How to Display Variables on TradingView Charts using Text

Описание: Learn how to effectively show variables like SMI and EMA signals on TradingView charts using Pine Script with this detailed guide.
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This video is based on the question https://stackoverflow.com/q/66385695/ asked by the user 'gr68' ( https://stackoverflow.com/u/1806799/ ) and on the answer https://stackoverflow.com/a/66386063/ provided by the user 'AnyDozer' ( https://stackoverflow.com/u/14860394/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Display Variables on TradingView Charts using Text

TradingView is a powerful tool used by traders to analyze price movements and market trends. However, while many users know how to visualize price actions with charts, some struggle with outputting specific variable values directly onto those charts. This guide addresses a common issue faced by users—how to display variables in TradingView charts using Pine Script, particularly when dealing with SMI and EMA signals.

The Problem

Many users encounter difficulties when attempting to represent variable values, such as the SMIsignal and emasignal, directly over the candles on a TradingView chart. The common approach of using the label.new function can return errors or fail to display the expected output.

Here’s an example of a scenario where a user tried to display the emasignal using the following code:

[[See Video to Reveal this Text or Code Snippet]]

This command often results in no visible output on the chart, leading to frustration for many traders looking to debug and enhance their strategy.

The Solution

To successfully display variables as text on your TradingView chart, it’s crucial to convert numerical values into string format. Pine Script does not automatically convert numbers to strings; hence, a small tweak in your code can lead to the desired output.

Step-by-Step Guide

Convert the Variable to String: You cannot output a number directly; you must first call the tostring() function to convert the variable. For example, to display emasignal, you need to update the code as follows:

[[See Video to Reveal this Text or Code Snippet]]

Incorporate it in Your Code: Let’s revisit the full example, including how to show both SMIsignal and emasignal. You can add the following lines to your script right after calculating these variables:

[[See Video to Reveal this Text or Code Snippet]]

Here’s how your code snippet might look:

[[See Video to Reveal this Text or Code Snippet]]

Final Tips

Positioning Labels: You may need to adjust the vertical position of the labels to avoid overlapping. Use small offsets like high - 1 for additional spacing between multiple labels.

Visibility: Ensure that your chart has enough scale to see the labels clearly. Sometimes they may get hidden due to extreme price movements.

By following these simple steps, you can easily visualize your calculated variables on TradingView, enhancing your data analysis capability.

Now you can confidently display and debug variables in your trading strategies to gain deeper insights into market behaviors!