Coding questions

[CarlosTrades]

I’m Not that fluent in thinkscript and I’m wondering how I would code for a arrow signal to show after a ema crossover and the second candle close in that direction

 

[halcyonguy]

I’m Not that fluent in thinkscript and I’m wondering how I would code for a arrow signal to show after a ema crossover and the second candle close in that direction

this will find ema crossovers
it determines if the bar at a crossover is up or down.
then counts those same bars (up or down) and plots an arrow on the bar that matches the count (default 2)
so the type of cross doesn't matter. it matches a future bar to the same bar type on a crossover.

# arrow_after_emax

#https://usethinkscript.com/threads/coding-questions.16368/
# code for a arrow signal, to show after a ema crossover, and the second candle close in that direction

def na = double.nan;
def bn = barnumber();

def up = close > open;
def dwn = close < open;
input count_after_cross = 2;

def price = close;
input ma1_len = 20;
input ma1_type =  AverageType.EXPONENTIAL;
def ma1 = MovingAverage(ma1_type, price, ma1_len);

input ma2_len = 50;
input ma2_type =  AverageType.EXPONENTIAL;
def ma2 = Movingaverage(ma2_type, price, ma2_len);

def xup = ma1 crosses above ma2;
def xdwn = ma1 crosses below ma2;

input show_lines = yes;
plot z1 = if show_lines then ma1 else na;
z1.setdefaultcolor(getcolor(1));
#z1.setlineweight(1);
z1.hidebubble();

plot z2 = if show_lines then ma2 else na;
z2.setdefaultcolor(getcolor(2));
#z2.setlineweight(1);
z2.hidebubble();

# cross up , up or down bar
def xupdir = if bn == 1 then 0
 else if xdwn then 0
 else if xup and up then 1
 else if xup and dwn then -1
 else if xupdir[1] > 0 and up then xupdir[1] + 1
 else if xupdir[1] < 0 and dwn then xupdir[1] - 1
 else xupdir[1];

# cross down , up or down bar
def xdwndir = if bn == 1 then 0
 else if xdwn and up then 1
 else if xdwn and dwn then -1
 else if xdwndir[1] > 0 and up then xdwndir[1] + 1
 else if xdwndir[1] < 0 and dwn then xdwndir[1] - 1
 else xdwndir[1];


plot zupup = if count_after_cross == xupdir and count_after_cross != xupdir[1] then low*0.999 else na;
plot zupdwn = if count_after_cross == -xupdir and count_after_cross != -xupdir[1] then high*1.001 else na;

zupup.SetPaintingStrategy(PaintingStrategy.ARROW_UP);
zupup.SetDefaultColor(Color.green);
zupup.setlineweight(3);
zupup.hidebubble();

zupdwn.SetPaintingStrategy(PaintingStrategy.ARROW_DOWN);
zupdwn.SetDefaultColor(Color.red);
zupdwn.setlineweight(3);
zupdwn.hidebubble();


input show_cross_wedges = yes;

plot zxup1 = if show_cross_wedges and xup then 1 else 0;
zxup1.SetPaintingStrategy(PaintingStrategy.BOOLEAN_WEDGE_up);
zxup1.SetDefaultColor(Color.light_gray);
zxup1.setlineweight(2);
zxup1.hidebubble();
plot zxup2 = if show_cross_wedges and xup then 1 else 0;
zxup2.SetPaintingStrategy(PaintingStrategy.BOOLEAN_WEDGE_down);
zxup2.SetDefaultColor(Color.light_gray);
zxup2.setlineweight(2);
zxup2.hidebubble();


plot zxdwn1 = if show_cross_wedges and xdwn then 1 else 0;
zxdwn1.SetPaintingStrategy(PaintingStrategy.BOOLEAN_WEDGE_up);
zxdwn1.SetDefaultColor(Color.light_gray);
zxdwn1.setlineweight(2);
zxdwn1.hidebubble();
plot zxdwn2 = if show_cross_wedges and xdwn then 1 else 0;
zxdwn2.SetPaintingStrategy(PaintingStrategy.BOOLEAN_WEDGE_DOWN);
zxdwn2.SetDefaultColor(Color.light_gray);
zxdwn2.setlineweight(2);
zxdwn2.hidebubble();


#------------------------
addchartbubble(0, low,
xupdir
, color.yellow, no);
#

PFE 15min
match set to 3
wedges on the crossover bar
on the crossover, the bar is up, so look at future up bars
a green arrow on the 3rd up bar since crossover