机器学习入门KNN的案例

age,workclass,final_weight,education,education_num,marital_status,occupation,relationship,race,sex,capital_gain,capital_loss,hours_per_week,native_country,salary 39,State-gov,77516,Bachelors,13,Never-married,Adm-clerical,Not-in-family,White,Male,2174,0,40,United-States,<=50K 50,Self-emp-not-inc,83311,Bachelors,13,Married-civ-spouse,Exec-managerial,Husband,White,Male,0,0,13,United-States,<=50K 38,Private,215646,HS-grad,9,Divorced,Handlers-cleaners,Not-in-family,White,Male,0,0,40,United-States,<=50K 53,Private,234721,11th,7,Married-civ-spouse,Handlers-cleaners,Husband,Black,Male,0,0,40,United-States,<=50K 28,Private,338409,Bachelors,13,Married-civ-spouse,Prof-specialty,Wife,Black,Female,0,0,40,Cuba,<=50K 37,Private,284582,Masters,14,Married-civ-spouse,Exec-managerial,Wife,White,Female,0,0,40,United-States,<=50K 49,Private,160187,9th,5,Married-spouse-absent,Other-service,Not-in-family,Black,Female,0,0,16,Jamaica,<=50K 52,Self-emp-not-inc,209642,HS-grad,9,Married-civ-spouse,Exec-managerial,Husband,White,Male,0,0,45,United-States,>50K 31,Private,45781,Masters,14,Never-married,Prof-specialty,Not-in-family,White,Female,14084,0,50,United-States,>50K 42,Private,159449,Bachelors,13,Married-civ-spouse,Exec-managerial,Husband,White,Male,5178,0,40,United-States,>50K 37,Private,280464,Some-college,10,Married-civ-spouse,Exec-managerial,Husband,Black,Male,0,0,80,United-States,>50K 30,State-gov,141297,Bachelors,13,Married-civ-spouse,Prof-specialty,Husband,Asian-Pac-Islander,Male,0,0,40,India,>50K 23,Private,122272,Bachelors,13,Never-married,Adm-clerical,Own-child,White,Female,0,0,30,United-States,<=50K 32,Private,205019,Assoc-acdm,12,Never-married,Sales,Not-in-family,Black,Male,0,0,50,United-States,<=50K 40,Private,121772,Assoc-voc,11,Married-civ-spouse,Craft-repair,Husband,Asian-Pac-Islander,Male,0,0,40,?,>50K 34,Private,245487,7th-8th,4,Married-civ-spouse,Transport-moving,Husband,Amer-Indian-Eskimo,Male,0,0,45,Mexico,<=50K 25,Self-emp-not-inc,176756,HS-grad,9,Never-married,Farming-fishing,Own-child,White,Male,0,0,35,United-States,<=50K 32,Private,186824,HS-grad,9,Never-married,Machine-op-inspct,Unmarried,White,Male,0,0,40,United-States,<=50K 38,Private,28887,11th,7,Married-civ-spouse,Sales,Husband,White,Male,0,0,50,United-States,<=50K 43,Self-emp-not-inc,292175,Masters,14,Divorced,Exec-managerial,Unmarried,White,Female,0,0,45,United-States,>50K 40,Private,193524,Doctorate,16,Married-civ-spouse,Prof-specialty,Husband,White,Male,0,0,60,United-States,>50K 54,Private,302146,HS-grad,9,Separated,Other-service,Unmarried,Black,Female,0,0,20,United-States,<=50K 35,Federal-gov,76845,9th,5,Married-civ-spouse,Farming-fishing,Husband,Black,Male,0,0,40,United-States,<=50K 43,Private,117037,11th,7,Married-civ-spouse,Transport-moving,Husband,White,Male,0,2042,40,United-States,<=50K 59,Private,109015,HS-grad,9,Divorced,Tech-support,Unmarried,White,Female,0,0,40,United-States,<=50K 56,Local-gov,216851,Bachelors,13,Married-civ-spouse,Tech-support,Husband,White,Male,0,0,40,United-States,>50K 19,Private,168294,HS-grad,9,Never-married,Craft-repair,Own-child,White,Male,0,0,40,United-States,<=50K 54,?,180211,Some-college,10,Married-civ-spouse,?,Husband,Asian-Pac-Islander,Male,0,0,60,South,>50K 39,Private,367260,HS-grad,9,Divorced,Exec-managerial,Not-in-family,White,Male,0,0,80,United-States,<=50K 49,Private,193366,HS-grad,9,Married-civ-spouse,Craft-repair,Husband,White,Male,0,0,40,United-States,<=50K 23,Local-gov,190709,Assoc-acdm,12,Never-married,Protective-serv,Not-in-family,White,Male,0,0,52,United-States,<=50K 20,Private,266015,Some-college,10,Never-married,Sales,Own-child,Black,Male,0,0,44,United-States,<=50K 45,Private,386940,Bachelors,13,Divorced,Exec-managerial,Own-child,White,Male,0,1408,40,United-States,<=50K 30,Federal-gov,59951,Some-college,10,Married-civ-spouse,Adm-clerical,Own-child,White,Male,0,0,40,United-States,<=50K 22,State-gov,311512,Some-college,10,Married-civ-spouse,Other-service,Husband,Black,Male,0,0,15,United-States,<=50K 48,Private,242406,11th,7,Never-married,Machine-op-inspct,Unmarried,White,Male,0,0,40,Puerto-Rico,<=50K 21,Private,197200,Some-college,10,Never-married,Machine-op-inspct,Own-child,White,Male,0,0,40,United-States,<=50K 19,Private,544091,HS-grad,9,Married-AF-spouse,Adm-clerical,Wife,White,Female,0,0,25,United-States,<=50K 31,Private,84154,Some-college,10,Married-civ-spouse,Sales,Husband,White,Male,0,0,38,?,>50K 48,Self-emp-not-inc,265477,Assoc-acdm,12,Married-civ-spouse,Prof-specialty,Husband,White,Male,0,0,40,United-States,<=50K 31,Private,507875,9th,5,Married-civ-spouse,Machine-op-inspct,Husband,White,Male,0,0,43,United-States,<=50K 53,Self-emp-not-inc,88506,Bachelors,13,Married-civ-spouse,Prof-specialty,Husband,White,Male,0,0,40,United-States,<=50K 24,Private,172987,Bachelors,13,Married-civ-spouse,Tech-support,Husband,White,Male,0,0,50,United-States,<=50K 49,Private,94638,HS-grad,9,Separated,Adm-clerical,Unmarried,White,Female,0,0,40,United-States,<=50K 25,Private,289980,HS-grad,9,Never-married,Handlers-cleaners,Not-in-family,White,Male,0,0,35,United-States,<=50K 57,Federal-gov,337895,Bachelors,13,Married-civ-spouse,Prof-specialty,Husband,Black,Male,0,0,40,United-States,>50K 53,Private,144361,HS-grad,9,Married-civ-spouse,Machine-op-inspct,Husband,White,Male,0,0,38,United-States,<=50K 44,Private,128354,Masters,14,Divorced,Exec-managerial,Unmarried,White,Female,0,0,40,United-States,<=50K 41,State-gov,101603,Assoc-voc,11,Married-civ-spouse,Craft-repair,Husband,White,Male,0,0,40,United-States,<=50K 29,Private,271466,Assoc-voc,11,Never-married,Prof-specialty,Not-in-family,White,Male,0,0,43,United-States,<=50K 25,Private,32275,Some-college,10,Married-civ-spouse,Exec-managerial,Wife,Other,Female,0,0,40,United-States,<=50K 18,Private,226956,HS-grad,9,Never-married,Other-service,Own-child,White,Female,0,0,30,?,<=50K 47,Private,51835,Prof-school,15,Married-civ-spouse,Prof-specialty,Wife,White,Female,0,1902,60,Honduras,>50K 50,Federal-gov,251585,Bachelors,13,Divorced,Exec-managerial,Not-in-family,White,Male,0,0,55,United-States,>50K 47,Self-emp-inc,109832,HS-grad,9,Divorced,Exec-managerial,Not-in-family,White,Male,0,0,60,United-States,<=50K 43,Private,237993,Some-college,10,Married-civ-spouse,Tech-support,Husband,White,Male,0,0,40,United-States,>50K 46,Private,216666,5th-6th,3,Married-civ-spouse,Machine-op-inspct,Husband,White,Male,0,0,40,Mexico,<=50K 35,Private,56352,Assoc-voc,11,Married-civ-spouse,Other-service,Husband,White,Male,0,0,40,Puerto-Rico,<=50K 41,Private,147372,HS-grad,9,Married-civ-spouse,Adm-clerical,Husband,White,Male,0,0,48,United-States,<=50K 30,Private,188146,HS-grad,9,Married-civ-spouse,Machine-op-inspct,Husband,White,Male,5013,0,40,United-States,<=50K 30,Private,59496,Bachelors,13,Married-civ-spouse,Sales,Husband,White,Male,2407,0,40,United-States,<=50K 32,?,293936,7th-8th,4,Married-spouse-absent,?,Not-in-family,White,Male,0,0,40,?,<=50K 48,Private,149640,HS-grad,9,Married-civ-spouse,Transport-moving,Husband,White,Male,0,0,40,United-States,<=50K 42,Private,116632,Doctorate,16,Married-civ-spouse,Prof-specialty,Husband,White,Male,0,0,45,United-States,>50K 29,Private,105598,Some-college,10,Divorced,Tech-support,Not-in-family,White,Male,0,0,58,United-States,<=50K 36,Private,155537,HS-grad,9,Married-civ-spouse,Craft-repair,Husband,White,Male,0,0,40,United-States,<=50K 28,Private,183175,Some-college,10,Divorced,Adm-clerical,Not-in-family,White,Female,0,0,40,United-States,<=50K 53,Private,169846,HS-grad,9,Married-civ-spouse,Adm-clerical,Wife,White,Female,0,0,40,United-States,>50K 49,Self-emp-inc,191681,Some-college,10,Married-civ-spouse,Exec-managerial,Husband,White,Male,0,0,50,United-States,>50K 25,?,200681,Some-college,10,Never-married,?,Own-child,White,Male,0,0,40,United-States,<=50K 19,Private,101509,Some-college,10,Never-married,Prof-specialty,Own-child,White,Male,0,0,32,United-States,<=50K 31,Private,309974,Bachelors,13,Separated,Sales,Own-child,Black,Female,0,0,40,United-States,<=50K 29,Self-emp-not-inc,162298,Bachelors,13,Married-civ-