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Allowed characters

We recommend to use only alphanumeric characters and the underscore “_” character in the strings of your data set.

Unfortunately, special characters such as spaces ” “, stars “*”, parentheses “(“, brackets “[“, dashes “-“, dots “.” and slashes “/” are not supported in:

  • the headers,

  • the strings in categorical covariate columns.

Please be careful that if your data set includes unsupported characters, the error will only be detected and displayed when loading a saved project (and not when creating and saving the project).

On the use of “.”

The “.” can be used in almost all the lines of the data set but has several meaning depending on the context. The following table summarizes the use of it.

Type of column

Not allowed

Considered as a regular string  

Considered as 

Not considered

ID

X

OCCASION (OCC)

X

TIME

X

DATE/DAT1/DAT2/DAT3

X

OBSERVATION (Y)

On a response line

On a dose line

OBSERVATION ID (YTYPE)

On a response line

On a dose line (not read)

CENSORED (CENS)

0

LIMIT

 -Inf if CENS =1 , +Inf if CENS = -1

AMOUNT (AMT)

On a dose line

On a response line (not read)

ADMINISTRATION ID (ADM)

On a dose line

 On a response line (not read)

STEADY STATE (SS)

0

ADDITIONAL DOSE (ADDL)

0

INTERDOSE INTERVAL (II)

0

CONTINUOUS COVARIATE (COV)

Previously defined value of the COV (in the ID/OCC)

CATEGORICAL COVARIATE (CAT)

X

REGRESSOR

Interpolation

EVENT ID (EVID)

 X

IGNORED OBSERVATION (MDV)

 X

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