Changing Column Type of Virtual Data Frame in Aster R Limitation - Aster R

Aster R does not support changing the column type in the same manner as it is done in native R. For example, this column type change is not supported in Aster R:

df$col = as.numeric(df$col)

To work around this issue, use one of these methods to change the column type in Aster R:

• Use the ta.transform function:

  ta.transform(df, col = as.numeric(col))

• Use the ta.reify function:

  res <- ta.reify(df, tableName = "new_tablename", colTypes = c(col = "numeric"))

• Use the ta.create function:

  res <- ta.create(df, tableName = "new_tablename", colTypes = c(col = "numeric"))