ictusShort: ~ Data: ictusShort ~

In kmlShape: K-Means for Longitudinal Data using Shape-Respecting Distance

Description

A subset of the longitudinal study ICTUS

Usage

data("ictusShort")

Format

A data frame with 1374 observations on the following 16 variables.

id

Unique identifier

MMS-1

Mini Mental Score at time 1

MMS-2

Mini Mental Score at time 2

MMS-3

Mini Mental Score at time 3

MMS-4

Mini Mental Score at time 4

MMS-5

Mini Mental Score at time 5

MMS-6

Mini Mental Score at time 6

MMS-7

Mini Mental Score at time 7

MMS-8

Mini Mental Score at time 8

MMS-9

Mini Mental Score at time 9

MMS-10

Mini Mental Score at time 10

MMS-11

Mini Mental Score at time 11

MMS-12

Mini Mental Score at time 12

MMS-13

Mini Mental Score at time 13

MMS-14

Mini Mental Score at time 14

MMS-15

Mini Mental Score at time 15

Details

Ictus [1, 2] is a cohort of 1380 patients with Alzheimer disease followed-up in 12 European countries. These patients were included between February 2003 and July 2005 in 29 centres specialized in neurology, geriatrics, psychiatry, or psycho-geriatrics with a recognized experience in the diagnosis and management of Alzheimer disease. Most of these patients were seen during memory consultations and included consecutively. These patients were examined at six-month intervals over two years. Each examination included (though not exclusively) an Mini Mental Score (MMS) assessment.

The dataset "ictusShort" is a subset of the cohort Ictus. Since the acces to Ictus is submited to conditions, the original data have been transform before inclusion in the package, but the results of the analysis using kmlShape are the same on the real Ictus and ictusShort.

References

[1]

Reynish, E., Cortes, F., Andrieu, S., Cantet, C., Olde Rikkert, M., Melis, R., Froelich, L., Frisoni, G., Jonsson, L., Visser, P., et al., 2007. The ictus study: A prospective longitudinal observational study of 1,380 ad patients in europe. Neuroepidemiology 29 (1-2), 29-38

[2]

Vellas, B., Hausner, L., Frolich, L., Cantet, C., Gardette, V., Reynish, E., Gillette, S., Aguera-Morales, E., Auriacombe, S., Boada, M., et al., 2012. Progression of alzheimer disease in europe: Data from the european ictus study. Current Alzheimer Research 9 (8), 902-912.

Examples

data(ictusShort)
summary(ictusShort)
matplot(t(ictusShort),type="l")

Example output

Loading required package: class
Loading required package: longitudinalData
Loading required package: clv
Loading required package: cluster
Loading required package: rgl
Loading required package: misc3d
Loading required package: kml
Loading required package: lattice

Attaching package: 'kmlShape'

The following object is masked from 'package:longitudinalData':

    distFrechet

Warning messages:
1: In rgl.init(initValue, onlyNULL) : RGL: unable to open X11 display
2: 'rgl_init' failed, running with rgl.useNULL = TRUE 
3: .onUnload failed in unloadNamespace() for 'rgl', details:
  call: fun(...)
  error: object 'rgl_quit' not found 
      id                MMS-1        MMS-2           MMS-3      
 Length:1374        Min.   :11   Min.   : 7.00   Min.   : 7.00  
 Class :character   1st Qu.:19   1st Qu.:19.00   1st Qu.:19.00  
 Mode  :character   Median :22   Median :22.00   Median :22.00  
                    Mean   :22   Mean   :21.98   Mean   :21.76  
                    3rd Qu.:25   3rd Qu.:25.00   3rd Qu.:25.00  
                    Max.   :28   Max.   :29.00   Max.   :30.00  
     MMS-4           MMS-5           MMS-6           MMS-7      
 Min.   : 7.00   Min.   : 6.00   Min.   : 5.00   Min.   : 5.00  
 1st Qu.:19.00   1st Qu.:19.00   1st Qu.:18.00   1st Qu.:18.00  
 Median :22.00   Median :22.00   Median :21.00   Median :21.00  
 Mean   :21.56   Mean   :21.11   Mean   :20.88   Mean   :20.58  
 3rd Qu.:25.00   3rd Qu.:25.00   3rd Qu.:24.00   3rd Qu.:24.00  
 Max.   :30.00   Max.   :30.00   Max.   :31.00   Max.   :31.00  
     MMS-8           MMS-9          MMS-10          MMS-11          MMS-12     
 Min.   : 5.00   Min.   : 5.0   Min.   : 5.00   Min.   : 5.00   Min.   : 1.00  
 1st Qu.:17.00   1st Qu.:17.0   1st Qu.:16.00   1st Qu.:15.00   1st Qu.:15.00  
 Median :21.00   Median :21.0   Median :20.00   Median :20.00   Median :19.00  
 Mean   :20.19   Mean   :19.9   Mean   :19.56   Mean   :19.29   Mean   :18.75  
 3rd Qu.:24.00   3rd Qu.:24.0   3rd Qu.:23.00   3rd Qu.:23.00   3rd Qu.:23.00  
 Max.   :31.00   Max.   :32.0   Max.   :32.00   Max.   :32.00   Max.   :32.00  
     MMS-13         MMS-14          MMS-15     
 Min.   : 1.0   Min.   : 1.00   Min.   : 1.00  
 1st Qu.:14.0   1st Qu.:14.00   1st Qu.:14.00  
 Median :19.0   Median :19.00   Median :19.00  
 Mean   :18.4   Mean   :18.21   Mean   :18.04  
 3rd Qu.:23.0   3rd Qu.:23.00   3rd Qu.:23.00  
 Max.   :32.0   Max.   :32.00   Max.   :32.00  
There were 50 or more warnings (use warnings() to see the first 50)

kmlShape documentation built on May 1, 2019, 7:50 p.m.