max/summary
On Sat, May 17, 2003 at 11:47:18AM -0700, Mahbub Latif wrote:
Hi, What is the reason for getting two different max of a vector from two functions max() and summary()? Here is an example,
set.seed(2222) x <- sample(x=1:100000, size=10000, replace=T) max(x)
[1] 99992
summary(x)
Min. 1st Qu. Median Mean 3rd Qu. Max.
6 24510 49950 50020 75040 99990
Which value is the correct one? I had this problem
while I was working with microarry data.
They are both the same, summary uses a display with 4 significant digits: edd at chibud:~> R --silent --no-save --no-restore
set.seed(2222) x <- sample(x=1:100000, size=10000, replace=T) max(x)
[1] 99992
summary(x, digits=6)
Min. 1st Qu. Median Mean 3rd Qu. Max.
6.0 24513.5 49954.5 50019.7 75038.8 99992.0
Hth, Dirk
Don't drink and derive. Alcohol and analysis don't mix.