Displaying 20 results from an estimated 37 matches for "ashta".
2009 Sep 23
3
Reading data
Dear R-users,
I am a new user for R. I am eager to lean about it.
I wanted to read and summary of the a simple data file
I used the following,
rel <- read.table("C:/Documents and Settings/ashta/My
Documents/R_data/rel.dat", quote="",header=FALSE,sep="",col.names=
c("id","orel","nrel"))
summary(rel)
Below is the error message,
rel <- read.table("C:/Documents and Settings/ashta/My
Documents/R_data/rel.dat", quote=...
2009 Oct 01
4
Color of graph
I am trying to plot a line graph for 3 or more regression lines
abline(m1)
abline(m2)
abline(m3)
Can I change the color of each line? if so how?
Thanks in advance
Ashta
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2017 Dec 07
4
Remove
> On Dec 6, 2017, at 4:27 PM, Ashta <sewashm at gmail.com> wrote:
>
> Thank you Ista! Worked fine.
Here's another (possibly more direct in its logic?):
DM[ !ave(DM$x, DM$GR, FUN= function(x) {!length(unique(x))==1}), ]
GR x y
5 B 25 321
6 B 25 512
7 B 25 123
8 B 25 451
--
David
> On Wed, Dec 6, 2017...
2017 Dec 09
0
Remove
...521
C 68 235
C 85 258
C 80 654',header = TRUE, stringsAsFactors = FALSE)
The end result will be
A 25 125
A 23 135
B 45 321
B 47 512
C 61 521
C 68 235
Thank you
On Wed, Dec 6, 2017 at 10:34 PM, David Winsemius <dwinsemius at comcast.net> wrote:
>
>> On Dec 6, 2017, at 4:27 PM, Ashta <sewashm at gmail.com> wrote:
>>
>> Thank you Ista! Worked fine.
>
> Here's another (possibly more direct in its logic?):
>
> DM[ !ave(DM$x, DM$GR, FUN= function(x) {!length(unique(x))==1}), ]
> GR x y
> 5 B 25 321
> 6 B 25 512
> 7 B 25 123
>...
2009 Oct 08
5
row selection
Hi all,
I have a matrix named x with N by C
I want to select every 5 th rrow from matrix x
I used the following code
n<- nrow(x)
> for(i in 1: n){
+ b <- a[i+5,]
>b
}
Error: subscript out of bounds
Can any body point out the problem?
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2017 Dec 06
2
Remove
Hi Ashta,
There are many ways to do it. Here is one:
vars <- sapply(split(DM$x, DM$GR), var)
DM[DM$GR %in% names(vars[vars > 0]), ]
Best
Ista
On Wed, Dec 6, 2017 at 6:58 PM, Ashta <sewashm at gmail.com> wrote:
> Thank you Jeff,
>
> subset( DM, "B" != x ), this works if I k...
2017 Dec 09
2
Remove
> On Dec 8, 2017, at 4:48 PM, Ashta <sewashm at gmail.com> wrote:
>
> Hi David, Ista and all,
>
> I have one related question Within one group I want to keep records
> conditionally.
> example within
> group A I want keep rows that have " x" values ranged between 15 and 30.
> group B I w...
2009 Oct 14
2
Survival and nonparametric
Hi all,
Has any body the exprience to iclude a nonparametric component into the
survival analysis using R
package? *Can someone recommend *me * some ** references? *
Thanks a lot
Ashta
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2017 Dec 09
1
Remove
...;- split(DM$x, DM$GR)
inx <- unlist(lapply(seq_along(sp), function(i) keep[[i]][1] <= sp[[i]]
& sp[[i]] <= keep[[i]][2]))
DM[inx, ]
# GR x y
#1 A 25 125
#2 A 23 135
#5 B 45 321
#6 B 47 512
#9 C 61 521
#10 C 68 235
Hope this helps,
Rui Barradas
On 12/9/2017 12:48 AM, Ashta wrote:
> Hi David, Ista and all,
>
> I have one related question Within one group I want to keep records
> conditionally.
> example within
> group A I want keep rows that have " x" values ranged between 15 and 30.
> group B I want keep rows that have " x&q...
2017 Dec 07
0
Remove
Thank you Ista! Worked fine.
On Wed, Dec 6, 2017 at 5:59 PM, Ista Zahn <istazahn at gmail.com> wrote:
> Hi Ashta,
>
> There are many ways to do it. Here is one:
>
> vars <- sapply(split(DM$x, DM$GR), var)
> DM[DM$GR %in% names(vars[vars > 0]), ]
>
> Best
> Ista
>
> On Wed, Dec 6, 2017 at 6:58 PM, Ashta <sewashm at gmail.com> wrote:
>> Thank you Jeff,
>>
&g...
2017 Dec 09
1
Remove
...23 135
.
.
.
)
DM %>% filter((GR == "A" & (x >= 15) & (x <= 30)) |
(GR == "B" & (x >= 40) & (x <= 50)) |
(GR == "C" & (x >= 60) & (x <= 75)))
On Fri, Dec 8, 2017 at 4:48 PM, Ashta <sewashm at gmail.com> wrote:
> Hi David, Ista and all,
>
> I have one related question Within one group I want to keep records
> conditionally.
> example within
> group A I want keep rows that have " x" values ranged between 15 and 30.
> group B I want kee...
2017 Dec 09
0
Remove
> On Dec 8, 2017, at 6:16 PM, David Winsemius <dwinsemius at comcast.net> wrote:
>
>
>> On Dec 8, 2017, at 4:48 PM, Ashta <sewashm at gmail.com> wrote:
>>
>> Hi David, Ista and all,
>>
>> I have one related question Within one group I want to keep records
>> conditionally.
>> example within
>> group A I want keep rows that have " x" values ranged between...
2009 Nov 08
5
look up and Missing
HI R-Users
Assume that I have a data frame 'temp' with several variables (v1,v2,v3,v4,v5.).
v1 v2 v3 v4 v5
1 2 3 3 6
5 2 4 2 0
2 -9 5 4 3
6 2 1 3 4
1, I want to look at the entire row values of when v2 =-9
like
2 -9 5 4 3
I wrote
K<- list(if(temp$v2)==-9))
I wrote the like this but it gave me which is not correct.
2017 Dec 09
1
Remove
...l Dunlap
TIBCO Software
wdunlap tibco.com
On Sat, Dec 9, 2017 at 9:38 AM, David Winsemius <dwinsemius at comcast.net>
wrote:
>
> > On Dec 8, 2017, at 6:16 PM, David Winsemius <dwinsemius at comcast.net>
> wrote:
> >
> >
> >> On Dec 8, 2017, at 4:48 PM, Ashta <sewashm at gmail.com> wrote:
> >>
> >> Hi David, Ista and all,
> >>
> >> I have one related question Within one group I want to keep records
> >> conditionally.
> >> example within
> >> group A I want keep rows that have "...
2009 Oct 06
3
Plot
Hi All,
Days <- matrix(c("Monday", "Tuesday", "Wed", "Thu", "Fri", "Sat",
"Sun"),7,1)
Hum <-matrix(c(56,57,60,75,62,67,70),
Temp<-matrix(c(76,77,81,95,82,77,83),
Using the above information I want plot humidity and temperature on Y-axis
and days on X-axis
Any help is appreciated!
[[alternative HTML version
2017 Dec 06
2
Remove
subset( DM, "B" != x )
This is covered in the Introduction to R document that comes with R.
--
Sent from my phone. Please excuse my brevity.
On December 6, 2017 3:21:12 PM PST, David Winsemius <dwinsemius at comcast.net> wrote:
>
>> On Dec 6, 2017, at 3:15 PM, Ashta <sewashm at gmail.com> wrote:
>>
>> Hi all,
>> In a data set I have group(GR) and two variables x and y. I want to
>> remove a group that have the same record for the x variable in each
>> row.
>>
>> DM <- read.table( text='GR x y
>>...
2017 Dec 06
0
Remove
...; != x )
>
> This is covered in the Introduction to R document that comes with R.
> --
> Sent from my phone. Please excuse my brevity.
>
> On December 6, 2017 3:21:12 PM PST, David Winsemius <dwinsemius at comcast.net> wrote:
>>
>>> On Dec 6, 2017, at 3:15 PM, Ashta <sewashm at gmail.com> wrote:
>>>
>>> Hi all,
>>> In a data set I have group(GR) and two variables x and y. I want to
>>> remove a group that have the same record for the x variable in each
>>> row.
>>>
>>> DM <- read.table...
2009 Sep 25
1
Binomial
...s( x1,x2,x3,x4) that influence the outcome. I
want to fit a binomial model . How do I do that? I am guessing the response
variable should be transformed but not sure which family of transformation
to use.
It is easy to do it in SAS but I just want to learn using R
Any help is highly appreciated
Ashta
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2009 Oct 10
1
Creating new variables
Hi all,
I have a data set called x with 200 rows and 12 columns. I want
create two more columns based on probability. ie
if p >0 .4 then v1 =1 else v1=0;
if p >0 .6 then v2 =1 else v2=0;
Finally x will have 14 variables.
Can any one show me how to do that?
Thanks
Ashta
.
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2009 Oct 11
2
Random number
Hi All,
I have the matrix called 'X' with 200 rows and 12 variables. I want to
create 2 new variables (V1 and V2) based on random number generator
p1<-rnorm(200. mean=0, std=1)
p2<-rnorm(200. mean=0, std=1)
x <- cbind(x, v1=ifelse(x[,'p1'] > 0.4, 1, 0), v2=ifelse(x[,'p2'] > 0.6, 0,
1))
I found the following error message
*Error: unexpected symbol in