HTML links in SAS

[dlsfetcu]

I would be very grateful for anyone who can help me understand why I'm getting this error

ERROR: There are no valid observations. Could be caused by SUMVAR= or FREQ= variable.

GOPTIONS RESET = ALL;

ODS HTML FILE="C:\SASDATA\carsM.HTM";

PROC MEANS DATA= "C:\SASDATA\cars" MAXDEC=2 N MEAN STD;

VAR brand citympg;

WHERE brand="mazda";

TITLE 'Summary for GROUP A';

RUN;

ODS HTML FILE="C:\SASDATA\carsT.HTM";

PROC MEANS DATA= "C:\SASDATA\cars" MAXDEC=2 N MEAN STD;

VAR brand citympg;

WHERE brand="toyota";

TITLE 'Summary for GROUP B';

RUN;

ODS HTML FILE="C:\SASDATA\carsH.HTM";

PROC MEANS DATA= "C:\SASDATA\cars" MAXDEC=2 N MEAN STD;

VAR brand citympg;

WHERE brand="honda";

TITLE 'Summary for GROUP C';

RUN;

*.......................................CREATE THE BARCHART;

DATA BARCHART;SET "C:\SASDATA\SOMEDATA";

LENGTH HTMLLINK $40;

IF brand="mazda" THEN HTMLLINK='HREF="carsM.HTM"';

IF brand="toyota" THEN HTMLLINK='HREF="carsT.HTM"';

IF brand="honda" THEN HTMLLINK='HREF="carsH.HTM"';

ODS HTML FILE="C:\SASDATA\GCHART.HTM" GPATH="C:\SASDATA\";

ODS LISTING CLOSE;

PROC GCHART;

      HBAR brand/ HTML=HTMLLINK;

   TITLE 'Summary information for each GP.';

RUN; QUIT;

ODS HTML CLOSE;

ODS LISTING;

[Reeza · Accepted solution]

WHERE brand="toyota";

Check the case of your brand, it needs to match exactly.

Typically you can try and make everything upper or lower case.

where upcase(brand)="TOYOTA";

And for the rest of the brand= comparisons.