Question: changing pronumeral results in different results

When i use the pronumeral thetac (using greek characters) I initially get numeric data reported, but later in the script i get the pronemeral literally repeated (as though there is no value defined for this pronumeral).

This does not happen for thetahs (using greek characters), where I always get numeric results (through the entire script).

See the following script:

I re-wrote the script, replacing thetac with T, and I get the results I expect (numeric data always). This is shown in the script, sample 2:

Can anyone tell me why thetac and T result in different behaviour?


Thanks very much


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