robjects.StrVector()#字符
robjects.IntVector()#整数
robjects.FloatVector()#浮点
robjects.complexVector()#复数
robjects.FactorVector()#因子
robjects.BoolVector()#布尔向量
robjects.ListVector()#列表

print(robjects.IntVector([1,2,3])) #[1] 1 2 3
print(robjects.FactorVector(['a','a','b','c']))
  [1] a a b c
  Levels: a b c
print(robjects.FloatVector([1.2,2.3])) # [1] 1.2 2.3
print(robjects.baseenv) # 基本环境空间 <environment: base>
print(robjects.DataFrame({'a':[1,2],'b':[3,4]}))
  a.1L a.2L b.3L b.4L
1    1    2    3    4

testmatrix = robjects.IntVector([1, 2, 3, 4]) 
print(robjects.r['matrix'](testmatrix, nrow = 2)) 
     [,1] [,2]
[1,]    1    3
[2,]    2    4

t4=robjects.r['ls']()
print(t4)