Drawing of metabolic process matrix diagram and phylogenetic tree diagram
     
    
    Usage
    draw_step_tree(infomatrix, Matrix, stepTypes, contentTypes)
 
    
    Arguments
    - infomatrix
- Matrix generated using the words2steps function 
- Matrix
- The matrix about the steps or transformation or the databases and tools of the metabolic reconstruction. 
- stepTypes
- Grouping information for metabolic processes 
- contentTypes
- Grouping information for metabolic content 
 
    
    
    Examples
    p1 <- draw_step_tree(matrixProcess, stepsMatrix, stepTypes, contentTypes)