Displaying 20 results from an estimated 40 matches for "azam".
Did you mean:
adam
2008 Sep 10
6
request: most repeated component of a list
...4 1 0 0
[3,] 4 4 1 0 0
[4,] 4 4 0 0 0
For 200 components i want to make a frequency table. How can i make a frequency table of these components or the most repeated component out of all? Any help in this regard will be appreciated.
Muhammad Azam
[[alternative HTML version deleted]]
2010 Jun 09
3
bootpred for multinomial
I applied bootpred for multinomial logistic reg. (with nnet package). I used same as theta.fit and theta.predict of R for my data. but give me error. Can I do this with
response vriable;7 levels
predictor variables:5 (1 classifier, 4 continuous)?
Thanks alot
Azam
[[alternative HTML version deleted]]
2008 Oct 14
4
request: How to ignore columns having zero sums
...array(x, dim=c(4,6))
output is
> x1
[,1] [,2] [,3] [,4] [,5] [,6]
[1,] 1 2 3 4 0 0
[2,] 1 2 3 4 0 0
[3,] 1 2 3 4 0 0
[4,] 1 2 3 4 0 0
How can i ignore columns having zero sums? Help in this regard is needed. Thanks
M.Azam
[[alternative HTML version deleted]]
2008 Jun 06
5
request: a class having max frequency
...t find the required result. using
dat <- pima
f <- table(dat[,9])
> f
0 1
500 268
i want to find that class say "0" having maximum frequency i.e 500. I used
>which.max(f)
which provide
0
1
How can i get only the "0". Thanks and
best regards
Muhammad Azam
Ph.D. Student
Department of Medical Statistics,
Informatics and Health Economics
University of Innsbruck, Austria
[[alternative HTML version deleted]]
2008 Sep 07
0
Fwd: request: most repeated sequnce
---------- Forwarded message ----------
From: jim holtman <jholtman at gmail.com>
Date: Sun, Sep 7, 2008 at 11:42 AM
Subject: Re: [R] request: most repeated sequnce
To: Muhammad Azam <mazam72 at yahoo.com>
This should do it for you:
> x=c(1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,2,2,2,3,3,0,0,0,0,0,0,0,0,0,0,1,1,1,2,2,3,3,3,4,4,4,0,0,0,0,0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,
+ 0,0,0,0,0,0,1,2,2,2,2,2,0,3,3,0,4,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,...
2008 Oct 15
3
request: How can we ignore a component of list having no element
...,] 3 1 3 1 3 2 1
[6,] 3 1 3 1 3 2 0
[[4]]
[,1] [,2] [,3] [,4]
[1,] 3 0 0 0
[2,] 3 1 3 3
[3,] 3 1 3 3
[4,] 3 1 3 0
OR
x1=c(1,2,3); x2=c(1,2,3,4,6); x3=c(); x=list(x1,x2,x3)
M.Azam
[[alternative HTML version deleted]]
2008 May 28
3
request: which integer in each column is in majority
.... I am looking for some kind reply. Thanks
example:
> x=matrix(c(1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,4,1,2,3,3),ncol=4)
> x
[,1] [,2] [,3] [,4]
[1,] 1 2 3 4
[2,] 1 2 4 1
[3,] 1 3 4 2
[4,] 2 3 4 3
[5,] 2 3 4 3
best regards
Muhammad Azam
Ph.D. Student
Department of Medical Statistics,
Informatics and Health Economics
University of Innsbruck, Austria
[[alternative HTML version deleted]]
2008 Sep 06
2
request: most repeated sequnce
...w-wise) of values in each sector. e.g. in sector 1 i.e. , , 1
the most repeated sequence is 1 (ignoring zeros). In , , 2 the most repeated sequence is 1 2 3. Similarly in last sector i.e.
, , 5 such sequence is 2 2 3 4. Any body can help to solve this problem. Thanks
best regards
Muhammad Azam
[[alternative HTML version deleted]]
2008 Sep 03
2
request: How to get column name
...,8,8); x=matrix(x, nrow=4)
the output is
> x
[,1] [,2] [,3] [,4]
[1,] 3 0 5 8
[2,] 3 0 5 8
[3,] 3 0 5 8
[4,] 3 0 5 8
In this case the required column is second so the result should be "2". How can i get it?
best regards
Muhammad Azam
[[alternative HTML version deleted]]
2010 Jun 08
2
cross-validation
Hi
I want to do leave-one-out cross-validation for multinomial logistic regression in R. I did multinomial logistic reg. by package nnet in R. How I do validation? by which function?
response variable has 7 levels
please help me
Thanks alot
Azam
[[alternative HTML version deleted]]
2008 Jun 02
2
request: To add an extra row in a matrix
...rix having just one row. e.g.
b <- matrix(7:9,1,3)
> b
[,1] [,2] [,3]
[1,] 7 8 9
Now i want to get result like this
[,1] [,2] [,3]
[1,] 1 3 5
[2,] 2 4 6
[3,] 7 8 9
Can any body help to get the required result. Thanks and
best regards
Muhammad Azam
Ph.D. Student
Department of Medical Statistics,
Informatics and Health Economics
University of Innsbruck, Austria
[[alternative HTML version deleted]]
2007 Oct 31
2
survey weights in sample with replacement
>> Hi,
I am trying to draw a random sample from an household survey with sample weight. Is there any function in R or Splus which allows this.
Regards,
*******************************************************
Mehtabul Azam
Department of Economics
Southern Methodist University
Dallas TX 75275-0496
Tel: (214) 214 938 3906
Email: mazam at smu.edu <mailto:mazam at smu.edu>
Web: http://people.smu.edu/mazam
2008 Dec 01
1
request: how to assign alphabets to integer values
...s; dl=nrow(ds)
c1=ds[,1]; c2=ds[,2]; c3=ds[,3]; c4=ds[,4]; c5=ds[,5]; iris=cbind(c1,c2,c3,c4,c5)
y=iris[,5]
y1=which(y==1); y[y1] <- c("a"); y2=which(y==2); y[y2] <- c("b"); y3=which(y==3); y[y3] <- c("c");
iris=cbind(c1,c2,c3,c4,y)
Thnks and best regards
M. Azam
[[alternative HTML version deleted]]
2010 Jun 03
1
increase memory
...0M
It does not work.
When I add the --max-mem-size=500M in Target field. There is error like as below:
“The name "C:\Program Files\R\R-2.11.0\bin\Rgui.exe"--max-mem-size=500M specified in the Target box is not valid”
I use R2.11.0. in window vista with 3Gb RAM.
Have a nice day
Azam
[[alternative HTML version deleted]]
2009 Apr 09
1
request: maximum depth reached problem
...s given below:
iris.tr = tree(Species ~., data=training.data, method=c("recursive.partitioning"), split = c("gini"), control=tree.control(nobs = 150, minsize = 5, mincut = 2))
Any suggestion will be appreciated to handle the above problem. Thanks and
best regards
Muhammad Azam
[[alternative HTML version deleted]]
2009 Apr 01
1
Request: Optimum value of cost complexity parameter "k" in "tree" package
...s = factor(Species, labels = letters[1:3]))
miris <- tree(Species ~ ., data = iris, control=tree.control(nobs = 150, minsize = 5, mincut = 2)); iris.prun=prune.tree(miris, method=c("misclass"), best = NULL, k=0); iris.prun; summary(iris.prun); plot(iris.prun)
best regards
Muhammad Azam
[[alternative HTML version deleted]]
2010 May 26
1
validation logistic regression
...4224 1 0
0.603881788227797 0 1
0.63633478460736 0 1
So, I have salichprediction between 0 to 1 and binary variable(observed values) 0 or 1. I want to compare these data together and I want to know is ok this model(logistic regression) for prediction or no?
please help me?
Thanks alot
Azam
[[alternative HTML version deleted]]
2008 Jun 03
1
request: An array declarion problem
...n the loop
r3[ i,]=rbind(r1[ i, ], r2[ i, ])
But there is an error message
Error in r3[i, ] = rbind(r1[i, ], r2[i, ]) : number of items to replace is not a multiple of replacement length
I am looking for some suggestion to solve the problem. Thanks and
best regards
Muhammad Azam
Ph.D. Student
Department of Medical Statistics,
Informatics and Health Economics
University of Innsbruck, Austria
[[alternative HTML version deleted]]
2008 Jun 27
1
request: To access a particular list
...[1] 4 4 3
[1] 4 4 3
I want to access a particular list vr[[n-1]], but it gives an error
"Error in print(vr[[n - 1]]) : attempt to select less than one element".
How can i tackle this problem to access vr[[n-1]]. Please give some suitable suggestions.
Thanks and best regards
Muhammad Azam
[[alternative HTML version deleted]]
2007 Nov 01
2
Some problem in opening connection with" .dat" extention file in matrix(scan) function of R 2.5
...tion: Warning message:
cannot open file 'motives_pc.dat', reason 'No such file or directory' in:
file(file, "r")
\\
where # name of preferences data file is assigned as,
inputFile <- "motives_pc.dat
Thanking Regards
SYED ADIL HUSSAIN (+923455205402)
QUAID-E-AZAM UNIVERSITY
ISLAMABAD, PAKISTAN.
This is Virus Free Email Scanned by QAU's McAfee Virus Scanner
""THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL
and is thus for use only by the intended recipient. If you received this in error, please contact the sen...