I'm having trouble with D4.1 in Labview '09. It says to determine someone's age in years, when given current month,day,and year, and the person's birth month, day and year

[jrebes]

Given someone's Birth month day and year....and also the current month day and year...as inputs....calculate their age, in years...as output....age should not increment by one until their birthday arrives that year.   I just cant get the coding right...please help

[RavensFan]

Show what you've done.  What problem are you having?

[nathand]

What have you done so far? Show us what you tried and explain where it fails

What's "D4.1"?

The "Date/Time to Seconds" function will be helpful to you.

[pjr1121]

Subtract the birth year from the current year (four digit format) to get preliminary age.  Then check the date (if current month/day is less  than birth month/day, subtract 1 from age). should only require a few math steps and a case structure.

[RavensFan]

Just subtract the two date/timestamps.  Then round down to the year.

[jcarmody]

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@nathand wrote:

[...] What's "D4.1"? [...]

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That's the number of the homework assignment.

[jrebes]

thanks for your help...I'm new to lab view and am unfamiliar with a lot of the functions.  I was using a select function. If the current year > the birth yr, then Current-birth.  that worked.  but as i try to connect the months and days into it , thats where my issues are coming up...I'm still not getting the outcome i want. Thanks

[RavensFan]

Subtract the years from each other than subtract 1 to get age

Then

If current month is greater than birth month then

  age=age+1

Elseif  current month is equal to birth month AND current day is greater than equal to birthday then

  age = age +1

Else

  age is what you got in the first step.

end if.

[jrebes]

is there an "if" sattement function?

[pjr1121]

It's called a Case Structure.  It has an input terminal which you can wire.  one piece of code inside the structure runs base on the value wired to the input terminal.