Scatterplot of median value against crime Other Charles River 10 20 30 40 50 medv 0 20 40 60 80 crim\fFeedback X Boston Dataset X Academic Requirements X M Inbox - cforem4@students.tows X + X G O 8 https://www.cs.toronto.edu/~delve/data/boston/bostonDetail.html 90% ED E This dataset contains information collected by the U.S Census Service concerning housing in the area of Boston Mass. It was obtained from the StatLib archive (http:/lib.stat.cmu.edu/datasets/boston), and has been used extensively throughout the literature to benchmark algorithms. However, these comparisons were primarily done outside of Delve and are thus somewhat suspect. The dataset is small in size with only 506 cases. The data was originally published by Harrison, D. and Rubinfeld, D.L. 'Hedonic prices and the demand for clean air', J. Environ. Economics & Management, vol.5, 81-102, 1978. Dataset Naming The name for this dataset is simply boston. It has two prototasks: nox, in which the nitrous oxide level is to be predicted; and price, in which the median value of a home is to be predicted Miscellaneous Details Origin The origin of the boston housing data is Natural. Usage This dataset may be used for Assessment. Number of Cases The dataset contains a total of 506 cases. Order The order of the cases is mysterious. -Variables There are 14 attributes in each case of the dataset. They are: 1. CRIM - per capita crime rate by town 2. ZN - proportion of residential land zoned for lots over 25,000 sq.ft. 3. INDUS - proportion of non-retail business acres per town. 4. CHAS - Charles River dummy variable (1 if tract bounds river; 0 otherwise) 5. NOX - nitric oxides concentration (parts per 10 million) 6. RM - average number of rooms per dwelling 7. AGE - proportion of owner-occupied units built prior to 1940 8. DIS - weighted distances to five Boston employment centres 9. RAD - index of accessibility to radial highways 10. TAX - full-value property-tax rate per $10,000 11. PTRATIO - pupil-teacher ratio by town 12. B - 1000(BK - 0.63) 2 where Bk is the proportion of blacks by town 13. LSTAT - % lower status of the population 14. MEDV - Median value of owner-occupied homes in $1000's Type here to search O W R 1:18 PM 65 F Ox 11/10/2022R RStudio X File Edit Code View Plots Session Build Debug Profile Tools Help . .HE| | Go to file/function 8: . Adding * R Project: (None) . Source Environment History Connections Tutorial | Import . | 178 MiB - =List . C. Console Terminal x Background Jobs x R . Global Environment * R R4.2.1 . ~/ ptratio 1206. 45 12288 1636.0 model_step_s List of 13 1 a dis 1448. 94 12530 1645.9 Modela List of 12 a rm 1963. 66 13045 1666.3 1 Modelb List of 12 - 1stat 2723. 48 13805 1695.0 summary (model_full) myData 20 obs. of 2 variables myQ11 60 obs. of 3 variables call: Im(formula = medv ~ ., data = Boston) myQ13 40 obs. of 3 variables myQ15 40 obs. of 3 variables Residuals : Om20 50 ohs of 5 variables Min 1Q Median 3Q Max -15. 595 -2. 730 -0. 518 1. 777 26. 199 Files Plots Packages Help Viewer Presentation Zoom Export . coefficients : Estimate Std. Error t value Pr (>|t|) (Intercept) 3. 646e+01 5. 103e+00 7. 144 3. 28e-12 * * * crim -1. 080e-01 3. 286e-02 - 3. 287 0. 001087 * * zn 4. 642e-02 1. 373e-02 3. 382 0. 000778 * * * indus 2. 056e-02 6. 150e-02 0. 334 0. 738288 chas 2. 687 e+00 8. 616e-01 3. 118 0. 001925 * * nox -1. 777e+01 3. 820e+00 -4. 651 4. 25e-06 ** * rm 3. 810e+00 4. 179e-01 9. 116 1:32 PM Type here to search O R W 65OF 11/10/2022