AddLabel woes...

[netarchitech]

Given the following script, I am trying to simply color a label...Works fine if as long as the value of the RSI isn't 0...Problem is RSI can be 0 and the label unfortunately disappears...

declare lower;

input showRSI = yes;
input showRSIlabel = yes;

def na = double.nan;

def length2 = 14;
def averageType = AverageType.WILDERS;
def price2 = close;

def NetChgAvg2 = MovingAverage(averageType, price2 - price2[1], length2);
def TotChgAvg2 = MovingAverage(averageType, AbsValue(price2 - price2[1]), length2);
def ChgRatio2 = if TotChgAvg2 != 0 then NetChgAvg2 / TotChgAvg2 else 0;

plot RSI = if showRSI then 50 * (ChgRatio2 + 1) else na;
RSI.SetDefaultColor(CreateColor(0, 102, 204));
RSI.SetLineWeight(3);

def RSIlabel = 50 * (ChgRatio2 + 1);
AddLabel(if showRSILabel then RSILabel else na,"  " + "RSI: " + Round(RSIlabel,4) + "  ", if RSILabel < 1 then Color.GREEN else if RSILabel > 99 then Color.RED else CreateColor(0, 102, 204));

Any thoughts? Thanks in advance...

 

[majidg]

See the documentation for AddLabel() as you are missing the first parameter, yes... Not tested but the first parameter is required...

AddLabel(yes, if showRSILabel then RSILabel else na,"  " + "RSI: " + Round(RSIlabel,4) + "  ", if RSILabel < 1 then Color.GREEN else if RSILabel > 99 then Color.RED else CreateColor(0, 102, 204));

it gives an error, 3 params expected but 4 found while calling addlabel.

 

[netarchitech]

@Kashkian Thanks for your recent reply...That particular error has been resolved...

The final script is below for reference, until the 0 issue is resolved:

declare lower;

input showRSI = yes;
input showRSIlabel = yes;

def length2 = 14;
def averageType = AverageType.WILDERS;
def price2 = close;

def NetChgAvg2 = MovingAverage(averageType, price2 - price2[1], length2);
def TotChgAvg2 = MovingAverage(averageType, AbsValue(price2 - price2[1]), length2);
def ChgRatio2 = if TotChgAvg2 != 0 then NetChgAvg2 / TotChgAvg2 else 0;

plot RSI = if showRSI then 50 * (ChgRatio2 + 1) else double.nan;
RSI.SetDefaultColor(CreateColor(0, 102, 204));
RSI.SetLineWeight(3);

def RSIlabel = 50 * (ChgRatio2 + 1);
AddLabel(if RSILabel < 1 or RSILabel > 99 then Color.RED else CreateColor(0, 102, 204));

 

[rad14733]

Fixed... The first parameter simply needs to be yes or no, not Double.NaN which doesn't need to be assigned to a variable... Scripting languages are meant to be as comment-free readable as possible and assigning Double.NaN to a variable is redundant and wastes valuable CPU clock cycles... Us old bit-fiddlers attempt to make code efficient and readable... At any rate, the code below works...

declare lower;

input showRSI = yes;
input showRSIlabel = yes;

def length2 = 14;
def averageType = AverageType.WILDERS;
def price2 = close;

def NetChgAvg2 = MovingAverage(averageType, price2 - price2[1], length2);
def TotChgAvg2 = MovingAverage(averageType, AbsValue(price2 - price2[1]), length2);
def ChgRatio2 = if TotChgAvg2 != 0 then NetChgAvg2 / TotChgAvg2 else 0;

plot RSI = if showRSI then 50 * (ChgRatio2 + 1) else Double.NaN;
RSI.SetDefaultColor(CreateColor(0, 102, 204));
RSI.SetLineWeight(3);

def RSIlabel = 50 * (ChgRatio2 + 1);
AddLabel(showRSILabel,"  " + "RSI: " + Round(RSIlabel,4) + "  ", if RSILabel < 1 then Color.GREEN else if RSILabel > 99 then Color.RED else CreateColor(0, 102, 204));

 

[netarchitech]

@rad14733 Thanks for your time and effort in this endeavor...It is much appreciated! I'm happy to say the elusive "0" issue has been resolved with your code snippet as well

While I aspire to achieve "bit-fiddler" status one day, in the meantime, I will continue to value and hold in high estimation the code efficiency and readability of bit-fiddlers such as yourself...Thanks again...