如何使用已建立的模型来预测用户输入的新数据的结果？

Question

我已经用Python用高斯朴素贝叶斯建立了一个模型。现在随着模型的建立，我想输入一个用户输入的数据，然后检查模型的结果。我该怎么做？ 下面是模型的代码

# Importing the libraries 
# Required Python Machine learning Packages
import pandas as pd
import numpy as np
# For preprocessing the data
from sklearn.preprocessing import Imputer
from sklearn import preprocessing
# To split the dataset into train and test datasets
from sklearn.cross_validation import train_test_split
# To model the Gaussian Navie Bayes classifier
from sklearn.naive_bayes import GaussianNB
# To calculate the accuracy score of the model
from sklearn.metrics import accuracy_score

# importing the data
adult_df = pd.read_csv('adult.data.txt',
                   header = None, delimiter=' *, *', engine='python')

# adding header to the data for ease of processing
adult_df.columns = ['age', 'workclass', 'fnlwgt', 'education', 'education_num',
                'marital_status', 'occupation', 'relationship',
                'race', 'sex', 'capital_gain', 'capital_loss',
                'hours_per_week', 'native_country', 'income']

# looking for any null values
adult_df.isnull().sum()

#looking for ? value
for value in ['workclass', 'education',
      'marital_status', 'occupation',
      'relationship','race', 'sex',
      'native_country', 'income']:
print (value,":", sum(adult_df[value] == '?'))


adult_df_rev = adult_df

for value in ['workclass', 'education', 'marital_status', 'occupation', 
              'relationship','race', 'sex','native_country', 'income']:


 adult_df_rev[value].replace(['?'], [adult_df_rev.describe(include='all')[value][2]],inplace=True)`enter code here`



# encoding all data for consistency - label encoders

le = preprocessing.LabelEncoder()
workclass_cat = le.fit_transform(adult_df.workclass)
education_cat = le.fit_transform(adult_df.education)
marital_cat   = le.fit_transform(adult_df.marital_status)
occupation_cat = le.fit_transform(adult_df.occupation)
relationship_cat = le.fit_transform(adult_df.relationship)
race_cat = le.fit_transform(adult_df.race)
sex_cat = le.fit_transform(adult_df.sex)
native_country_cat = le.fit_transform(adult_df.native_country)

#initialize the encoded categorical columns
adult_df_rev['workclass_cat'] = workclass_cat
adult_df_rev['education_cat'] = education_cat
adult_df_rev['marital_cat'] = marital_cat
adult_df_rev['occupation_cat'] = occupation_cat
adult_df_rev['relationship_cat'] = relationship_cat
adult_df_rev['race_cat'] = race_cat
adult_df_rev['sex_cat'] = sex_cat
adult_df_rev['native_country_cat'] = native_country_cat

#drop the old categorical columns from dataframe
dummy_fields = ['workclass', 'education', 'marital_status', 
              'occupation', 'relationship', 'race',
              'sex', 'native_country']
adult_df_rev = adult_df_rev.drop(dummy_fields, axis = 1)

# re-indexing the columns

adult_df_rev = adult_df_rev.reindex_axis(['age', 'workclass_cat', 'fnlwgt', 'education_cat',
                                'education_num', 'marital_cat', 'occupation_cat',
                                'relationship_cat', 'race_cat', 'sex_cat', 'capital_gain',
                                'capital_loss', 'hours_per_week', 'native_country_cat', 
                                'income'], axis= 1)

adult_df_rev.head(1)

#standardiation of data

num_features = ['age', 'workclass_cat', 'fnlwgt', 'education_cat', 'education_num',
            'marital_cat', 'occupation_cat', 'relationship_cat', 'race_cat',
            'sex_cat', 'capital_gain', 'capital_loss', 'hours_per_week',
            'native_country_cat']

scaled_features = {}
for each in num_features:
mean, std = adult_df_rev[each].mean(), adult_df_rev[each].std()
scaled_features[each] = [mean, std]
adult_df_rev.loc[:, each] = (adult_df_rev[each] - mean)/std

#data slicing

features = adult_df_rev.values[:,:14]
target = adult_df_rev.values[:,14]
features_train, features_test, target_train, target_test = 
train_test_split(features,

target, test_size = 0.33, random_state = 10)

clf = GaussianNB()
clf.fit(features_train, target_train)
target_pred = clf.predict(features_test)

以下是一些数据集

37, Federal-gov, 29054, Some-college, 10, Married-civ-spouse, Adm-clerical, Husband, White, Male, 0, 0, 42, United-States, >50K
34, Private, 304030, HS-grad, 9, Married-civ-spouse, Adm-clerical, Husband, Black, Male, 0, 0, 40, United-States, <=50K
41, Self-emp-not-inc, 143129, Bachelors, 13, Divorced, Exec-managerial, Not-in-family, White, Female, 0, 0, 40, United-States, <=50K
53, ?, 135105, Bachelors, 13, Divorced, ?, Not-in-family, White, Female, 0, 0, 50, United-States, <=50K
31, Private, 99928, Masters, 14, Married-civ-spouse, Prof-specialty, Wife, White, Female, 0, 0, 50, United-States, <=50K
58, State-gov, 109567, Doctorate, 16, Married-civ-spouse, Prof-specialty, Husband, White, Male, 0, 0, 1, United-States, >50K
38, Private, 155222, Some-college, 10, Divorced, Machine-op-inspct, Not-in-family, Black, Female, 0, 0, 28, United-States, <=50K
24, Private, 159567, Some-college, 10, Married-civ-spouse, Machine-op-inspct, Husband, White, Male, 0, 0, 40, United-States, <=50K
41, Local-gov, 523910, Bachelors, 13, Married-civ-spouse, Craft-repair, Husband, Black, Male, 0, 0, 40, United-States, <=50K

现在假设我想预测并检查输入的输出，比如

[42, Local-gov, 254817, Some-college, 10, Never-married, Prof-specialty, Not-in-family, White, Female, 0, 1340, 40, United-States]

它应该显示工资为<；=50K或>；50K时的输出

我现在该怎么做？你知道吗