Try this for a 21-day intraday intensity.  The .0001 is used to prevent divide by 0 errors.

((((2*C-H-L)/(.0001+H-L))*V)+
(((2*C1-H1-L1)/(.0001+H1-L1))*V1)+
(((2*C2-H2-L2)/(.0001+H2-L2))*V2)+
(((2*C3-H3-L3)/(.0001+H3-L3))*V3)+
(((2*C4-H4-L4)/(.0001+H4-L4))*V4)+
(((2*C5-H5-L5)/(.0001+H5-L5))*V5)+
(((2*C6-H6-L6)/(.0001+H6-L6))*V6)+
(((2*C7-H7-L7)/(.0001+H7-L7))*V7)+
(((2*C8-H8-L8)/(.0001+H8-L8))*V8)+
(((2*C9-H9-L9)/(.0001+H9-L9))*V9)+
(((2*C10-H10-L10)/(.0001+H10-L10))*V10)+
(((2*C11-H11-L11)/(.0001+H11-L11))*V11)+
(((2*C12-H12-L12)/(.0001+H12-L12))*V12)+
(((2*C13-H13-L13)/(.0001+H13-L13))*V13)+
(((2*C14-H14-L14)/(.0001+H14-L14))*V14)+
(((2*C15-H15-L15)/(.0001+H15-L15))*V15)+
(((2*C16-H16-L16)/(.0001+H16-L16))*V16)+
(((2*C17-H17-L17)/(.0001+H17-L17))*V17)+
(((2*C18-H18-L18)/(.0001+H18-L18))*V18)+
(((2*C19-H19-L19)/(.0001+H19-L19))*V19)+
(((2*C20-H20-L20)/(.0001+H20-L20))*V20))/
(.0001+V+V1+V2+V3+V4+V5+V6+V7+V8+V9+V10+
V11+V12+V13+V14+V15+V16+V17+V18+V19+V20)

Great, thanks.

Hello, What exactly would I copy and paste in order to get the Intraday Intensity indicator in TC2000? Thanks. 

I copy and pasted this entire formula in order to get the Intraday Intensity indicator and it gives me the exact same numbers the Chaikin Money Flow indicator gives me. Are you guys getting the same thing? 

The formula as written should be the same as Chaikin Money Flow.

I have found different definitions of intraday intensity online. At least one doesn't have a period as it is the name of an intermediate step in calculating the Chaikin Money Flow.

IIF(H > L, V * (2 * C - H - L) / (H - L), 0)

But another version developed by Dave Bostian seems to differ from Chaikin Money Flow primarily in not dividing the sum over time of what Chaikin seems to call the intraday intensity index by total volume.

SUM(IIF(H > L, V * (2 * C - H - L) / (H - L), 0), 21)

With the Chaikin Money Flow following a similar formula structure being the following.

SUM(IIF(H > L, V * (2 * C - H - L) / (H - L), 0), 21) / SUM(V, 21)

Note that this is all taken from a few pages I found in search on the internet. I do not own the books and am not working from original sources.

Hi Bruce, thanks for your response. So I see that the formula below seems to be the accepted formula for the 21 day Intraday Intensity indicator...

So would I simply copy and paste the entire formula above (top to bottom) into the formula bar in order to have the 21 day intraday intensity indicator? Thanks in advance. 

There wouldn't be a reason to plot that formula on the chart in TC2000, you could just plot Chaikin Money Flow instead.

The only reasons I can think of to use a formula for plotting the indicator would be if you wanted to use one of the first two formulas given in my Tuesday, December 11, 2018 9:04:52 AM ET post or if you are using an older version of the software without the new syntax (which does not seem to be the case).

If you do want to use a formula to plot an indicator in TC2000 v18, you would add a Custom PCF Indicator to the chart with the desired formula as the Formula setting.

How to Add an Indicator to a Chart Template