np.среднее(phDF.ram) повышение eror

#python #pandas Вопрос: phoneinfo=np.array([['galaxy s8','android',64,4,140,'samsung',6],['lumia','windows',32,3,150,'microsoft',6], ['xperia l1','android',16,2,180,'sony',5],['iphone7','ios',128,2,138,'apple',4], ['u ultra','android',64,4,170,'htc',5],['galaxy s5','android',16,2,145,'samsung',5], ['iphone 5s','ios',32,1,112,'apple',4],['moto g5','android',16,3,144.7,'motorola',5], ['pixel','android',128,4,143,'google',5]]) phDF=pd.DataFrame(phoneinfo,index=[1,2,3,4,5,6,7,8,9],columns=['name','os','capacity','ram','weight','company','inch']) np.median(phDF.ram) Сообщение об ошибке: TypeError: ufunc 'true_divide' not supported for the input types, and the…