Invalid numeric data error

[mjawla]

I am trying to group numeric data of two variables into categories of high and low, but I keep getting this Invalid numeric data error. How do I resolve it please.

Errors
Warnings (1)
Notes (44)

1 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
72
73 data dhs.CRA1;
74 set dhs.CRA2;
75 if Triglyc <='199' then Triglyc='Low';
76 else Triglyc='High';
77 if HIV_RNA <='400' then HIV_RNA='Low';
78 else if '30000'>= HIV_RNA >='401' then HIV_RNA='High';
79 else HIV_RNA='Very_High';
80 run;

NOTE: Character values have been converted to numeric values at the places given by: (Line):(Column).
75:14 75:33 76:14 77:14 77:33 78:9 78:29 78:48 79:14
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'High' , at line 78 column 48.
LabSubNo=1 Date=07/08/2004 Week=2 HIV_RNA=. CD4=743 Triglyc=. Sex=male Race=Black HIVRiskF=IDU Randmizn=fAPV _ERROR_=1 _N_=1
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Very_High' , at line 79 column 14.
LabSubNo=1 Date=05/28/2004 Week=1 HIV_RNA=. CD4=724 Triglyc=. Sex=male Race=Black HIVRiskF=IDU Randmizn=fAPV _ERROR_=1 _N_=2
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Very_High' , at line 79 column 14.
LabSubNo=2 Date=06/01/2004 Week=2 HIV_RNA=. CD4=58 Triglyc=. Sex=male Race=Hispanic HIVRiskF=homosexual Randmizn=fAPV _ERROR_=1
_N_=3
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Low' , at line 77 column 33.
LabSubNo=2 Date=01/31/2005 Week=6 HIV_RNA=. CD4=323 Triglyc=. Sex=male Race=Hispanic HIVRiskF=homosexual Randmizn=fAPV _ERROR_=1
_N_=4
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Low' , at line 77 column 33.
LabSubNo=2 Date=11/01/2004 Week=5 HIV_RNA=. CD4=449 Triglyc=. Sex=male Race=Hispanic HIVRiskF=homosexual Randmizn=fAPV _ERROR_=1
_N_=5
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Low' , at line 77 column 33.
LabSubNo=2 Date=09/21/2004 Week=4 HIV_RNA=. CD4=294 Triglyc=. Sex=male Race=Hispanic HIVRiskF=homosexual Randmizn=fAPV _ERROR_=1
_N_=6
NOTE: Invalid numeric data, 'High' , at line 76 column 14.
NOTE: Invalid numeric data, 'Low' , at line 77 column 33.
LabSubNo=2 Date=07/06/2004 Week=3 HIV_RNA=. CD4=233 Triglyc=. Sex=male Race=Hispanic HIVRiskF=homosexual Randmizn=fAPV _ERROR_=1
_N_=7
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Low' , at line 77 column 33.
LabSubNo=2 Date=04/25/2005 Week=7 HIV_RNA=. CD4=494 Triglyc=. Sex=male Race=Hispanic HIVRiskF=homosexual Randmizn=fAPV _ERROR_=1
_N_=8
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Very_High' , at line 79 column 14.
LabSubNo=2 Date=05/10/2004 Week=1 HIV_RNA=. CD4=76 Triglyc=. Sex=male Race=Hispanic HIVRiskF=homosexual Randmizn=fAPV _ERROR_=1
_N_=9
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Very_High' , at line 79 column 14.
LabSubNo=3 Date=05/06/2004 Week=1 HIV_RNA=. CD4=40 Triglyc=. Sex=male Race=Black HIVRiskF=heterosexual Randmizn=fAPV _ERROR_=1
_N_=10
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Very_High' , at line 79 column 14.
LabSubNo=3 Date=05/26/2004 Week=2 HIV_RNA=. CD4=134 Triglyc=. Sex=male Race=Black HIVRiskF=heterosexual Randmizn=fAPV _ERROR_=1
_N_=11
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Low' , at line 77 column 33.
LabSubNo=3 Date=08/26/2004 Week=4 HIV_RNA=. CD4=190 Triglyc=. Sex=male Race=Black HIVRiskF=heterosexual Randmizn=fAPV _ERROR_=1
_N_=12
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Low' , at line 77 column 33.
LabSubNo=3 Date=11/18/2004 Week=5 HIV_RNA=. CD4=7.8000001907 Triglyc=. Sex=male Race=Black HIVRiskF=heterosexual Randmizn=fAPV
_ERROR_=1 _N_=13
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Low' , at line 77 column 33.
LabSubNo=3 Date=03/03/2005 Week=6 HIV_RNA=. CD4=167 Triglyc=. Sex=male Race=Black HIVRiskF=heterosexual Randmizn=fAPV _ERROR_=1
_N_=14
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Low' , at line 77 column 33.
LabSubNo=3 Date=07/01/2004 Week=3 HIV_RNA=. CD4=165 Triglyc=. Sex=male Race=Black HIVRiskF=heterosexual Randmizn=fAPV _ERROR_=1
_N_=15
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Low' , at line 77 column 33.
LabSubNo=3 Date=04/10/2005 Week=7 HIV_RNA=. CD4=. Triglyc=. Sex=male Race=Black HIVRiskF=heterosexual Randmizn=fAPV _ERROR_=1 _N_=16
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Very_High' , at line 79 column 14.
LabSubNo=3 Date=06/27/2005 Week=8 HIV_RNA=. CD4=40 Triglyc=. Sex=male Race=Black HIVRiskF=heterosexual Randmizn=fAPV _ERROR_=1
_N_=17
NOTE: Invalid numeric data, 'High' , at line 76 column 14.
NOTE: Invalid numeric data, 'High' , at line 78 column 48.
LabSubNo=3 Date=04/06/2006 Week=11 HIV_RNA=. CD4=189 Triglyc=. Sex=male Race=Black HIVRiskF=heterosexual Randmizn=fAPV _ERROR_=1
_N_=18
NOTE: Invalid numeric data, 'Low' , at line 75 column 33.
NOTE: Invalid numeric data, 'Low' , at line 77 column 33.
LabSubNo=3 Date=10/20/2005 Week=9 HIV_RNA=. CD4=193 Triglyc=. Sex=male Race=Black HIVRiskF=heterosexual Randmizn=fAPV _ERROR_=1
_N_=19
NOTE: Invalid numeric data, 'High' , at line 76 column 14.
NOTE: Invalid numeric data, 'Very_High' , at line 79 column 14.
WARNING: Limit set by ERRORS= option reached. Further errors of this type will not be printed.
LabSubNo=3 Date=12/29/2005 Week=10 HIV_RNA=. CD4=76 Triglyc=. Sex=male Race=Black HIVRiskF=heterosexual Randmizn=fAPV _ERROR_=1
_N_=20
NOTE: There were 523 observations read from the data set DHS.CRA2.
NOTE: The data set DHS.CRA1 has 523 observations and 10 variables.
NOTE: DATA statement used (Total process time):
real time 0.11 seconds
cpu time 0.04 seconds


81
82 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
95

data dhs.CRA2;
set dhs.importcrd (keep=LabSubNo Race Randmizn Sex Triglyc Week HIV_RNA HIVRiskF Date CD4);
run;
/* arrange variables */
data dhs.CRA1;
set dhs.CRA2;
if Triglyc <='199' then Triglyc='Low';
else Triglyc='High';
if HIV_RNA <='400' then HIV_RNA='Low';
else if '30000'>= HIV_RNA >='401' then HIV_RNA='High';
else HIV_RNA='Very_High';
run;

[Astounding]

Your numbers shouldn't be in quotes, but that is a side issue.

HIV_RNA is a numeric variable. It can't hold 'Low' as its value. One fix is to assign a new variable the character version:

Length hiv_rnac $ 9;

Then assign values to hiv_rnac based on hiv_rna.

[Satish_Parida]

Code Correction:

data dhs.CRA1(rename=(HIV_RNA1=HIV_RNA Triglyc1=Triglyc));
set dhs.CRA2;
if Triglyc <='199' then Triglyc1='Low';
else Triglyc1='High';
if HIV_RNA <='400' then HIV_RNA1='Low';
else if '30000'>= HIV_RNA >='401' then HIV_RNA1='High';
else HIV_RNA1='Very_High';
drop HIV_RNA Triglyc;
run;

Please let us know if it worked for you.

[Kurt_Bremser]

Since your variables are numeric, you need to create new obes to hold string values:

data dhs.CRA1;
set dhs.CRA2;
if Triglyc <= 199
then Triglyc_c = 'Low';
else Triglyc_c = 'High';
if HIV_RNA <= 400
then HIV_RNA_c = 'Low';
else if HIV_RNA <= 30000
then HIV_RNA_c = 'High';
else HIV_RNA_c = 'Very_High';
run;

or you create custom value formats with ranges and assign them to the numeric variables. SAS statistic procedures can work with formatted values.