CKM
Coleman, Katz, Menzel "Innovation among Physicians" dataset
Bundled with spatialprobit · exported, loads via data()
Class
data.frame
Dimensions
246 × 13
Missing
0
Format
rda · gzip
version 2 · 7.4 KB
File
data/CKM.RData
Fingerprint
f085319c
Format documented
Yes
Source
The data set had been reproduced from the now invalid `http://moreno.ss.uci.edu/data.html#ckm` with the friendly permission of Prof. Lin Freeman.
About this object
Equal-length columns presented as a table, R's standard rectangular format. R object catalogue
Columns
Column
Type
Distinct
Missing
Summary
integer401 – 4mean 1.988
Min.
1
1st Qu.
1
Median
2
Mean
1.9878
3rd Qu.
3
Max.
4
Std. dev
1.1083
Skewness
0.6509
Kurtosis
-1.03
Order
ascending
ordered factor200November, 195311<December, 19539<January, 19549<February, 195411<March, 195411<April, 195411+14 more
November, 195311<December, 19539<January, 19549<February, 195411<March, 195411<April, 195411+14 more
Levels
20
Used
20
Ranked
Yes
Rows per level
November, 195311<December, 19539<January, 19549<February, 195411<March, 195411<April, 195411<May, 195413<June, 19547<July, 19544<August, 19541<September, 19545<October, 19543<November, 19543<December, 19544<December/January, 1954/19554<January/February, 19552<February, 19551<no prescriptions found16<no prescription data obtained91<other30
integer701 – 9mean 4.183
Min.
1
1st Qu.
3
Median
4
Mean
4.1829
3rd Qu.
5
Max.
9
Std. dev
2.1464
Skewness
0.6585
Kurtosis
0.0867
Outliers
230 low · 23 high
integer400 – 9mean 2.094
Min.
0
1st Qu.
1
Median
2
Mean
2.0935
3rd Qu.
2
Max.
9
Std. dev
2.4931
Skewness
2.113
Kurtosis
3.327
Zeros
46
Outliers
260 low · 26 high
integer901 – 9mean 4.809
Min.
1
1st Qu.
3
Median
4
Mean
4.8089
3rd Qu.
7
Max.
9
Std. dev
2.3664
Skewness
0.4555
Kurtosis
-0.9552
integer401 – 9mean 2.533
Min.
1
1st Qu.
1
Median
1
Mean
2.5325
3rd Qu.
3
Max.
9
Std. dev
2.5373
Skewness
1.905
Kurtosis
2.218
Outliers
300 low · 30 high
integer401 – 9mean 2.589
Min.
1
1st Qu.
1
Median
2
Mean
2.5894
3rd Qu.
2
Max.
9
Std. dev
2.626
Skewness
1.915
Kurtosis
1.964
Outliers
340 low · 34 high
integer300 – 9mean 1.443
Min.
0
1st Qu.
0
Median
0
Mean
1.4431
3rd Qu.
0
Max.
9
Std. dev
3.1987
Skewness
1.913
Kurtosis
1.717
Zeros
187
integer501 – 9mean 3.081
Min.
1
1st Qu.
1
Median
2
Mean
3.0813
3rd Qu.
3
Max.
9
Std. dev
2.8011
Skewness
1.405
Kurtosis
0.4443
Outliers
410 low · 41 high
integer801 – 9mean 4.557
Min.
1
1st Qu.
3
Median
5
Mean
4.5569
3rd Qu.
6
Max.
9
Std. dev
1.9174
Skewness
0.3804
Kurtosis
0.2566
integer701 – 9mean 5.085
Min.
1
1st Qu.
3
Median
5
Mean
5.0854
3rd Qu.
6
Max.
9
Std. dev
2.4271
Skewness
0.3393
Kurtosis
-0.8573
integer501 – 9mean 3.577
Min.
1
1st Qu.
2
Median
3
Mean
3.5772
3rd Qu.
3
Max.
9
Std. dev
2.6014
Skewness
1.401
Kurtosis
0.4563
Outliers
430 low · 43 high
integer501 – 9mean 3.138
Min.
1
1st Qu.
1
Median
3
Mean
3.1382
3rd Qu.
4
Max.
9
Std. dev
2.0774
Skewness
1.345
Kurtosis
1.976
Outliers
180 low · 18 high
Version history
| Version | Released | Size | Change | Stored as | Confidence |
|---|---|---|---|---|---|
| 1.0.4 | 2024-02-09 | 246 × 13 | Unchanged | rda · gzip version 2 · 7.4 KB | exact |
| 1.0.1 | 2023-08-22 | 246 × 13 | Unchanged | rda · gzip version 2 · 7.4 KB | exact |
| 1.0 | 2022-01-15 | 246 × 13 | Unchanged | rda · gzip version 2 · 7.4 KB | exact |
| 0.9-11 | 2015-09-17 | 246 × 13 | Unchanged | rda · gzip version 2 · 7.4 KB | exact |
| 0.9-10 | 2014-04-25 | 246 × 13 | Unchanged | rda · gzip version 2 · 7.4 KB | exact |
| 0.9-9 | 2013-06-03 | 246 × 13 | Unchanged | rda · gzip version 2 · 7.4 KB | exact |
| 0.9-8 | 2013-02-22 | 246 × 13 | Unchanged | rda · gzip version 2 · 7.4 KB | exact |
| 0.9-7 | 2013-02-16 | 246 × 13 | Unchanged | rda · gzip version 2 · 7.4 KB | exact |
| 0.9-6 | 2013-02-15 | 246 × 13 | – | rda · gzip version 2 · 7.4 KB | exact |