I am looking to get an alert if a 9 day SMA crosses over the price


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I have no real idea how to do this other than going to the thinkscript editor , that is about it

so maybe it is "Price > SMA ,9 = alert or something like that

If the current PRICE is greater than the 9 day SMA then condition is ALERT ,

how can i enter this in the "thinkscript editor" to get alerted when a price crossess the 9 day sma ?

thanks !!!!!!!!!!
Here you go, alerts when price crosses above 9 SMA and also when it crosses below 9 SMA.

# TD Ameritrade IP Company, Inc. (c) 2017-2020

input price = close;
input length = 9;
input displace = 0;
input showBreakoutSignals = yes;

plot SMA = Average(price[-displace], length);
plot UpSignal = price crosses above SMA;
plot DownSignal = price crosses below SMA;



# Alerts
Alert(UpSignal, " ", Alert.Bar, Sound.Chimes);
Alert(DownSignal, " ", Alert.Bar, Sound.Bell);

I have been trying to get this script to work. I want the daily sma to display green if price is above and red when price is below. Is it possible to add the the 2 daily sma and have it display green when above the 9 daily sma and red when below?

input show_label = yes;
input show_bubble = no;

def period_Type = AggregationPeriod.DAY;

input price = FundamentalType.CLOSE;
input aggregationPeriod = AggregationPeriod.DAY;
input length = 9;
input displace = 0;
input showOnlyLastPeriod = no;

#def begin = open(period = period_Type)[1];
#def end = close(period = period_Type);
#def NetChg = open - begin;
#def PctChg = (open / begin) - 1;
#def DayVolume =  volume(period = "DAY");

AddLabel("dailysma:" + price, if close > 9sma then Color.GREEN else Color.dark_ORANGE);

plot sma = ninesma;

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