search for: metastaticdt

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

2012 Jan 24
6
Checking for invalid dates: Code works but needs improvement
...1 11/23/21931 05/23/2009 un/17/2011 2 06/20/1940 02/30/2010 03/17/2011 3 06/17/1935 12/20/2008 07/un/2011 4 05/31/1937 01/18/2007 04/30/2011 5 06/31/1933 05/16/2009 11/20/un ") TestDates <- data.frame(scan(connection, list(Patient=0, birthDT="", diagnosisDT="", metastaticDT=""))) close(connection) TestDates class(TestDates$birthDT) class(TestDates$diagnosisDT) class(TestDates$metastaticDT) #### List of Date Variables #### DateNames <- c("birthDT", "diagnosisDT", "metastaticDT") #### Read Dates #### for (i in seq(TestDa...
2012 Jan 26
0
R-help Digest, Vol 107, Issue 25
...23/21931 05/23/2009 un/17/2011 2 06/20/1940 02/30/2010 03/17/2011 3 06/17/1935 12/20/2008 07/un/2011 4 05/31/1937 01/18/2007 04/30/2011 5 06/31/1933 05/16/2009 11/20/un ") TestDates <- data.frame(scan(connection, list(Patient=0, birthDT="", diagnosisDT="", metastaticDT=""))) close(connection) TestDates class(TestDates$birthDT) class(TestDates$diagnosisDT) class(TestDates$metastaticDT) #### List of Date Variables #### DateNames <- c("birthDT", "diagnosisDT", "metastaticDT") #### Read Dates #### for (i in seq(TestDa...
2012 Jan 18
4
R-Help
I am trying to create a frequency distribution and I am a bit confused. Here are the commands I have entered: > data <- read.csv(file="40609_sortedfinal.csv",head=TRUE,sep=",") > NumberOfActionsByStatus = data$STATUS > NumberOfActionsByUser = data$ETS_LOGIN > NumberOfBidOffer = data$BID_OFFER > NumberOfActionsByUser.freq = table(NumberOfActionsByUser) >