search for: klaru

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2008 Jan 22
1
row-wise conditional update in dataframe
...tric Care Assistant Professor, Dept. of Medicine, Div. of Neurology University of Toronto Faculty of Medicine Posluns Building, 6th Floor, Room 644 Baycrest Centre for Geriatric Care 3560 Bathurst Street Toronto, Ontario M6A 2E1 Canada Phone: 416-785-2500 x3636 Fax: 416-785-2484 Email: jween@klaru-baycrest.on.ca Confidential: This communication and any attachment(s) may contain confidential or privileged information and is intended solely for the address(es) or the entity representing the recipient(s). If you have received this information in error, you are hereby advised to destroy...
2010 Feb 25
3
variable substitution in for loops
...inic, Baycrest Centre Assistant Professor, Dept. of Medicine, Div. of Neurology University of Toronto Faculty of Medicine Kimel Family Building, 6th Floor, Room 644 Baycrest Centre 3560 Bathurst Street Toronto, Ontario M6A 2E1 Canada Phone: 416-785-2500 x3648 Fax: 416-785-2484 Email: jween@klaru-baycrest.on.ca Confidential: This communication and any attachment(s) may contain confidential or privileged information and is intended solely for the address(es) or the entity representing the recipient(s). If you have received this information in error, you are hereby advised to destroy the do...
2010 Jun 09
1
generate list of variable names
...inic, Baycrest Centre Assistant Professor, Dept. of Medicine, Div. of Neurology University of Toronto Faculty of Medicine Kimel Family Building, 6th Floor, Room 644 Baycrest Centre 3560 Bathurst Street Toronto, Ontario M6A 2E1 Canada Phone: 416-785-2500 x3648 Fax: 416-785-2484 Email: jween@klaru-baycrest.on.ca Confidential: This communication and any attachment(s) may contain confidential or privileged information and is intended solely for the address(es) or the entity representing the recipient(s). If you have received this information in error, you are hereby advised to destroy the do...
2010 Feb 18
1
variable substitution
...inic, Baycrest Centre Assistant Professor, Dept. of Medicine, Div. of Neurology University of Toronto Faculty of Medicine Kimel Family Building, 6th Floor, Room 644 Baycrest Centre 3560 Bathurst Street Toronto, Ontario M6A 2E1 Canada Phone: 416-785-2500 x3648 Fax: 416-785-2484 Email: jween@klaru-baycrest.on.ca Confidential: This communication and any attachment(s) may contain confidential or privileged information and is intended solely for the address(es) or the entity representing the recipient(s). If you have received this information in error, you are hereby advised to destroy the do...
2010 Dec 09
4
lapply getting names of the list
Hello All, I have a toy dataframe like this. It has 8 columns separated by tab. Name SampleID Al1 Al2 X Y R Th rs191191 A1 A B 0.999 0.09 0.78 0.090 abc928291 A1 B J 0.3838 0.3839 0.028 0.888 abcnab A1 H K 0.3939 0.939 0.3939 0.77 rx82922 B1 J K 0.3838 0.393
2010 Dec 09
1
set dataframe field value from lookup table
Hi This is (hopefully) a bit more cogent phrasing of a previous post. I'm trying to compute a z-score to rows in a large dataframe based on values in another dataframe. Here's the script (that does not work). 2 questons, 1) Anyone know of a more elegant way to calculate the "rounded" age value than the nested ifelse's I've used? 2) how to reference the lookup table
2009 Jun 18
2
r scripting
Hi! I have a dataset with some 300+ variables and 2000+ records. I'd like to grind through a bunch of analyses on the variables by using a script, but can't figure out how to refer to variable names properly. For some of the simpler stuff I use various "apply" functions, but for others (like t-tests etc) I need by command procedures. I've tried various flavors of