How would I go about screening for issues (writing a PCF) whose RSI period 2 is less than 10? Tx.

I wouldn't write a Condition Formula. I would click on the RSI Indicator on the chart and select Create Scan Condition. Then select Less Than from the Condition drop-down menu and set Less than to 10.

This would be easier and more efficient than creating a Condition Formula.

If you really need to create a Condition Formula, the formula would be relatively simple if you are using the plain RSI indicator:

RSI2 < 10

But quite a bit longer if you are using the RSI - Wilder's indicator:

50 * (C - XAVGC3.1) / 2 / (.500030519440884 * (ABS(C - C1) + .5 * (ABS(C1 - C2) + .5 * (ABS(C2 - C3) + .5 * (ABS(C3 - C4) + .5 * (ABS(C4 - C5) + .5 * (ABS(C5 - C6) + .5 * (ABS(C6 - C7) + .5 * (ABS(C7 - C8) + .5 * (ABS(C8 - C9) + .5 * (ABS(C9 - C10) + .5 * (ABS(C10 - C11) + .5 * (ABS(C11 - C12) + .5 * (ABS(C12 - C13) + .5 * (ABS(C13 - C14)))))))))))))))) + 50 < 10

PCF Formula Descriptions
Handy PCF example formulas to help you learn the syntax of PCFs!
Cascades of Moving Averages

Thank you, Bruce.

Again, thank you, Bruce. Your formula is fabulous. Works like a charm. Greatly appreciated.

is there a way to do the following condition with RSI Wilder in TC2000 12.1 and also in TC2000 v7

WRSI2.1.2 > 70

and WRSI2.1.1 < 70

and WRSI2.1<WRSI2.1.1

I'm trying to find wrsi with 2 period crossing down 70 and today wrsi(2) is less than yesterday wrsi(2)

In the forum I found one of the messages where you indicated that wilder rsi 14 to be rsi14.1, but when I use rsi2 I found it to be the RSI and not the Wilder's RSI.  I know WRSI is not the correct syntax. thx.

I would not say that a 14-Period Wilder's Smoothed RSI is RSI14.1 as the built in syntax for RSI in the Personal Criteria Formula Language is always the non-Wilder's Smoothed version (if I did, please point out the particular topic so it can be corrected). I usually go to great pains to point this out as I did above.

Please try the following Condition Formula. It should work in both TC2000 version 12.1 and TC2000 version 7:

50 * (C2 - XAVGC3.3) / 2 / (.500030519440884 * (ABS(C2 - C3) + .5 * (ABS(C3 - C4) + .5 * (ABS(C4 - C5) + .5 * (ABS(C5 - C6) + .5 * (ABS(C6 - C7) + .5 * (ABS(C7 - C8) + .5 * (ABS(C8 - C9) + .5 * (ABS(C9 - C10) + .5 * (ABS(C10 - C11) + .5 * (ABS(C11 - C12) + .5 * (ABS(C12 - C13) + .5 * (ABS(C13 - C14) + .5 * (ABS(C14 - C15) + .5 * (ABS(C15 - C16)))))))))))))))) + 50 > 70 AND 50 * (C1 - XAVGC3.2) / 2 / (.500030519440884 * (ABS(C1 - C2) + .5 * (ABS(C2 - C3) + .5 * (ABS(C3 - C4) + .5 * (ABS(C4 - C5) + .5 * (ABS(C5 - C6) + .5 * (ABS(C6 - C7) + .5 * (ABS(C7 - C8) + .5 * (ABS(C8 - C9) + .5 * (ABS(C9 - C10) + .5 * (ABS(C10 - C11) + .5 * (ABS(C11 - C12) + .5 * (ABS(C12 - C13) + .5 * (ABS(C13 - C14) + .5 * (ABS(C14 - C15)))))))))))))))) + 50 < 70 AND C < C1

I did not bother to write out the the WRSI2.1 < WRSI2.1.1 portion as this should be true if and only if C < C1.

this is what I saw in your syntax of PCFs

Handy PCF example formulas to help you learn the syntax of PCFs!

Wilder&rsquo;s RSI - 14 day

(RSI14.1)

Wilder&rsquo;s RSI - 14 day with 10 day avg period
(RSI14.10)

Wilder&rsquo;s RSI - 14 day yesterday
(RSI14.1.1)

Wilder&rsquo;s RSI - 14 day with 10 day avg period yesterday
(RSI14.10.1)

==========

I've try the conditional formula that you posted on tc2000 v12 and v7 on sp500 and I've got 284 items in the watch list, some were crossing down from 70, but some were not.  BMY, URBN, ISRG to name a few.

BTW, is there a documentation about how to write those codes? it seem quite complex to be able to grasp what the formula is trying to do. what do I do if I want to change the condition crossing down from 65 instead of 70?  Thanks!

Many people are not as careful about the distinction as I am. Craig's Handy PCF example formulas to help you learn the syntax of PCFs! topic containing basic example Personal Criteria Formulas is correct (albeit incredibly vague) for TC2000 version 7 as TC2000 version 7 contains only a single RSI indicator called Wilder's RSI.

It does not contemplate all of the options available for every indicator for which an example is provided (Wilder's RSI is not the only indicator where this is the case, even Moving Averages have options which are not explored).

There is on option within TC2000 version 7's Wilder's RSI which allows you to select Use Wilders Smoothing. This is not checked by default when TC2000 version 7 ships, but it can be changed and will retain its most recent settings every time you create a new Wilder's RSI.

TC2000 version 12 doesn't have a Wilder's RSI indicator with this setting. It does not have an indicator by this name at all. It has an RSI indicator which does not use Wilder's Smoothing and an RSI - Wilder's indicator which does use Wilder's Smoothing.

That said, I have altered Craig's topic to make it clear that the examples are not Wilder's Smoothed. 

My PCF Formula Descriptions topic contains a fairly comprehensive list of all of the syntax which is valid in the Personal Criteria Formula Language and notes specifically that the RSI syntax is not Wilder's Smoothed.

The Wilder's Smoothed version of this would be:

50 * (C - XAVGC27.1) / 14 / (.071435345156143 * (ABS(C - C1) + 13 / 14 * (ABS(C1 - C2) + 13 / 14 * (ABS(C2 - C3) + 13 / 14 * (ABS(C3 - C4) + 13 / 14 * (ABS(C4 - C5) + 13 / 14 * (ABS(C5 - C6) + 13 / 14 * (ABS(C6 - C7) + 13 / 14 * (ABS(C7 - C8) + 13 / 14 * (ABS(C8 - C9) + 13 / 14 * (ABS(C9 - C10) + 13 / 14 * (ABS(C10 - C11) + 13 / 14 * (ABS(C11 - C12) + 13 / 14 * (ABS(C12 - C13) + 13 / 14 * (ABS(C13 - C14) + 13 / 14 * (ABS(C14 - C15) + 13 / 14 * (ABS(C15 - C16) + 13 / 14 * (ABS(C16 - C17) + 13 / 14 * (ABS(C17 - C18) + 13 / 14 * (ABS(C18 - C19) + 13 / 14 * (ABS(C19 - C20) + 13 / 14 * (ABS(C20 - C21) + 13 / 14 * (ABS(C21 - C22) + 13 / 14 * (ABS(C22 - C23) + 13 / 14 * (ABS(C23 - C24) + 13 / 14 * (ABS(C24 - C25) + 13 / 14 * (ABS(C25 - C26) + 13 / 14 * (ABS(C26 - C27) + 13 / 14 * (ABS(C27 - C28) + 13 / 14 * (ABS(C28 - C29) + 13 / 14 * (ABS(C29 - C30) + 13 / 14 * (ABS(C30 - C31) + 13 / 14 * (ABS(C31 - C32) + 13 / 14 * (ABS(C32 - C33) + 13 / 14 * (ABS(C33 - C34) + 13 / 14 * (ABS(C34 - C35) + 13 / 14 * (ABS(C35 - C36) + 13 / 14 * (ABS(C36 - C37) + 13 / 14 * (ABS(C37 - C38) + 13 / 14 * (ABS(C38 - C39) + 13 / 14 * (ABS(C39 - C40) + 13 / 14 * (ABS(C40 - C41) + 13 / 14 * (ABS(C41 - C42) + 13 / 14 * (ABS(C42 - C43) + 13 / 14 * (ABS(C43 - C44) + 13 / 14 * (ABS(C44 - C45) + 13 / 14 * (ABS(C45 - C46) + 13 / 14 * (ABS(C46 - C47) + 13 / 14 * (ABS(C47 - C48) + 13 / 14 * (ABS(C48 - C49) + 13 / 14 * (ABS(C49 - C50) + 13 / 14 * (ABS(C50 - C51) + 13 / 14 * (ABS(C51 - C52) + 13 / 14 * (ABS(C52 - C53) + 13 / 14 * (ABS(C53 - C54) + 13 / 14 * (ABS(C54 - C55) + 13 / 14 * (ABS(C55 - C56) + 13 / 14 * (ABS(C56 - C57) + 13 / 14 * (ABS(C57 - C58) + 13 / 14 * (ABS(C58 - C59) + 13 / 14 * (ABS(C59 - C60) + 13 / 14 * (ABS(C60 - C61) + 13 / 14 * (ABS(C61 - C62) + 13 / 14 * (ABS(C62 - C63) + 13 / 14 * (ABS(C63 - C64) + 13 / 14 * (ABS(C64 - C65) + 13 / 14 * (ABS(C65 - C66) + 13 / 14 * (ABS(C66 - C67) + 13 / 14 * (ABS(C67 - C68) + 13 / 14 * (ABS(C68 - C69) + 13 / 14 * (ABS(C69 - C70) + 13 / 14 * (ABS(C70 - C71) + 13 / 14 * (ABS(C71 - C72) + 13 / 14 * (ABS(C72 - C73) + 13 / 14 * (ABS(C73 - C74) + 13 / 14 * (ABS(C74 - C75) + 13 / 14 * (ABS(C75 - C76) + 13 / 14 * (ABS(C76 - C77) + 13 / 14 * (ABS(C77 - C78) + 13 / 14 * (ABS(C78 - C79) + 13 / 14 * (ABS(C79 - C80) + 13 / 14 * (ABS(C80 - C81) + 13 / 14 * (ABS(C81 - C82) + 13 / 14 * (ABS(C82 - C83) + 13 / 14 * (ABS(C83 - C84) + 13 / 14 * (ABS(C84 - C85) + 13 / 14 * (ABS(C85 - C86) + 13 / 14 * (ABS(C86 - C87) + 13 / 14 * (ABS(C87 - C88) + 13 / 14 * (ABS(C88 - C89) + 13 / 14 * (ABS(C89 - C90) + 13 / 14 * (ABS(C90 - C91) + 13 / 14 * (ABS(C91 - C92) + 13 / 14 * (ABS(C92 - C93) + 13 / 14 * (ABS(C93 - C94) + 13 / 14 * (ABS(C94 - C95) + 13 / 14 * (ABS(C95 - C96) + 13 / 14 * (ABS(C96 - C97) + 13 / 14 * (ABS(C97 - C98) + 13 / 14 * (ABS(C98 - C99) + 13 / 14 * (ABS(C99 - C100) + 13 / 14 * (ABS(C100 - C101) + 13 / 14 * (ABS(C101 - C102) + 13 / 14 * (ABS(C102 - C103) + 13 / 14 * (ABS(C103 - C104) + 13 / 14 * (ABS(C104 - C105) + 13 / 14 * (ABS(C105 - C106) + 13 / 14 * (ABS(C106 - C107) + 13 / 14 * (ABS(C107 - C108) + 13 / 14 * (ABS(C108 - C109) + 13 / 14 * (ABS(C109 - C110) + 13 / 14 * (ABS(C110 - C111) + 13 / 14 * (ABS(C111 - C112) + 13 / 14 * (ABS(C112 - C113) + 13 / 14 * (ABS(C113 - C114) + 13 / 14 * (ABS(C114 - C115) + 13 / 14 * (ABS(C115 - C116) + 13 / 14 * (ABS(C116 - C117) + 13 / 14 * (ABS(C117 - C118) + 13 / 14 * (ABS(C118 - C119) + 13 / 14 * (ABS(C119 - C120) + 13 / 14 * (ABS(C120 - C121) + 13 / 14 * (ABS(C121 - C122) + 13 / 14 * (ABS(C122 - C123) + 13 / 14 * (ABS(C123 - C124) + 13 / 14 * (ABS(C124 - C125))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) + 50

It is not possible to create an Indicator Formula for this which would be short enough to post in the forums.

50 * (C1 - XAVGC27.2) / 14 / (0.071435345156143 * (ABS(C1 - C2) + 13 / 14 * (ABS(C2 - C3) + 13 / 14 * (ABS(C3 - C4) + 13 / 14 * (ABS(C4 - C5) + 13 / 14 * (ABS(C5 - C6) + 13 / 14 * (ABS(C6 - C7) + 13 / 14 * (ABS(C7 - C8) + 13 / 14 * (ABS(C8 - C9) + 13 / 14 * (ABS(C9 - C10) + 13 / 14 * (ABS(C10 - C11) + 13 / 14 * (ABS(C11 - C12) + 13 / 14 * (ABS(C12 - C13) + 13 / 14 * (ABS(C13 - C14) + 13 / 14 * (ABS(C14 - C15) + 13 / 14 * (ABS(C15 - C16) + 13 / 14 * (ABS(C16 - C17) + 13 / 14 * (ABS(C17 - C18) + 13 / 14 * (ABS(C18 - C19) + 13 / 14 * (ABS(C19 - C20) + 13 / 14 * (ABS(C20 - C21) + 13 / 14 * (ABS(C21 - C22) + 13 / 14 * (ABS(C22 - C23) + 13 / 14 * (ABS(C23 - C24) + 13 / 14 * (ABS(C24 - C25) + 13 / 14 * (ABS(C25 - C26) + 13 / 14 * (ABS(C26 - C27) + 13 / 14 * (ABS(C27 - C28) + 13 / 14 * (ABS(C28 - C29) + 13 / 14 * (ABS(C29 - C30) + 13 / 14 * (ABS(C30 - C31) + 13 / 14 * (ABS(C31 - C32) + 13 / 14 * (ABS(C32 - C33) + 13 / 14 * (ABS(C33 - C34) + 13 / 14 * (ABS(C34 - C35) + 13 / 14 * (ABS(C35 - C36) + 13 / 14 * (ABS(C36 - C37) + 13 / 14 * (ABS(C37 - C38) + 13 / 14 * (ABS(C38 - C39) + 13 / 14 * (ABS(C39 - C40) + 13 / 14 * (ABS(C40 - C41) + 13 / 14 * (ABS(C41 - C42) + 13 / 14 * (ABS(C42 - C43) + 13 / 14 * (ABS(C43 - C44) + 13 / 14 * (ABS(C44 - C45) + 13 / 14 * (ABS(C45 - C46) + 13 / 14 * (ABS(C46 - C47) + 13 / 14 * (ABS(C47 - C48) + 13 / 14 * (ABS(C48 - C49) + 13 / 14 * (ABS(C49 - C50) + 13 / 14 * (ABS(C50 - C51) + 13 / 14 * (ABS(C51 - C52) + 13 / 14 * (ABS(C52 - C53) + 13 / 14 * (ABS(C53 - C54) + 13 / 14 * (ABS(C54 - C55) + 13 / 14 * (ABS(C55 - C56) + 13 / 14 * (ABS(C56 - C57) + 13 / 14 * (ABS(C57 - C58) + 13 / 14 * (ABS(C58 - C59) + 13 / 14 * (ABS(C59 - C60) + 13 / 14 * (ABS(C60 - C61) + 13 / 14 * (ABS(C61 - C62) + 13 / 14 * (ABS(C62 - C63) + 13 / 14 * (ABS(C63 - C64) + 13 / 14 * (ABS(C64 - C65) + 13 / 14 * (ABS(C65 - C66) + 13 / 14 * (ABS(C66 - C67) + 13 / 14 * (ABS(C67 - C68) + 13 / 14 * (ABS(C68 - C69) + 13 / 14 * (ABS(C69 - C70) + 13 / 14 * (ABS(C70 - C71) + 13 / 14 * (ABS(C71 - C72) + 13 / 14 * (ABS(C72 - C73) + 13 / 14 * (ABS(C73 - C74) + 13 / 14 * (ABS(C74 - C75) + 13 / 14 * (ABS(C75 - C76) + 13 / 14 * (ABS(C76 - C77) + 13 / 14 * (ABS(C77 - C78) + 13 / 14 * (ABS(C78 - C79) + 13 / 14 * (ABS(C79 - C80) + 13 / 14 * (ABS(C80 - C81) + 13 / 14 * (ABS(C81 - C82) + 13 / 14 * (ABS(C82 - C83) + 13 / 14 * (ABS(C83 - C84) + 13 / 14 * (ABS(C84 - C85) + 13 / 14 * (ABS(C85 - C86) + 13 / 14 * (ABS(C86 - C87) + 13 / 14 * (ABS(C87 - C88) + 13 / 14 * (ABS(C88 - C89) + 13 / 14 * (ABS(C89 - C90) + 13 / 14 * (ABS(C90 - C91) + 13 / 14 * (ABS(C91 - C92) + 13 / 14 * (ABS(C92 - C93) + 13 / 14 * (ABS(C93 - C94) + 13 / 14 * (ABS(C94 - C95) + 13 / 14 * (ABS(C95 - C96) + 13 / 14 * (ABS(C96 - C97) + 13 / 14 * (ABS(C97 - C98) + 13 / 14 * (ABS(C98 - C99) + 13 / 14 * (ABS(C99 - C100) + 13 / 14 * (ABS(C100 - C101) + 13 / 14 * (ABS(C101 - C102) + 13 / 14 * (ABS(C102 - C103) + 13 / 14 * (ABS(C103 - C104) + 13 / 14 * (ABS(C104 - C105) + 13 / 14 * (ABS(C105 - C106) + 13 / 14 * (ABS(C106 - C107) + 13 / 14 * (ABS(C107 - C108) + 13 / 14 * (ABS(C108 - C109) + 13 / 14 * (ABS(C109 - C110) + 13 / 14 * (ABS(C110 - C111) + 13 / 14 * (ABS(C111 - C112) + 13 / 14 * (ABS(C112 - C113) + 13 / 14 * (ABS(C113 - C114) + 13 / 14 * (ABS(C114 - C115) + 13 / 14 * (ABS(C115 - C116) + 13 / 14 * (ABS(C116 - C117) + 13 / 14 * (ABS(C117 - C118) + 13 / 14 * (ABS(C118 - C119) + 13 / 14 * (ABS(C119 - C120) + 13 / 14 * (ABS(C120 - C121) + 13 / 14 * (ABS(C121 - C122) + 13 / 14 * (ABS(C122 - C123) + 13 / 14 * (ABS(C123 - C124) + 13 / 14 * (ABS(C124 - C125) + 13 / 14 * (ABS(C125 - C126))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) + 50

It is not possible to create an Indicator Formula for this which would be short enough to post in the forums.

A Wilder's Smoothed RSI is pretty complex formula to create. The basics are that RSI is essentially the ratio of the moving average of the positive net changes in price to the moving average of the absolute net changes in price expressed as a percentage.

The moving averages need to be expanded because the built in AVG() and XAVG() functions cannot accept other functions or formulas as arguments. The moving average expansion is explored in the Cascades of Moving Averages topic.

The form used has some optimizations which allow us to shorten the formula slightly. These optimizations are explored in the does anyone know how to use rsi in a pcf topic.

This may come more to the crux of both your results and your lack of understanding of the formula. It didn't have the > 70 and < 70 parts in it when originally posted.

You need to change > 70 to > 65 and the < 70 to < 65.

Bruce, how would I scan for Wilder's RSI < 10 being true yesterday?

You would increase all of the bars ago parameters in every component of the formula by 1. So a Condition Formula for a 2-Period Wilder's Smoothed RSI being less than 10 during the previous bar could be written as:

50 * (C1 - XAVGC3.2) / 2 / (.500030519440884 * (ABS(C1 - C2) + .5 * (ABS(C2 - C3) + .5 * (ABS(C3 - C4) + .5 * (ABS(C4 - C5) + .5 * (ABS(C5 - C6) + .5 * (ABS(C6 - C7) + .5 * (ABS(C7 - C8) + .5 * (ABS(C8 - C9) + .5 * (ABS(C9 - C10) + .5 * (ABS(C10 - C11) + .5 * (ABS(C11 - C12) + .5 * (ABS(C12 - C13) + .5 * (ABS(C13 - C14) + .5 * (ABS(C14 - C15)))))))))))))))) + 50 < 10

So the XAVGC3.1 gets changed to XAVGC3.2, C gets changed to C1, C1 gets changed to C2, etc. for the entire formula.

Thank You Bruce

You're welcome.