Candles colored in relation to the 20sma

I see that we have a two part question. I’ll begin by addressing part 1. In order to dynamically adjust the color of the candles we use a function called AssignPriceColor(). You can read more about that here: http://tlc.thinkorswim.com/center/reference/thinkScript/Functions/Look---Feel/AssignPriceColor.html

The function takes a single argument, Color. We will use an if/then statement to set the color based on the position of the close in relation to the simple moving average.

plot sma1 = Average(close, 20);
AssignPriceColor(if close > sma1 then Color.GREEN else Color.RED);

That’s it. Nothing more is needed.

Now on to the second part of the question. The request is for an alert that will trigger whenever the color changes from one color to the other. In this case we will add a function called Alert(). You can read more about that here: http://tlc.thinkorswim.com/center/reference/thinkScript/Functions/Others/Alert.html

Before we add this, we’ll need to define the conditions. We’ll do this using a statement that will check if the previous bar is below the sma, while the current bar is above it. Then we’ll do the reverse to capture the other change. Then we’ll use these two conditions as the trigger for each of two alerts. So we’ll be adding these four additional lines to the two original lines shown above.

def crossAbove = close[1] < sma1[1] and close > sma1;
def crossBelow = close[1] > sma1[1] and close < sma1;
Alert(crossAbove, "Close Crossed Above SMA", Alert.BAR, Sound.RING);
Alert(crossBelow, "Close Crossed Below SMA", Alert.BAR, Sound.RING);

And we’re done. Screenshot below shows the results. Be sure to up-vote any answers that best solve your question!

In response to the second question about adding alerts based on two conditions.

It is always easiest to begin with the full list of specifications and write the code using all the facts. The reason is that very often the additional specifications cause us to disregard lines of code that were previously written. You cannot simply combine two sets of conditions without regard for how they interact on the chart.

Case in point. For your set of rules, you did not specify if the close above the SMA should always occur before the color change in the SMA. Or perhaps the SMA should change color first, followed by the close above the SMA. So you can’t just take a cross of the SMA and use that in combination with the change in color of the SMA. You have to take them both into consideration and write the code so that both events are properly accounted for. Unless you only want one of them accounted for.

This code provides for both events occurring.

plot sma1 = Average(close, 20);
AssignPriceColor(if close > sma1 then Color.GREEN else Color.RED);
#def crossAbove = close[1] < sma1[1] and close > sma1;
#def crossBelow = close[1] > sma1[1] and close < sma1; #Alert(crossAbove, "Close Crossed Above SMA", Alert.BAR, Sound.Chimes); #Alert(crossBelow, "Close Crossed Below SMA", Alert.BAR, Sound.ding); sma1.AssignValueColor(if sma1 > sma1[1] then Color.CYAN else Color.DARK_ORANGE);
def closeAboveSMA = close > sma1;
def closeBelowSMA = close < sma1; def smaUP = sma1 > sma1[1];
def smaDOWN = sma1 < sma1[1];
def alertUP = (smaUP and closeAboveSMA and closeBelowSMA[1]) or (closeAboveSMA and smaUP and smaDOWN[1]);
def alertDOWN = (smaDOWN and closeBelowSMA and closeAboveSMA[1]) or (closeBelowSMA and smaDOWN and smaUP[1]);
Alert(alertUP, "Up Trend", Alert.BAR, Sound.CHIMES);
Alert(alertDOWN, "Down Trend", Alert.BAR, Sound.DING);

Nice answer Pete !
The other part of this strategy I’m trying to build would be to define when the 20sma moving average is angled uptrend or angled downtrend.

Like this image below. The problem is that I tried to config this on TOS and gave this problem “no such variable: ave”

Do you see where I’m going with this? After that, the final scanner will alert me when the moving average is directed upwards and with candles above the 20sma    FOR LONGS
And for the short side, The final scanner will alert me when the moving average is directed downwards and with candles below the 20sma.       All in the 5min chart

Mr Hahn, I had to log in through twitter because through facebook not working out

Im already using this study where the bars are colored in GREEN above the 20sma, and colored in RED below the 20sma.

and also This other script, when the 20sma is angled uptrend the line becomes BLUE and when angled downtrend the line becomes ORANGE

so as i told you before, I’m trying to finish this study To combine these two features, I’ve even made this image below so you can better understand what we’re looking for here

CONDITION 1 [plus 1]= will alert me when the moving average is directed upwards and with candles above the 20sma    FOR LONGS (green candles and the sma colored in blue)

CONDITION 0 [zero] = (green candle and 20sma in orange) OR (red candle and 20sma in blue)
CONDITION -1 [minus 1]= for the short side, will alert me when the moving average is directed downwards and with candles below the 20sma.      (red candles and the 20sma colored in orange )

exactly
The only problem now is that it must remain in condition +1, during the period that condition +1 is being respected

and remain in condition -1, during the period that condition -1 is being respected

See this screenshot below

Hey Pete,  See this image below

For this final tweak on the code,

FOR THE LONG SIDE, the color of the line on that lower subgraph should turn green every time if forms At least 3 candles in [condition 1], and will lose the green color As soon as it loses [condition 1]

AND FOR THE SHORT SIDE, the color of the line on that lower subgraph should turn magenta every time if forms At least 3 candles in [condition -1], and will lose the magenta color As soon as it loses [condition -1]

Also, It Should indicate in the chart Just above the candle, the price of entry and exit for the period the line was green, and the price of entry and exit the period when that line was magenta

def sma1 = Average(close, 20);

plot signal = if close > sma1 and sma1 > sma1[1] then 1 else if close < sma1 and sma1 < sma1[1] then -1 else 0;

For you who that have great experience with thinkorswim, would quickly solve this with some command lines.
But for us who are learning, is not that simple,
so I thank you again for the cooperation

Trade safe !

Cheers!