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T O P I C    R E V I E W
AKazak Posted - 07/08/2021 : 12:20:01 PM
OriginPro 2021b (64-bit) SR2 9.8.5.212
Windows 10 21H1 x64

Greetings!

I want to put the missing value in the cell using the following column formula:

if(sign(D)!=sign(D[i+1]),--,0)


However it seems to break in the middle of my table:


What could cause this?

Thank you.

---
Andrey
4   L A T E S T    R E P L I E S    (Newest First)
AKazak Posted - 07/09/2021 : 08:28:10 AM
quote:
Originally posted by cpyang

"--" is not a valid numeric expression, it is what we show in results for a missing value. Sure we can improve that particular function so any invalid text entered should resolve into a missing value so most likely that function didn't do that.

You can also use a function to indicate missing value, like NA().

0/0 is the way we used in most places as an expression that will resolve into a missing value.

CP



Got it!
Thank you.

---
Andrey
cpyang Posted - 07/09/2021 : 02:57:20 AM
"--" is not a valid numeric expression, it is what we show in results for a missing value. Sure we can improve that particular function so any invalid text entered should resolve into a missing value so most likely that function didn't do that.

You can also use a function to indicate missing value, like NA().

0/0 is the way we used in most places as an expression that will resolve into a missing value.

CP
AKazak Posted - 07/08/2021 : 3:08:33 PM
quote:
Originally posted by YimingChen

try this:
if(sign(D)!=sign(D[i+1]),0/0,0)


James


It works as expected!
Please clarify the difference between 0/0 and --.

Thank you.

---
Andrey
YimingChen Posted - 07/08/2021 : 12:32:58 PM
try this:
if(sign(D)!=sign(D[i+1]),0/0,0)


James

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