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Standard Deviation - long Rate this Topic:
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robbiefx125
Posted : Monday, October 30, 2017 4:30:12 PM
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Joined: 12/18/2004
Posts: 50

Please provide the version 7 equivalent of V17 stddev(72).

Is it too slow for an indicator?

Thanks

Bruce_L
Posted : Monday, October 30, 2017 4:37:41 PM


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Joined: 10/7/2004
Posts: 65,138

No, it is not too slow. This is the standard deviation of sample used in the v7 Bollinger Bands.

SQR(ABS(C ^ 2 + C1 ^ 2 + C2 ^ 2 + C3 ^ 2 + C4 ^ 2 + C5 ^ 2 + C6 ^ 2 + C7 ^ 2 + C8 ^ 2 + C9 ^ 2 + C10 ^ 2 + C11 ^ 2 + C12 ^ 2 + C13 ^ 2 + C14 ^ 2 + C15 ^ 2 + C16 ^ 2 + C17 ^ 2 + C18 ^ 2 + C19 ^ 2 + C20 ^ 2 + C21 ^ 2 + C22 ^ 2 + C23 ^ 2 + C24 ^ 2 + C25 ^ 2 + C26 ^ 2 + C27 ^ 2 + C28 ^ 2 + C29 ^ 2 + C30 ^ 2 + C31 ^ 2 + C32 ^ 2 + C33 ^ 2 + C34 ^ 2 + C35 ^ 2 + C36 ^ 2 + C37 ^ 2 + C38 ^ 2 + C39 ^ 2 + C40 ^ 2 + C41 ^ 2 + C42 ^ 2 + C43 ^ 2 + C44 ^ 2 + C45 ^ 2 + C46 ^ 2 + C47 ^ 2 + C48 ^ 2 + C49 ^ 2 + C50 ^ 2 + C51 ^ 2 + C52 ^ 2 + C53 ^ 2 + C54 ^ 2 + C55 ^ 2 + C56 ^ 2 + C57 ^ 2 + C58 ^ 2 + C59 ^ 2 + C60 ^ 2 + C61 ^ 2 + C62 ^ 2 + C63 ^ 2 + C64 ^ 2 + C65 ^ 2 + C66 ^ 2 + C67 ^ 2 + C68 ^ 2 + C69 ^ 2 + C70 ^ 2 + C71 ^ 2 - 72 * AVGC72 ^ 2) / 71)

Change the / 71) at the end to / 72) instead if you want to calculate the standard deviation of population used in the v17 Bollinger Bands.



-Bruce
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robbiefx125
Posted : Monday, October 30, 2017 4:43:04 PM
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Joined: 12/18/2004
Posts: 50

Great. Thanks for the quick reply.

robbiefx125
Posted : Monday, October 30, 2017 5:01:52 PM
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Joined: 12/18/2004
Posts: 50

A followup question.

I tried to place a minus sign in front of the SQR in order to flip the results. Used parentheses as well.

I received a Missing Argument errror message.

Is that not allowed in TC2000 V7?

Thanks

Bruce_L
Posted : Monday, October 30, 2017 5:15:40 PM


Worden Trainer

Joined: 10/7/2004
Posts: 65,138

You have to put the parentheses around the entire negative expression (only required in v7).

(-SQR(ABS(C ^ 2 + C1 ^ 2 + C2 ^ 2 + C3 ^ 2 + C4 ^ 2 + C5 ^ 2 + C6 ^ 2 + C7 ^ 2 + C8 ^ 2 + C9 ^ 2 + C10 ^ 2 + C11 ^ 2 + C12 ^ 2 + C13 ^ 2 + C14 ^ 2 + C15 ^ 2 + C16 ^ 2 + C17 ^ 2 + C18 ^ 2 + C19 ^ 2 + C20 ^ 2 + C21 ^ 2 + C22 ^ 2 + C23 ^ 2 + C24 ^ 2 + C25 ^ 2 + C26 ^ 2 + C27 ^ 2 + C28 ^ 2 + C29 ^ 2 + C30 ^ 2 + C31 ^ 2 + C32 ^ 2 + C33 ^ 2 + C34 ^ 2 + C35 ^ 2 + C36 ^ 2 + C37 ^ 2 + C38 ^ 2 + C39 ^ 2 + C40 ^ 2 + C41 ^ 2 + C42 ^ 2 + C43 ^ 2 + C44 ^ 2 + C45 ^ 2 + C46 ^ 2 + C47 ^ 2 + C48 ^ 2 + C49 ^ 2 + C50 ^ 2 + C51 ^ 2 + C52 ^ 2 + C53 ^ 2 + C54 ^ 2 + C55 ^ 2 + C56 ^ 2 + C57 ^ 2 + C58 ^ 2 + C59 ^ 2 + C60 ^ 2 + C61 ^ 2 + C62 ^ 2 + C63 ^ 2 + C64 ^ 2 + C65 ^ 2 + C66 ^ 2 + C67 ^ 2 + C68 ^ 2 + C69 ^ 2 + C70 ^ 2 + C71 ^ 2 - 72 * AVGC72 ^ 2) / 71))



-Bruce
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robbiefx125
Posted : Monday, October 30, 2017 5:27:06 PM
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Joined: 12/18/2004
Posts: 50

Thanks again!

Bruce_L
Posted : Tuesday, October 31, 2017 8:42:46 AM


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Joined: 10/7/2004
Posts: 65,138

You're welcome.



-Bruce
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