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BMI Calculated with CM

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aroberts

(@aroberts)

Posts: 176

Reputable Member

Topic starter

Hello, I am trying to change my code to calculate BMI in CM rather than with inches. Here is my inches code on my action button:

{!OBSNOW("BMI",DOCUMENT.BMI_TEMP)}
{!DOCUMENT.BMI_TEMP = fnCalcBMI(OBSNOW("WEIGHT"),lastobsvalue("HEIGHT"))}
{! fn fnCalcBMI(strWgtNow,strHgtAny)
{IF (OBSNOW("WEIGHT") == "" OR OBSANY("HEIGHT") == "" OR OBSANY("HEIGHT") <= 0)

THEN
return ""
ENDIFreturn (str((OBSNOW("WEIGHT") / 2.2) / ((OBSANY("HEIGHT") / 39.4) ^2)))

}
}
{! DOCUMENT.BMI_TEMP}

So does anyone have a code already written that converts CM and pounds to BMI? Thank you in advance! Amy

Posted : November 12, 2014 10:45 am

aroberts

(@aroberts)

Posts: 176

Reputable Member

Topic starter

Nevermind..... I think I found it but I will post in case someone needs it
{fn ccc_BMI_calc()
{
local a,b,c,d,e,f
a = obsany("Height")
b = obsany("Height (cm)")
c = obsany("Weight")
d = obsany("Weight (Kg)")

if (a="" or c="") and (b="" or d="") then userok("There must be a previous Height and current Weight to calculate the BMI.") return "" else

if a="" then e = val(str(b))/2.54 else e = val(str(a)) endif
if c="" then f = val(str(d))*2.2 else f = val(str(c)) endif

return (f / 2.2) / ((e / 39.4)^2)
endif
}
}

Posted : November 12, 2014 10:47 am

aroberts

(@aroberts)

Posts: 176

Reputable Member

Topic starter

But now stuck again- how do I convert inches to cm?

Posted : November 12, 2014 10:51 am

DavidShower

(@davidshower)

Posts: 1255

Noble Member

You just reverse what you did to convert cm to inches. Instead of dividing by 2.54, multiply by 2.54.

Posted : December 2, 2014 9:26 am

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