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Catboost Go Wrapper

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machine-learning boosting-algorithms golang

catboost-go's Introduction

CatBoost Wrapper for Go

Simple wrapper of CatBoost C library for prediction

Installation

CatBoost library is assumed to be installed and all its includes and library files are assumed to be found in corresponding paths. One way to do it is using environment variables:

git clone https://github.com/catboost/catboost.git
cd catboost/catboost/libs/model_interface && ../../../ya make -r .
export CATBOOST_DIR=$(pwd)
export C_INCLUDE_PATH=$CATBOOST_DIR:$C_INCLUDE_PATH
export LIBRARY_PATH=$CATBOOST_DIR:$LIBRARY_PATH
export LD_LIBRARY_PATH=$CATBOOST_DIR:$LD_LIBRARY_PATH

The other way is to put compiled library files and include files to default search diretories (/usr/local/lib, /usr/local/include). If everything above is properly configured then a simple go get command will do the trick:

go get -u github.com/ma3axaka/catboost-go

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nickolaynesterenko kokizzu lukangping tostrivetoseek oscar-davids rikanishu mikekonan vladbandurin shpak86

catboost-go's Issues

Issue with Running catboost-go on Windows

Description:
I am encountering an issue when trying to run catboost-go on a Windows platform. It appears that the Model struct and the LoadFullModelFromFile method are undefined in the catboost-go library.

Case Scenario:

I have developed a machine learning model using CatBoost in Python.
I am trying to use this model with the catboost-go library on a Windows machine.
Error:
When attempting to execute the code, I get the following error:

# github.com/ma3axaka/catboost-go
classifier.go:7:9: undefined: Model
classifier.go:16:16: undefined: LoadFullModelFromFile

Operating System:
Windows

Steps to Reproduce:

Import the catboost-go library.
Load a CatBoost model using the LoadFullModelFromFile method.
Attempt to execute predictions.
Expected Behavior:
I expected to be able to load the model and make predictions using the catboost-go library.

Actual Behavior:
I encountered the "undefined: Model" and "undefined: LoadFullModelFromFile" errors.

Additional Information:

I am running my code on a Windows machine.
I have checked the version of the catboost-go library, and it is up to date.
Example Code:


package main

import (
    "fmt"
    "github.com/ma3axaka/catboost-go"
)

func main() {
    model, _ := catboost.LoadBinaryClassifierFromFile("model.cbm")
    numbers := make([][]float32, 0)
    categories := [][]string{{"HOLD", "BUY", "HOLD"}}
    prob, _ := model.PredictProba(numbers, 0, categories, 3)
    fmt.Println(prob)
}

Note:
I would appreciate any guidance or assistance on how to resolve this issue and successfully run catboost-go on Windows.

Thnx!

panic: runtime error: cgo argument has Go pointer to Go pointer

My code

  1 package main
  2
  3 import "fmt"
  4 import "github.com/ma3axaka/catboost-go"
  5 func main() {
  6     model, _:= catboost.LoadBinaryClassifierFromFile("catboost_demo.cbm")
  7      fmt.Println(err)
  8     numbers := [][]float32{{2.0, 3.0, 5.0, 7.0}}
  9     categories := [][]string{{"a", "b"}}
 10    prob, _ := model.PredictProba(numbers,4, categories,2)
 11    fmt.Println(prob)
 12 }

Here is the exception:

panic: runtime error: cgo argument has Go pointer to Go pointer

goroutine 1 [running]:
github.com/ma3axaka/catboost-go.(*Model).CalcModelPrediction.func2(0xc000010028, 0x1, 0xc000010038, 0x1, 0x1, 0x4, 0xc000010040, 0x1, 0x1, 0x2, ...)
	/home/phuongdv/gows/src/github.com/ma3axaka/catboost-go/model.go:99 +0xaf
github.com/ma3axaka/catboost-go.(*Model).CalcModelPrediction(0xc000010028, 0xc00009ff70, 0x1, 0x1, 0x4, 0xc00009ff58, 0x1, 0x1, 0x2, 0x0, ...)
	/home/phuongdv/gows/src/github.com/ma3axaka/catboost-go/model.go:99 +0x285
github.com/ma3axaka/catboost-go.(*BinaryClassifer).PredictProba(0xc00009ff30, 0xc00009ff70, 0x1, 0x1, 0x4, 0xc00009ff58, 0x1, 0x1, 0x2, 0x4a78c0, ...)
	/home/phuongdv/gows/src/github.com/ma3axaka/catboost-go/classifier.go:25 +0xab
main.main()

bourbaki / catboost-go Goto Github PK

catboost-go's Introduction

CatBoost Wrapper for Go

Installation

catboost-go's People

Contributors

Stargazers

Watchers

Forkers

catboost-go's Issues

Issue with Running catboost-go on Windows

panic: runtime error: cgo argument has Go pointer to Go pointer

Can you publish an example or tutorial of usage?

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