The average directional index (ADX) is a technical analysis indicator used by some traders to determine the strength of a trend. The trend can be either up or down, and this is shown by two accompanying indicators, the negative directional indicator (-DI) and the positive directional indicator (+DI). Therefore, the ADX commonly includes three separate lines. These are used to help assess whether a trade should be taken long or short, or if a trade should be taken at all.

- The ADX makes use of a positive (+DI) and negative (-DI) directional indicator in addition to the trendline.
- The
**Average Directional Index (ADX)**is in turn derived from the smoothed averages of the difference between +DI and -DI; it measures the**strength**of the trend (regardless of direction) over time

The ADX requires a sequence of calculations due to the multiple lines in the indicator.

**+DI=(Smoothed +DMATR )×100**

**-DI=(Smoothed -DMATR )×100**

**DX=(∣+DI−-DI∣∣+DI+-DI∣)×100**

**ADX=(Prior ADX×13)+Current ADX14**

**where:**

**+DM (Directional Movement)=Current High−PH**

**PH=Previous High**

**-DM=Previous Low−Current Low**

**Smoothed +/-DM=∑�=114DM−(∑�=114DM14)+CDM**

**CDM=Current DM**

**ATR=Average True Range**

- Calculate +DM, -DM, and the true range (TR) for each period. Fourteen periods are typically used.
- +DM = current high - previous high.
- -DM = previous low - current low.
- Use +DM when current high - previous high > previous low - current low. Use -DM when previous low - current low > current high - previous high.
- TR is the greater of the current high - current low, current high - previous close, or current low - previous close.
- Smooth the 14-period averages of +DM, -DM, and TR—the TR formula is below. Insert the -DM and +DM values to calculate the smoothed averages of those.
- First 14TR = sum of first 14 TR readings.
- Next 14TR value = first 14TR - (prior 14TR/14) + current TR.
- Next, divide the smoothed +DM value by the
__smoothed TR__value to get +DI. Multiply by 100. - Divide the smoothed -DM value by the smoothed TR value to get -DI. Multiply by 100.
- The directional movement index (DMI) is +DI minus -DI, divided by the sum of +DI and -DI (all absolute values). Multiply by 100.
- To get the ADX, continue to calculate DX values for at least 14 periods. Then, smooth the results to get ADX.
- First ADX = sum 14 periods of DX / 14.
- After that, ADX = ((prior ADX * 13) + current DX) / 14.

**You can scan ADX in smart karobaar app with following process :**

2) Then tap on technical scanner

3) After that you have to tap on ADX under momentum

4) At last you can scan ADX .

**you can download the app from following link**