Displaying 20 results from an estimated 6000 matches similar to: "Keyword to clear the screen"
2009 May 03
2
clear screen?
I?ve been using this routine for several years. I?m sorry, I don?t remember
where I got it. It works as it should, viz. it blanks the R console. But
it requires package rcom and now that requires rscproxy.
cls <-
function ()
{
require(rcom)
wsh <- comCreateObject("Wscript.Shell")
comInvoke(wsh, "SendKeys", "\f")
invisible(wsh)
}
> cls()
2012 Mar 31
3
clear console
hi,
I use R - 2.15(32bit), and want to make a code to clear a console.
Actually, I used to run following code to do that but after update the
version of R from 2.14 to 2.15, it doesn't work.
cls <- function (t) {
require(RDCOMClient)
wsh <- COMCreate("Wscript.Shell")
wsh$SendKeys("\f")
invisible(wsh)
}
cls()
or
cls <-
2006 Sep 29
3
control L to clear the Rgui screen in Windows
Greetings R-ians:
Searching the Searchable Mail Archives I discovered that ctrl L will clear
the Rgui screen, which is what I'd like to do from a print (or some similar)
statement.
Is there a mechanism to use the ctrl L clear-screen sequence in a script, or
print statement?
Thanks for your counsel.
Charles Annis, P.E.
Charles.Annis at StatisticalEngineering.com
phone: 561-352-9699
eFax:?
2010 May 19
3
save in for loop
Dear users,
My problem concerns save() within a for loop.
Here is my code:
for (i in 1:4) {
temp <- data.frame(a=(i+1):(i+10), b=LETTERS[(i+1):(i+10)])
filename <- paste("file", i, sep="")
assign(filename, temp)
save(filename, file=paste(filename, ".rda", sep=""))
}
As you can see, save() doesn't work as I would like: (1) the object
2010 Oct 29
4
quiry on paste() function
Hi all, I want to club different objects (character type) to a single one and using paste() function that can be done happily. However the problem with paste function is the separator field is unique for all underlying objects. If I put separator as "-" then this will come in between all underlying objects which are to be clubbed.
Therefore I am wondering whether there is any mechanism
2010 Nov 01
2
number of items to replace is not a multiple of replacement length
Hey all,
I am writing a function in which I will have a matrix of 4 columns and a
variable amount of rows.
The first to columns will always contain be of the Character type, the third
and fourth columns
can be a variation of data types, usually characters and integers, but
sometimes lists or matrices.
At one point the code makes, for each row, a copy of that row, then it makes
some adjustments
2010 Dec 08
3
Dont print plot on screen
Hi is there any command or setting that allows you to do the plot command but
it dose not print the plot on screen?
So when you are saveing an plot in a function you dont want it to display
the plot just save it.
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2010 Sep 21
2
labels in (box)plot
Dear users,
I would like all the ticks on a boxplot (x and y) to be labeled
I have checked all the par() arguments but couldn't find what I'm
looking for
Here is an example to show it:
df <- structure(list(SPECSHOR = structure(c(1L, 1L, 1L, 3L, 3L, 3L, 3L,
3L, 4L, 4L), .Label = c("cotau", "dibic", "eqgre", "gicam"), class =
2010 Aug 17
2
dims error
Greetings,
I am a very novice user with R, and in the course of running a linking procedure :
P.old<- function (a, c, b, xi){
#a contains a parameters
#c contains c parameters
#b contains b parameters
#xi is a one column vector containing quadrature points for xi(=theta-gamma)for one item
tmp <- a*(xi-b)
2010 Sep 16
5
using variable from for loop in naming new variables
Simple one here ... but can't get it to work ...
for (i in 1:4){
paste("stuff",[i]),sep="") <- 3 + i
}
ls()
rm(list=ls())
I just want it to create 4 new variables called stuff1, stuff2, stuff3, stuff4 with the corresponding assignments. I realise that there are more elegant functions but this is just a model of a bigger situation.
Thanks
Jim
2010 May 20
6
writing function
Dear group,
I am trying to write functions, but as a beginner, everything is not so
obvious.
Let's say I want the results in a list of elemts like this :
tot1, tot2, etc
Here is a function:
toto <-
function(x,y)
{
for(i in x:y){
paste(c("tot",i),collapse="")<-(i*2)
}
}
If I type this :
>toto(1,5)
I get this message error:
Error in paste(c("tot",
2010 Mar 11
3
Help function "?" in R 2.10.1
Hello everyone,
I have versions 2.7.2 and 2.10.1 installed on a machine that has no
access to internet.
In 2.7.2 I can use ? to get help on functions, which in 2.10.1 that
does not work, all I see is "starting httpd help server...done" and
then nothing.
Have I downloaded 2.10.1 incorrectly (=forgot to tick some box for
local help file repository) or is the internet help now the
2010 Aug 09
1
bind a data frame columns
Hello guys, I want to rbind the columns of a data frame but I don't know how
to do it, let's say:
A B C
1 2 3
1 2 3
I want to get
1
1
2
2
3
3
It seems very simple but I still didnt get a find of how to do it...Please
help!
--
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2010 Aug 19
1
Help with Vectors and conditional functions
Good morning,
I have something like this: names(coint_tests) <- apply(b,2,paste, collapse="_") which prints 15 names like: A_B, C_D, E_F, ...
AA,B,C,D.. Are time series. Then there is a vector called coint_tests of length 15 which yields "yes" or "no".
I need to add a function to plot the time series Ai_Bi if the coint_tests vectors gives me a "YES".
2010 Sep 01
2
invert order
Dear R-help list users,
I have a huge vector of numbers, how I can invert orden?
For example
x <- 1:10000000
I would like to obtain
x_r <- 10000000:1
Thanks,
Sebastian.
2010 Sep 17
1
ifelse statement
Dear list,
I have a question I'm trying to use the following command in R, but it gives
me an error message.The command is:
data<-ddply(data,c("year","name"), transform, check1=ifelse(check1==1 &
check2==1, 1,NULL))
so in my data frame I already have the check1 variable, if the conditions
(check1==1 & check2==1) is respected, check has to have 1 as value,
2010 Sep 29
2
Adding two data.frames.
Hi
I have two data frames that contains the same sort of data and I want do add
them together to get one big data frame, anyone know how to do that?
ex:
data.frame1
A B C
1 2 3
4 5 6
7 8 9
and
data.frame2
A B C
9 8 7
6 5 4
3 2 1
Would then become one big set:
data.frame3
A B C
1 2 3
4 5 6
7 8 9
9 8 7
6 5 4
3 2 1
Thx for your help
//Joel
--
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2010 May 18
3
"Re: Change class factor to numeric"
sorry I had a mistake sending my question without a subject. I do resend again. Please excuse me.
> Hello
> I have a data array with soil variables (caperf), in which the variable "clay" is factor (as I see entering str(caperf)) . I need to do a regression model, so I need to have arcilla (=clay) as a numeric variable. For that I have entered
>
>
2010 Sep 16
2
How to combine matrix and vector
Dear fellows,
I am a novice in R. I would like to combine a matrix and a vector. Assume
that we have the matrix a and the vector b with same length of column.
a<-matrix(seq(1:10),nrow=2,ncol=5,byrow=TRUE)
a=
1 2 3 4 5
6 7 8 9 10
b<-t(c(11,12,13,14,15))
b=
11 12 13 14 15
Then, I want to combine a and b as follows.
c=
1 2 3 4 5
6 7 8 9
2010 Sep 06
2
dataframe row names from list
Hi,
I have a list which looks like this...
> str(y)
List of 10
$ : chr [1:4] "ABCD" "5" "0" "1"
$ : chr [1:4] "DEF" "15" "1" "16"
$ : chr [1:4] "AAA" "2" "17" "8"
$ : chr [1:4] "SSS" "15" "25" "1"
$ : chr [1:4] "III"