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Help with calculation in VFE please

MEL, SQL, Oracle

Last Post by Anonymous 1 second ago

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srock

(@srock)

Posts: 81

Estimable Member

Topic starter

I need help with a calculation in VFE. I'm looking for instructions on a simple calculation for the following scenerio - observaction terms in parenthases below:

(AB INDEX L#1) divided by (LTBRACHBPDIA) equals (ABI L RESTNG)
a / b = x

I'd prefer that the result (x) automatically populates IF a and b are entered during this encounter (OBNOW).

Thanks, Sharon

Posted : March 28, 2016 6:06 am

jfitzmd

(@jfitzmd)

Posts: 419

Reputable Member

All obs terms are stored as strings. Must convert string to value for computation and value results to strings to store in obs terms, e.g.

obsnow("X",ABI_Calc(obsnow("A"),obsnow("B"))

.

.

.

{fn ABI_Calc(strA,strB)

{

local strResult=""

strResult=str(val(strA)/val(strB)

}

}

Posted : March 28, 2016 6:24 am

virtualHITman

(@virtualhitman)

Posts: 319

Reputable Member

Sharon,

Dr. Fitzgerald is correct. You must convert the string values to numeric before you can perform the calculation. If you are wanting the calculation to update each time you enter a value for the OBS terms AB INDEX L#1 and LTBRACHBPDIA; you might want to include a watcher expression in the function view that calls the calculation function as follows:

//Update calculation when numerator and denominator OBS terms get updated

{

!if ((OBSNOW("AB INDEX L#1") <> UNDEFINED) and (OBSNOW("LTBRACHBPDIA") <> UNDEFINED)) then

//Execute function to update ABI calculation

ABI_Calc(OBSNOW("AB INDEX L#1"),OBSNOW("LTBRACHBPDIA"))

else

//Do nothing

endif

}

//Function definition (include in function view)

{fn ABI_Calc(strA,strB)

{

local strResult=""

strResult=str(val(strA)/val(strB))

//update calculation OBS term

OBSNOW("ABI L RESTNG",strResult)

}

}

Posted : March 28, 2016 6:49 am

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