Skip to content

A3

Coleman, Katz, Menzel "Innovation among Physicians" dataset

Bundled with spatialprobit · exported, loads via data()

Class
dgCMatrix
S4 · Matrix
Dimensions
246 × 246
Missing
0
Format
rda · gzip
version 2 · 7.4 KB
File
data/CKM.RData
Fingerprint
25110fd0
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
Sparse and compact storageEmpty outlines inside brackets stand for the matrix a reader prints, and it is not in the file. What the file holds is below: shorter rows of cells tagged i, p, x and Dim, which together are enough to rebuild it, and nothing is in any of them.as printedin the fileipxDim

The standard sparse matrix format in compressed-column form. Non-zero entries are kept as row indices i, column pointers p, values x, and a Dim pair. R object catalogue

Values

Computed over the stored entries only, not over every cell. The implicit zeros are excluded.

numeric
Stored entries
506
Missing
0
Std. dev
0
Distinct
1
Whole numbers
Yes
Order
constant
Sparse storage
Stored entries
506
Cells
60,516
Density
0.84%
Shape
general
Storage
column-compressed
Value type
double
Declared attributes
Other attributes

Read by name, kind and length, with the value where it is short enough to show. No rule here knows what any of them means.

AttributeHoldsLengthValue
namecharacter1FRIEND
Columns

This object is 246 columns wide. A dgCMatrix carries no per-column schema, so its width is what the catalogue records and there is nothing to list one column at a time. What it holds is described whole instead, summarised over its stored entries: see Values above.

Structure fingerprint

72 other datasets carry the same structure fingerprint. That fingerprint is a digest of the column names and their types, and a dgCMatrix carries neither, so a match is not another object with the same columns. Nor is it one of the same width: on this kind the same fingerprint is carried at more than one width. The datasets are not listed, because that is not a list of anything this one is related to.

Version history
VersionReleasedSizeChangeStored asConfidence
1.0.42024-02-09246 × 246Unchangedrda · gzip
version 2 · 7.4 KB
exact
1.0.12023-08-22246 × 246Unchangedrda · gzip
version 2 · 7.4 KB
exact
1.02022-01-15246 × 246Unchangedrda · gzip
version 2 · 7.4 KB
exact
0.9-112015-09-17246 × 246Unchangedrda · gzip
version 2 · 7.4 KB
exact
0.9-102014-04-25246 × 246Unchangedrda · gzip
version 2 · 7.4 KB
exact
0.9-92013-06-03246 × 246Unchangedrda · gzip
version 2 · 7.4 KB
exact
0.9-82013-02-22246 × 246Unchangedrda · gzip
version 2 · 7.4 KB
exact
0.9-72013-02-16246 × 246Unchangedrda · gzip
version 2 · 7.4 KB
exact
0.9-62013-02-15246 × 246–rda · gzip
version 2 · 7.4 KB
exact

Privacy choices

These apply to this browser and are stored on this device only. Nothing about your choice is sent to us.

Read the privacy policy