN;
revArrowUp.SetPaintingStrategy(PaintingStrategy.ARROW_UP);
revArrowUp.SetDefaultColor(Color.GREEN);
revArrowUp.SetLineWeight(1);

plot revArrowDn = if trendDn < -trendL then mSig else Double.NaN;
revArrowDn.SetPaintingStrategy(PaintingStrategy.ARROW_DOWN);
revArrowDn.SetDefaultColor(Color.RED);
revArrowDn.SetLineWeight(1);

 

[Pensar]

@mbarcala Your code looks fine in itself - I think maybe the problem is in the criteria used to generate the signal. When you say mSig < -trendL and trendDn < -trendL, do mSig or trendDn ever turn negative? If no, then since positive values will never be less than negative values, the arrow criteria is never true. Try plotting the outputs of mSig, trendL, and trendDn as test labels and check what the outputs are.

 

[mbarcala]

@mbarcala Your code looks fine in itself - I think maybe the problem is in the criteria used to generate the signal. When you say mSig < -trendL and trendDn < -trendL, do mSig or trendDn ever turn negative? If no, then since positive values will never be less than negative values, the arrow criteria is never true. Try plotting the outputs of mSig, trendL, and trendDn as test labels and check what the outputs are.

You guys are genius, lol. what I was thinking 2 negative turn positive, that it's my error!

Solution for my error

plot revArrowUp = if mSig[-1] crosses above mSig and mSig > trendL then mSig else Double.NaN;
revArrowUp.SetPaintingStrategy(PaintingStrategy.ARROW_UP);
revArrowUp.SetDefaultColor(Color.GREEN);
revArrowUp.SetLineWeight(1);

plot revArrowDn = if mSig[-1] crosses below mSig and mSig < -trendL then mSig else Double.NaN;
revArrowDn.SetPaintingStrategy(PaintingStrategy.ARROW_DOWN);
revArrowDn.SetDefaultColor(Color.RED);
revArrowDn.SetLineWeight(1);

I wish I could share this, which its cool and it could help new traders to trade all the time positive, especially for does on small accounts