Displaying 6 results from an estimated 6 matches for "balaprakash".
2005 Jan 21
2
chi-Squared distribution in Friedman test
...= FALSE)
but still I cant figure out why they are using this pschisq insted of dchisq. Sorry I am wrong!!
Thanking you
truly
Prasanna
>
>----- Original Message -----
>From: "Dimitris Rizopoulos" <dimitris.rizopoulos at med.kuleuven.ac.be>
>To: "Prasanna Balaprakash" <pbalapra at ulb.ac.be>
>Cc: <r-help at stat.math.ethz.ch>
>Sent: Friday, January 21, 2005 1:05 PM
>Subject: Re: [R] chi-Squared distribution
>
>
>> if you check ?qchisq, you'll see that the second
>
>My mistake, the third argument
>
>> argu...
2005 Jan 21
2
chi-Squared distribution
...hi-sqaured distribution. When I employed the similar formula
outer(1:3, 1:3, function(df1, df2) qchisq(0.95, df1, df2)) , I am getting unexpected results. I need to see the following values:
p=0.750 .....
1 1.323
2 2.773
3 4.108
Thanking you
Prasanna
Prasanna Balaprakash,
Universit? Libre de Bruxelles,
50, Av. F. Roosevelt, CP 194/6,
B-1050 Brussels,
Belgium.
2005 Nov 25
1
Plotting the diff. between two curves
...591
6 0.010845564 0.948444
7 1.000000000 0.948444
If I plot A and B, I will get two curves. However, is there any method to
find the signed difference between these two curves so that I will have only
one curve which shows the difference between these two curves?
Thanks
Prasanna
--
Prasanna BALAPRAKASH
IRIDIA, Université Libre de Bruxelles
50, Av. F. Roosevelt, CP 194/6
1050 Brussels
Belgium.
http://iridia.ulb.ac.be/~prasanna
[[alternative HTML version deleted]]
2005 Nov 03
1
Help in expand.grid() (Restricted combination)
...ut "exaustive" only with d=c(70,75,80,85,90,92,94,96,98,99). Therefore I
will have only 50+10 combinations not 100.
I need to have combination as shown below
1 nearest-neighbor 70 20
2 exaustive 70
3 nearest-neighbor 75 20
4 exaustive 75
................
60
Thanks
Prasanna
--
Prasanna BALAPRAKASH
IRIDIA, Université Libre de Bruxelles
50, Av. F. Roosevelt, CP 194/6
1050 Brussels
Belgium.
[[alternative HTML version deleted]]
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
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