Optimizing Technical Analysis with Logarithmic Scales

21 de jul.

▮ Introduction

In the realm of technical analysis, making sense of market behavior is crucial for traders and investors. One foundational aspect is selecting the right scale to view price charts. This educational piece delves into the significance of logarithmic scaling and how it can enhance your technical analysis.


▮ Understanding Scales

- Linear Scale
This is a common graphing approach where each unit change on the vertical axis represents the same absolute value.

- Logarithmic Scale
Unlike the linear scale, the logarithmic scale adjusts intervals to represent percentage changes.
Here, each step up/down the axis signifies a constant percentage increase/decrease.


▮ Why Use the Logarithmic Scale?

The logarithmic scale offers a more insightful way to analyze price movements, especially when the price range varies significantly.

By focusing on percentage changes rather than absolute values, long-term trends and patterns become more apparent, making it easier to make informed trading decisions.


▮ Comparative Examples

Consider the Bitcoin price movement:



- On a linear scale, a 343% increase from $3,124 to $13,870 looks smaller compared to the same percentage increase from $13,870 to $61,769. This disparity occurs because the linear scale emphasizes absolute changes.
- On the logarithmic scale, both 343% increases appear proportional, giving a clearer representation.

Additionally, in a falling price scenario, a linear graph might show a smaller box for an 84% drop compared to a 77% drop, simply because of absolute values' significance. The logarithmic scale corrects this, showing the true extent of percentage declines.






▮ Advantages and Disadvantages

Advantages:
- Fairer comparison of price movements.
- Consistent representation of percentage changes.
- More reliable support and resistance lines.

Disadvantages:
- Potential misalignment of alerts (tradingview.com/chart/?solution=43000690942).
- Drawing inclined lines might create distortions when switching scales:




A possible solution is the use the "Object Tree" feature on TradingView to manage graphical elements distinctly for each scale.


▮ How to Apply Logarithmic Scale on TradingView

Enabling the logarithmic scale on TradingView is straightforward:

- Click on the letter "L" in the lower right corner of the graph (the column where prices are shown);
- Another option is use of the keyboard shortcut, pressing ALT + L.


▮ Conclusion

The logarithmic scale is an invaluable tool for technical analysis, providing a more accurate representation of percentage changes and simplifying long-term pattern recognition.
While it has its limitations, thoughtful application alongside other analytical tools can greatly enhance your market insights.