class_docstr: This class defines tests for the to_matrix() and to_matrix_with_info() utility
  functions.
docstr: Make sure that if we pass a Pandas dataframe with no categorical features,
  we get back the matrix we expect.
docstr_tok: ["Make","sure","that","if","we","pass","a","Pandas","dataframe","with","no","categorical","features",",","we","get","back","the","matrix","we","expect","."]
code: def testPandasToMatrixNoCategorical(self):
      """
      Make sure that if we pass a Pandas dataframe with no categorical features,
      we get back the matrix we expect.
      """
  
imports: import unittest
  import pandas
  import numpy
  from mlpack.matrix_utils import to_matrix
  from mlpack.matrix_utils import to_matrix_with_info
label_desc: Use image node_id 7 for calling the TestToMatrix obj's underlying member method code with example usage: obj.testPandasToMatrixNoCategorical() without return types