[WinBUGS] 常見的錯誤訊息整理..

Checking Model

• Missing closing square bracket:
  
• Expected right parenthesis:
  
• Invalid or unexpected token scanned: Syntax(check that you have as many left as right brackets and parentheses and that you've given all distributions the appropriate number of parameters)
  
• Expected a comma:
  
• Unknown type of probability distribution:
  

Loading data

• Array index is greater than array upper bound for mu: You've read in less lines of data mu[] (entries in a vector) than the program expects.
  
• Expected a closing square bracket: Columns in a matrix must have a header which includes [] (e.g. "block")
  
• Expected key word end: Matrix must end with the word "END" on one line.
  
• Expected variable name: You're reading in data that you haven't defined in the model
  

Compile

• Multiple definitions of node mu[1]: You might have defined your data (i.e. what you read in) in your model; logical nodes (i.e. those on the lefthand side of a "<-" cannot also be data.
  
• Logical expression contains too many operands: 有遇到過一次, 在進行regression的interaction時, 似乎是運算符號太多導致這個階段不給過, 想辦法減少就OK了!!
  

Gen.inits

• Shape parameter (r) of gamma too small: Make your gamma priors less diffuse. (e.g. try gamma(1,0.1))
  

Running model

• TRAP (undefined real result):
  

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參考資料
http://www.uwyo.edu/oglelab/HBWorkshop/HintsAndTips.pdf