[EpiData-list] Epidata XML to R: how to handle labels? - and missing values

epidata-list at lists.umanitoba.ca epidata-list at lists.umanitoba.ca
Tue Jun 14 12:49:36 CDT 2011

When you create value labels in EpiData, you are also restricting the values that a field can hold. So value labels never apply to a continuous variable like systolic blood pressure. Value labels are exclusively for coded values.


On 2011-06-14, at 10:30 AM, epidata-list at lists.umanitoba.ca wrote:

> It seems from the sample.epx file that any data type can have labels. The snippet I included was from the sample file and was for numeric values. So, it seems you could have a field for systolic blood pressure and a label for 160 that says "a bit too high".  You can't do this in R (except by using attr() but that has limitations). 

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