search for: mispecifi

Displaying 2 results from an estimated 2 matches for "mispecifi".

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2003 Feb 10
3
non-SQL sqlQuery error
...gives this: 5: stop("not all specified columns exist") 4: "[.data.frame"(data, , ) 3: data[, ] 2: sqlGetResults(channel, errors = errors, ...) 1: sqlQuery(con.object, " ... long query here ... ") The puzzling thing is that the error does not seem to be like the usual mispecified-SQL type that I normally get when using sqlQuery(). I am not sure how to debug this problem, since I can't really see what's going on in the sqlQuery() internally. My query includes a "SUM(ColumnName1) GROUP BY ColumnName2" construct, and from trial and error, it seems that...
2009 Aug 21
0
data layout for crossed factors w/interaction in linear mix models
...rom Y = XBeta +Zb. That is, using the same first two columns as above, but substituting 1020 columns (10 for ai's, 10 for bj's and 100 for abij's) for the last three columns. I get the message: "Error in eval(predvars, data, env) : invalid envir argument" Is my data layout mispecified? Do I need to input initial values for the random components in order to get the REML estimates? I lmer valid for unbalanced designs? Any help would be greatly appreciated. Rafael Diaz California State University Sacramento Math and Stats