Bruce

could you please show me a PCF for a NIB; inside bar

Thanks

If by inside bar you just mean that the current bar is contained entirely within the previous bar:

L1 <= L AND H <= H1

You can add other requirements to this such as the current bar having a high that is above the close:

L1 <= L AND H <= H1 AND L < H

And/or that the current bar actually be smaller than the previous bar:

L1 <= L AND H <= H1 AND L < H AND H - L < H1 - L1

In the case of a "Narrow Inside Bar" you might even want to set a threshold for size of the inside bar such as it being less than 50% of the size of the previous bar:

L1 <= L AND H <= H1 AND L < H AND H - L < .5 * (H1 - L1)

Writing Custom Conditions: The Basics
PCF Formula Descriptions
Handy PCF example formulas to help you learn the syntax of PCFs!