Displaying 20 results from an estimated 1300 matches similar to: "calculate probability"
2010 Nov 08
2
conditional probability
Dear all
I have problem with calculate probability, I have data x1,...,x10,
I want to calculate probability x11 given x1,...,x10 with two conditions.
1. x is normal
2. unknow distribution
How I can do this.
Many Thanks.
Jumlong
--
Jumlong Vongprasert Assist, Prof.
Institute of Research and Development
Ubon Ratchathani Rajabhat University
Ubon Ratchathani
2010 Oct 05
2
Sampling from data set
Dear all.
I have data with 2 variable x,y size 10000.
I want to sampling from this data with size 100.
How I can do it.
THANK.
--
Jumlong Vongprasert
Institute of Research and Development
Ubon Ratchathani Rajabhat University
Ubon Ratchathani
THAILAND
34000
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2010 Oct 19
2
calculate power of test
Dear All
I want to calculate power of test. I want to test H0: Rho = 0 VS H1: Rho
!= 0.
Assume, I have r=0.2 and sample size = 100.
How I can do this.
Many Thanks
Jumlong
--
Jumlong Vongprasert Assist, Prof.
Institute of Research and Development
Ubon Ratchathani Rajabhat University
Ubon Ratchathani
THAILAND
34000
[[alternative HTML version deleted]]
2010 Oct 15
4
split data with missing data condition
Dear all
I have data like this:
x y
[1,] 59.74889 3.1317081
[2,] 38.77629 1.7102589
[3,] NA 2.2312962
[4,] 32.35268 1.3889621
[5,] 74.01394 1.5361227
[6,] 34.82584 1.1665412
[7,] 42.72262 2.7870875
[8,] 70.54999 3.3917257
[9,] 59.37573 2.6763249
[10,] 68.87422 1.9697770
[11,] 19.00898 2.0584415
[12,] 60.27915 2.5365194
[13,] 50.76850
2010 Oct 12
1
Create DataSet with MCAR type
Dear all
I want to create dataset with MCAR type from my dataset.
I have my dataset with 100 records, and I want to create dataset from this
dataset to missing 5 records.
How I can do it.
THX
Jumlong
--
Jumlong Vongprasert
Institute of Research and Development
Ubon Ratchathani Rajabhat University
Ubon Ratchathani
THAILAND
34000
[[alternative HTML version deleted]]
2010 Oct 20
1
remove unused variable and data
Dear All
I have this
> ls()
[1] "IWJR.complete" "IWJR.missing" "IWJR.reg.temp"
[4] "IWJR.reg.temp.x" "IWJR.reg.temp.y" "IWJR.temp"
[7] "Power.record.100.3.5" "col.delete" "correlation.100.3.5"
[10] "i" "index.temp"
2011 Sep 04
1
Test for Random Walk and Makov Process
Dear All
I want to test my data for Random Walk or Markov Process.
How I can do this.
Many Thanks
--
Jumlong Vongprasert Assist, Prof.
Institute of Research and Development
Ubon Ratchathani Rajabhat University
Ubon Ratchathani
THAILAND
34000
[[alternative HTML version deleted]]
2010 Nov 12
1
calculate variance with trimm mean
Dear All
I have problem about calculte variance use R.
I use trimm mean by mean(x, trim=.05) and I want to calculate variance
with trimm=.05.
How I can do this.
Many Thanks.
Jumlong
--
Jumlong Vongprasert Assist, Prof.
Institute of Research and Development
Ubon Ratchathani Rajabhat University
Ubon Ratchathani
THAILAND
34000
[[alternative HTML version deleted]]
2010 Oct 15
1
Impute missing data by regression in R
Dear all
I have data (x,y) with data x is missing in 5 record of 100 record.
I want to impute data x by use regression.
How I can do this.
THX
Jumlong
--
Jumlong Vongprasert Assist. Prof.
Institute of Research and Development
Ubon Ratchathani Rajabhat University
Ubon Ratchathani
THAILAND
34000
2011 Jan 23
2
Problem with combined two data frame.
Dear All.
I have some problem with combined two data frame.
....
I have first data frame ..
GPAX THAI MATH SCINCE SOCIAL HEALT ART CAREER LANGUAGE
1227 2.99 3.32 2.50 2.64 3.05 3.60 3.72 3.57 2.62
1704 2.81 2.56 2.48 2.86 3.22 3.19 3.55 3.20 2.51
617 2.18 1.90 1.97 2.06 2.38 3.50 3.54 2.33 1.70
876 2.82 3.14 2.73 2.46 2.71 3.11 3.04 3.24 2.90
2010 Oct 16
1
Error in eval(expr, envir, enclos) : object 'x' not found
Dear all
I tried to use regression to predicted mu data, but it has error like this:
> IWJR.complete
x y
[1,] 33.17635 2.4705021
[2,] 81.61225 3.3815620
[3,] 65.47392 1.6518975
[4,] 57.97806 1.6110785
[5,] 76.05528 2.1601246
[6,] 41.36090 1.5498132
[7,] 68.77844 2.8078691
[8,] 55.57040 2.1183063
[9,] 41.29287 1.8015709
[10,] 65.43935 2.3483183
[11,] 22.44821
2011 Sep 04
0
Markov Switching GARCH Package
Deal All
I want to use MSGARCH for my data.
What package I will used.
Many THanks
--
Jumlong Vongprasert Assist, Prof.
Institute of Research and Development
Ubon Ratchathani Rajabhat University
Ubon Ratchathani
THAILAND
34000
[[alternative HTML version deleted]]
2003 Jan 17
1
More info - S-Plus compatability
Dear all,
Thanks to those of you who have replied, the majority of the
comments pointed out that the error caused by scan may originate
from another function, and closer inspection of the output from
traceback() reveals that it is in fact the read.table function where
the error is originating from the full output of which I have included
below.
The error msg I recieve is
Error in
2007 Nov 21
1
How to select rows with identical index from two matrix?
Dear list,
I have two martix like these, each rows with name in the matrix.
I try to select rows with identical name from two matrix and calculate their correlation.
Matrix1:
2-Sep 9 5.5 1 7.18 10.0 8 139.45
2-Sep 7 4.9 15 8.22 61.68 9 123.62
4-Sep
5-Sep
AAMP
A2M
A2M
.
.
.
Matrix2:
2-Sep 4 7 1 6.8 12 8 19.4
2009 Dec 24
2
Column naming issues using read.table
Hi, this is my first post so please be gentle.
I quite new to R and using it for my biology degree.
My problem is. Im trying to import data from a .csv file using the
read.table command. The .csv file header starts on row 2 but is contained in
column 1, i have 600 data files and for future ease would rather not edit
each file seperatly. The data starts on row three and I only need the first
381
2005 Mar 11
2
vampire question
I have a quick question for you... when running net
> rpc vampire -S ntserver -U Administrator%stacy182 --- everything
seems
> to run fine.... however I do get
> could not create posix account info for 'machine name$'
2007 Dec 01
3
compare strings
Sorry for the question, but I really cannot find the right search terms to
find an answer..
I have a data frame with strings in some of the columns.
I want to know all the rows where the strings in both columns are equal.
How do I do this?
Thanks,
Bernd
[[alternative HTML version deleted]]
2003 Dec 30
2
split.screen problem with jpeg/png device (PR#6223)
Full_Name: Steve Koehler
Version: 1.8.1
OS: Solaris and Windows
Submission from: (NULL) (192.55.214.50)
In the following program, if output is sent to X11, you get all four graphs,
but if output is sent to .jpeg, you only get the C and D graphs. A workaround
is to do all the screen splitting at the top, before using any screens. This
also
fails with .png output.
jpeg ("test.jpeg")
2000 Jul 09
1
Modified Histogram functions
Dear all,
I have done further modifications on the histogram functions that I
reported earlier this year, and I hope this can be of use and perhaps
included in the distribution. I have been using this stuff a couple of
months myself, and while it is nothing sophisticated, it has it's
applications. :-) I did a few small modifications today to make it a bit
more compact.
I have modified the
2002 Sep 10
3
XP woes
Working with Windows XP and debian Samba 2.2.3a on a box as my PDC. Sign
or seal patch
was applied. The past few days when we have been adding new computers
running windows XP to
the domain we have had machines tell us they have joined the domain, but
when we
try to log onto them using a "domain" account we get the following error on
the
PC:
"The system could not log you on to