Invalid psu variable name

[Cathryn Knight]

Hello,

I am fairly new to stata and am just beginning to analyse some secondary data. I am setting up the sampling design using:

svyset SPTN00 [pwt=FOVWT2], strata(PTTYPE2) fpc(NH2)
pweight: FOVWT2
VCE: linearized
Single unit: missing
Strata 1: PTTYPE2
SU 1: SPTN00
FPC 1: NH2

noi svydes
Survey: Describing stage 1 sampling units
pweight: FOVWT2
VCE: linearized
Single unit: missing
Strata 1: PTTYPE2
SU 1: SPTN00

However, the following error message is being shown:

SPTN00 [pwt=FOVWT2] invalid psu variable name

Any suggestions as to why this might be happening would be really helpful.

Thanks.

[Clyde Schechter]

Are you sure you have a variable named SPTN00? Remember that Stata variable names are case-sensitive.

What happens if you run

des SPTN00

[Marcos Almeida]

Just as a side note, after Clyde's insightful advice: please make sure there is a blank space between the psu and the pweights.

[Mitch Lingo]

Interested in knowing if you ever found an answer? Having a similar issue this afternoon with using the ELS:2002 dataset.