search for: missingdata

Displaying 3 results from an estimated 3 matches for "missingdata".

2008 Aug 01
1
importing explicitly declared missing values in read.spss (foreign)
...roblem when importing an spss-file containing explicitly declared missing values in R using the read.spss function from the foreign package. I'm not sure these problems are the same in every version of spss, I am using the latest version 16.0.2. I included http://www.nabble.com/file/p18776776/missingdata.sav missingdata.sav and http://www.nabble.com/file/p18776776/frequencies.jpg frequencies.jpg as an example. The data contains 3 types of missing data: 2 are explicitly declared as a missing-value ('8' = NA and '9' = NAP), the third type are the system missings. When this file is...
2005 Apr 12
2
not plotting when non-existent
R-help, I'm trying to plot the following: year lgd 1 1986 136.97479 2 1987 69.10377 3 1988 67.66744 4 1989 71.60316 5 1990 62.06897 6 1992 6.25000 7 1993 27.72021 8 1995 23.83648 9 1996 10.29412 10 1997 95.67487 11 1998 82.09367 12 1999 56.60401 13 2000 29.80864 14 2001 23.77535 15 2002 48.30378 16 2003 83.47571 17 2004 74.58711 There are 2 missing years
2007 Sep 24
0
Need help to create a monotone missing data pattern
Hi I've simulated multivariate longitudinal. The data is a mixture of conitnous and categorical data. I've stored it in matrix form with the time dependent variables as colons. Now I want to create a monote missing data pattern starting of with MCAR-missingnes and different proportions of missingdata and then refine the function to handle MAR and NMAR. Is there anybody that could help or point in the right direction. /Mauri [[alternative HTML version deleted]]