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how to prevent SAS forcing calculated numeric values into character values

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how to prevent SAS forcing calculated numeric values into character values

So this seems very simple but very wired problem has confused me for so long, and it never happened like this before... Here it is:

 

I am calculating a variable called M_final = 8-(M1+M2+M3+M4+M5+M6+M7+(M8/4)

all M1 to M8 are numerical values, so I would expect M_final be a numerical value as well, also with decimal points (because M8/4), later I will need this M_final to create a character category like HighScore, LowScore

 

IDM1M2M3M4M5M6M7M8
110001014
201110001
311111113
410011100
510101010
601010012
700000101
801010111
910101013
1000000002

 

So my code in data step is (as easy as it is):

M_Score = 8-(M1+M2+M3+M4+M5+M6+M7+(M8/4));

 

but this is what SAS keeps showing me in Log:

Numeric values have been converted to character values at the places given by:

(Line)Smiley SadColumn).

-> it points to the line above

 

I am very confused why it happened and how to make it work as it should.

 

I've tried to use input to force the values back from character to numeric values, but it creates another problem that all decimal points are lost....

 

Thank you!


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‎10-20-2017 09:07 AM
Esteemed Advisor
Posts: 5,624

Re: how to prevent SAS forcing calculated numeric values into character values

Posted in reply to LisaYIN9309

Maybe M_score or M_final already exist as a character variable in your input dataset.

PG

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Super User
Posts: 24,001

Re: how to prevent SAS forcing calculated numeric values into character values

Posted in reply to LisaYIN9309

One of the variables in your formula is not numeric.

 

Run a PROC CONTENTS and check the type.

 

 

Solution
‎10-20-2017 09:07 AM
Esteemed Advisor
Posts: 5,624

Re: how to prevent SAS forcing calculated numeric values into character values

Posted in reply to LisaYIN9309

Maybe M_score or M_final already exist as a character variable in your input dataset.

PG
Contributor
Posts: 38

Re: how to prevent SAS forcing calculated numeric values into character values

I thought about it, but no, M_final / M_score (sorry I keep using them interchangeably) is created rather than already exist
Trusted Advisor
Posts: 1,848

Re: how to prevent SAS forcing calculated numeric values into character values

Posted in reply to LisaYIN9309

Please post your full code and log.

Super User
Posts: 24,001

Re: how to prevent SAS forcing calculated numeric values into character values

Post the PROC CONTENTS output. 

Contributor
Posts: 38

Re: how to prevent SAS forcing calculated numeric values into character values

Posted in reply to LisaYIN9309

thanks @Reeza@Shmuel@Shmuel, stupid me, you guys are right. What happened is that I have different dataset from different school for calculation, some of them did have M_score/M_final in the dataset, with all missing character values. I dropped them in set step and re-create M_Score/M_final with calculation.

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