diff --git a/internal/ml/caterogical.go b/internal/ml/caterogical.go
deleted file mode 100644
index 5c79a5c..0000000
--- a/internal/ml/caterogical.go
+++ /dev/null
@@ -1,51 +0,0 @@
-package ml
-
-import (
-	"runtime"
-	"sync"
-)
-
-// CategoricalToNumericConverter converts passed struct
-// to categorical []float64 format where
-// each field is one element of the returned
-// slice.
-type CategoricalToNumericConverter[T any] struct {
-	// dataSlice is a slice of other entities of the same type
-	// used to convert categorical data to numeric one
-	dataSlice []T
-
-	// convertRoutinesCount represents how many routines will be working
-	// in order to calculate given tree.
-	convertRoutinesCount int
-
-	mu sync.Mutex
-}
-
-// NewCategoricalConverter creates a new instance of the categorical converter
-func NewCategoricalConverter[T any](dataSlice []T) *CategoricalToNumericConverter[T] {
-	return &CategoricalToNumericConverter[T]{
-		dataSlice:            dataSlice,
-		convertRoutinesCount: runtime.NumCPU(), // basically there is no need have more workers than cores.
-	}
-}
-
-// Convert converts given struct fields into []float64 and returns it.
-// It converts all the fields into numeric format.
-func (c *CategoricalToNumericConverter[T]) Convert(obj T) []float64 {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-
-	var wg sync.WaitGroup
-
-	resultChan := make(chan map[string]any)
-
-	go func() {
-		wg.Wait()
-
-		close(resultChan)
-	}()
-
-	for range c.convertRoutinesCount {
-		wg.Add(1)
-	}
-}