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seafan.go
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seafan.go
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// Package seafan is a set of tools for building DNN models. The build engine is gorgonia (https://pkg.go.dev/gorgonia.org/gorgonia).
//
// Seafan features:
//
// - A data pipeline based on chutils (https://github.com/invertedv/chutils) to access files and ClickHouse tables.
// - Point-and-shoot specification of the data
// - Simple specification of one-hot features
//
// - A wrapper around gorgonia that meshes to the pipeline.
// - Simple specification of models, including embeddings
// - A fit method with optional early stopping and callbacks
// - Saving and loading models
//
// - Model diagnostics for categorical targets.
// - KS plots
// - Decile plots
//
// - Utilities.
// - Plotting wrapper for plotly (https://github.com/MetalBlueberry/go-plotly) for xy plots.
// - Numeric struct for (x,y) data and plotting and descriptive statistics.
package seafan
import "fmt"
// Verbose controls amount of printing.
var Verbose = true
// Browser is the browser to use for plotting.
var Browser = "firefox"
type SeaError int
const (
ErrPipe SeaError = 0 + iota
ErrData
ErrFields
ErrGData
ErrChData
ErrModSpec
ErrNNModel
ErrDiags
ErrVecData
)
func (seaErr SeaError) Error() string {
switch seaErr {
case ErrPipe:
return "Pipeline error"
case ErrData:
return "data error"
case ErrFields:
return "Fields error"
case ErrGData:
return "GData error"
case ErrChData:
return "ChData"
case ErrModSpec:
return "ModSpec error"
case ErrNNModel:
return "NNModel error"
case ErrDiags:
return "model diagnostics error"
case ErrVecData:
return "VecData error"
}
return "error"
}
func Wrapper(e error, text string) error {
return fmt.Errorf("%v: %w", text, e)
}