Cubert | efficient batch computation engine for complex analysis
kandi X-RAY | Cubert Summary
kandi X-RAY | Cubert Summary
Cubert script is a physical script where we explicitly define the operators at the Mappers, Reducers and Combiners for the different jobs. Following is an example of the Word Count problem written in cubert script.
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Top functions reviewed by kandi - BETA
- Handles JOIN
- Creates a block schema for reduce side joins
- Checks the pre conditions
- Compares two Datas schemas
- Show the groovy script
- Dumps the text to output
- Extracts the data to the output file
- Initialize output schema using input properties
- Merges two avro schemas
- Sets the input
- Rewrite FactBlock generation path
- Merge all dictionaries
- Rewrites all files in the given plan
- Sets the block s columns
- Serialize the object
- Create post condition
- Sets the default input
- Validate the block schema
- Perform shuffle
- Visits a JSON operator
- Get the post condition
- Get next tuple
- Main method
- Get the post condition list
- Called when the program exits
- Deserialize an object
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Cubert Examples and Code Snippets
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QUESTION
hopefully a relatively easy one for those more experienced than me!
Trying to perform a Box-Cox transformation using the following code:
...ANSWER
Answered 2020-May-13 at 02:24I thought 'x' was being defined in line 3?
Line 3 is lambda<-with(bc, x[which.max(y)])
. It doesn't define x
, it defines lambda
. It does use x
, which it looks for within the bc
environment. If you're using boxcox()
from the MASS
package, bc
should indeed include x
and y
components, so bc$x
shouldn't give you the same error message. I'd expect an error about the replacement lengths. Because...
bc$x
are the potential lambda values tried by boxcox
- you're using the default seq(-2, 2, 1/10)
, and it would be an unlikely coincidence if your data had a multiple of 41 rows needed to not give an error when assigning 41 values to a new column.
Line 3 picks out the lambda value that maximizes the likelihood, so you shouldn't need the rest of the values in bc
ever again. I'd expect you to use that lambda
values to transform your response variable, as that's what the Box Cox transformation is for. ((x^lambda)-1/lambda)
doesn't make any statistical or programmatic sense. Use this instead:
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