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Missing values are represented by empty elements of an array: [null in the case of numeric variables, and an empty string in case of character variables: [1, "MyStudy", "", "DM", null]
The full example of a Dataset-JSON file:
...
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Missing values are represented by empty elements of an array: [null in the case of numeric variables, and an empty string in case of character variables: [1, "MyStudy", "", "DM", null]
The full example of a Dataset-JSON file:
...