Displaying 4 results from an estimated 4 matches for "coloums".
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coloumn
2005 Dec 26
1
grouping-R-help
Hello R-experts,
I have a set of data as follows:
age time
1 28 1
2 53 2
3 53 3
4 36 4
5 54 4
6 46 4
7 45 5
8 31 6
9 53 7
10 35 7
11 62 8
12 19 8
13 43 2
14 51 3
15 45 0
16 48 2
17 49 3
18 57 2
19 45 3
20 27 10
21 33 12
22 29 14
23 46 16
24 45 19
25 43 2
26 28 6
27 50 7
28 28 4
2010 Jan 29
1
Problem with multy level sorting
Hi all
I have a dataframe like I coppied below
> ff
a b d
1 10 5 7
2 20 4 9
3 3 8 10
4 5 6 8
5 6 3 5
6 73 7 3
7 45 28 9
8 3 2 8
while I am trying to sort multy coloums at once I am not able to get that
like ina order of first column "a" next column "d" after that column "b"
here I tried with
o <- order(a,d,b)
but it returns an error
can any one help me to sort this multy-columns atonce
thanks in advance
kiran
[[alternati...
2008 Jun 09
1
Missing Data and applying
Hi All,
Newbie question that i'm sure is easy, but i can't seem to apply properly
I read in a datafram from a CSV file and i want to tell R that from coloum
"n_0" to "n_32" the value "-1" is missing data
i was looking at the
is.na(xx) <- c(..,...,) idea but i can't seem to apply it properly, can
anyone offer advice?
On a side issue while i'm
2006 Dec 13
2
persp() problem
Dear list,
I have a problem on persp()
x <- u1data #first coloum in attached data
y <- u2data #second coloum in attached data
f <- function(x,y){qgev(pnorm(rhoF*qnorm(pnorm((qnorm(y)-rho2*qnorm(x)/sqrt(1-rho2^2))))
+sqrt(1-rhoF^2)*qnorm(0.95)),-0.3935119, 0.4227890,
0.2701648)}
z <- outer(x,y,f)
persp(x,y,z)
The R will display:
"Error in persp.default(x, y,