# One line moving average crossover

#### Alkkkz

##### New member

is there a moving average line that changes color when MA 9 crosses over 21? I need one line that changes color. Not the traditional two lines.

So you have two lines, 9 MA and 21 MA, on your chart. Which one needs to change color when there is a crossover?

Here is a lower study version:

Code:
``````declare lower;

input price = close;
input length1 = 9;
input length2 = 21;
input displace = 0;

def SMA1 = Average(price[-displace], length1);
def SMA2 = Average(price[-displace], length2);

def bull_crossover = SMA1 crosses above SMA2;
def bear_crossover = SMA1 crosses below SMA2;

plot Data = 1;
Data.AssignValueColor(if bull_crossover then color.green else if bear_crossover then color.red else color.gray);``````

Last edited:
I think this is what is being requested.

Ruby:
``````# plots the second SMA and colors it based on whether the first is above or below
input length1 = 9;
input length2 = 21;

def m1 = SimpleMovingAvg(close, length1);
def m2 = SimpleMovingAvg(close, length2);

plot MA = m2;
MA.AssignValueColor(if m1 > m2 then Color.GREEN else if m1 < m2 then Color.RED else Color.YELLOW);``````

@Slippage Yes sir. Thank you very much! This is exactly what I was looking for.

Know this thread is old but is there anyway to scan for when the shorter MA crosses above the longer one (9 over 21)?

I tried in my scanner by selecting this study in the study filter but couldn’t create it that way.

Know this thread is old but is there anyway to scan for when the shorter MA crosses above the longer one (9 over 21)?

I tried in my scanner by selecting this study in the study filter but couldn’t create it that way.
Scan Code ONLY does not plot on a chart:
# plots the second SMA and colors it based on whether the first is above or below
input length1 = 9;
input length2 = 21;

def m1 = SimpleMovingAvg(close, length1);
def m2 = SimpleMovingAvg(close, length2);

plot MA = m1[1] < m2[1] and m1 > m2 ;
MA.hide();

87k+ Posts
183 Online

## The Market Trading Game Changer

Join 2,500+ subscribers inside the useThinkScript VIP Membership Club
• Exclusive indicators
• Proven strategies & setups
• Private Discord community
• Exclusive members-only content
• 1 full year of unlimited support

What is useThinkScript?

useThinkScript is the #1 community of stock market investors using indicators and other tools to power their trading strategies. Traders of all skill levels use our forums to learn about scripting and indicators, help each other, and discover new ways to gain an edge in the markets.

How do I get started?

We get it. Our forum can be intimidating, if not overwhelming. With thousands of topics, tens of thousands of posts, our community has created an incredibly deep knowledge base for stock traders. No one can ever exhaust every resource provided on our site.

If you are new, or just looking for guidance, here are some helpful links to get you started.

What are the benefits of VIP Membership?