Displaying 3 results from an estimated 3 matches for "exercies".
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exercises
2009 May 26
5
Help me...!!!
Hi to all...i'm a new R'user and i have to solve some exercies so i ask to
tou for an help...
1.) How i can demonstrate in R that the limit for x-->infinite of
(1+1/x)^x is equal to "e"?
2.) if i have a vector of values how can i create a function that, applied
to my vector, give me "median", "mean", "Var" and &quo...
2013 Apr 25
0
Reading data from a text file conditionally skipping lines
Hi,
It would be better to give an example.
If your dataset is like the one attached:
con<-file("Trial1.txt")
?Lines1<- readLines(con)
?close(con)
#If the data you wanted to extract is numeric and the header and footer are characters,
dat1<-read.table(text=Lines1[-grep("[A-Za-z]",Lines1)],sep="\t",header=FALSE)
dat1
#?? V1 V2 V3 V4 V5
#1? 38 43 39 44 45
#2? 39
2014 Sep 29
8
Spacewalk? Local repo? Cache?
I have a mix of CentOS 5, 6, and now 7 servers at work. There are enough of them now that it is starting to make sense for them to get updates from an internal source.
I've seen RHN Satellite in years past. It looks like it may be a way to allow Windows admins here (familiar with WSUS) to update Linux boxes. A local repo might be easier to set up, but (as with Spacewalk) it seems like