Displaying 6 results from an estimated 6 matches for "prasannaprakash".
2006 Feb 17
2
Grouping and Averaging in Table
Dear Rs
I have a single table with three columns in the following form:
1 100 150
1 45 32
1 99 100
2 150 33
2 22 87
2 71 31
....
....
1000 64 32
1 100 150
1 45 32
1 99 100
2 22 89
2 31 44
2 88 11
....
....
1200 64 32
1 100 150
1 45 32
1 99 100
2 150 33
2 22 87
2 71 31
...
...
1100 31 34
Totally 1000+1200+1100 rows. Now, I need to group by first column
and average then second and third column
2005 Nov 25
1
Plotting the diff. between two curves
Dear Rs
I have two vectors A and B
where
A is
V1 d
1 0.000100000 1.123278
2 0.002186431 1.120448
3 0.004351214 1.106661
4 0.006515998 1.107713
5 0.008680781 1.107667
6 0.013010348 1.106353
7 0.019504698 1.104077
8 0.034658181 1.103202
9 0.051976447 1.103200
10 0.073624280 1.094825
11 0.093085682 1.085123
12 0.095250465 1.087325
13 0.132051782 1.086158
14 0.168853098
2007 Jan 22
1
Latin hyper cube sampling from expand.grid()
Dear R experts
I am looking for a package which gives me latin hyper cube samples
from the grid of values produced from the command "expand.grid". Any
pointers to this issue might be very useful. Basically, I am doing the
following:
> a<-(1:10)
> b<-(20:30)
> dataGrid<-expand.grid(a,b)
Now, is there a way to use this "dataGrid" in the package
2005 Nov 03
1
Help in expand.grid() (Restricted combination)
Dear Rs:
BY having the following code:
candidates<-expand.grid(e=c("nearest-neighbor","exaustive"),
d=c(70,75,80,85,90,92,94,96,98,99),
n=c(20,25,30,35,40))
results in :
e d n
1 nearest-neighbor 70 20
2 exaustive 70 20
3 nearest-neighbor 75 20
4 exaustive 75 20
................
90 exaustive 90 40
91 nearest-neighbor 92 40
92 exaustive 92 40
93 nearest-neighbor 94 40
94
2006 Mar 11
1
Scaling in plot function
Dear R helpers,
I have a vector of 500 numbers and I need to plot them in such a way
that the first 250 values should occupy 80% of the plot and the
remaining ones should take 20%. More precisely, x axis ranges form
1:500 and the idea is to give the snapshot of the first 250 values. I
tried "axis()" and log="x", but I am not getting the required output.
Thanks
2006 Apr 10
2
Legend in the outer margin
Dear Rs
I have a 3x3 multiple plot. I would like to have a overall legend in
the outer right margin.
From the help archive, I found that it can be done by setting
par(xpd=NA). However, I couldn't find the correct values
for x and y co-ordinates for the legend. Please find the code snippet below:
par(mfrow=c(3,3), mar=c(4,4,0.9,0.5), oma=c(1,2,2,4),cex.main=1.1)