Displaying 20 results from an estimated 10000 matches similar to: "adding a legend to the plot (but outside of it)"
2010 Oct 04
1
reducing distances between tickmarks
Hello, everybody!
I have a code below that creates a data set and then a stacked bar
chart based on that data set.
No need to look at it - just notice please that my horizontal axis is
a date varible (x=my.data$date).
I have a question about the last 2 lines of this code:
grid(nx=NULL,ny=NULL,col = "lightgray", lty = "dotted",lwd = par("lwd"))
axis(1, las = 2)
Could
2010 Sep 27
1
stacked area chart
Dear R-ers!
Asking for your help with building the stacked area chart for the
following simple data (several variables - with date on the X axis):
### Creating a data set
my.data<-data.frame(date=c(20080301,20080402,20080503,20090301,20090402,20090503,20100301,20100402,20100503),
x=c(1.1,1.0,1.6,1,2,1.5,2.1,1.3,1.9),y=c(-4,-3,-6,-5,-7,-5.2,-6,-4,-4.9),
2010 Oct 05
2
is there a way to avoid "traveling" grid?
Hello!
If you run the whole code below, it'll produce a stacked diagram. And
it looks good - because the tick-marks are aligned with the grid.
However, if I stretch the graph window, grid becomes misaligned with
the tickmarks. Or, rather, it seems aligned for the first and the last
tick mark, but not for tickmarks in between.
Can it be addressed?
Thank you!
Dimitri
### Creating a data set
2010 Oct 18
0
Question about legend parameters
Hello!
The code below works - if you run it you'll see a stacked area chart
generated based on the data example.
I only have one understanding question about the legend location (the
very last snippet of code):
legend(par()$usr[2],
mean(par()$usr[3:4]),
rev(order.of.vars),
xpd=T,
bty="n",
pch=15,
col=all.colors[rev(order.of.colors)])
I see that par()$usr[2] = 14763.72
2009 Feb 18
1
interaction.plot - gridlines and formatting legend title...
Thank you for providing advice on this graphics question.
I am building an interaction.plot.
d=data.frame(xx=c(3,3,2,2,1,1),yy=c(4,3,4,3,4,3),zz=c(5.1,4.2,4.4,3.5,3.3,-1.1,-1.3)
d[[1]]<-as.factor(d[[1]])
d[[2]]<-as.factor(d[[2]])
print(d)
interaction.plot(d$xx, d$yy, d$zz,
type="b", col=c("red","blue"), legend=F,
lty=c(1,2), lwd=2, pch=c(18,24),
2010 Apr 23
2
Matrix diagonal help
Hi
Suppose I have a matrix (cohort are rows and years are columns)
[2000] [2001] [2002] [2003]
[C1] 0.01 0.03 0.02 0.09
[C2] 0.06 0.05 0.07 0.11
[C3] 0.1 0.5 0.4 0.98
[C4] 0.7 0.6 0.2 0.77
I want to extracts the diagonals to get a matrix which looks like this (C1
becomes C2 in 2002, C2 becomes C3 in 2003
2011 May 21
4
Looping through values in a data frame that are >zero
Hello!
I've tried for a while - but can't figure it out. I have data frame x:
y=c("a","b","c","d","e")
z=c("m","n","o","p","r")
a=c(0,0,1,0,0)
b=c(2,0,0,0,0)
c=c(0,0,0,4,0)
x<-data.frame(y,z,a,b,c,stringsAsFactors=F)
str(x)
Some of the values in columns a,b, and c are >0:
I need to
2011 Feb 25
6
preventing repeat in "paste"
Hello!
s<-"start"; e<-"end"
middle<-as.character(c(1,2,3))
I would like to get the following result:
"start 123 end" or "start 1 2 3 end" or "start 1,2,3 end"
How can I avoide this (undesired) result:
paste(s,middle,e,sep=" ")
Thank you!
--
Dimitri Liakhovitski
Ninah Consulting
www.ninah.com
2010 Oct 01
3
Suppressing printing in the function
Hello!
I wrote a function that returns a data frame. Nowhere in the function
do I say print(my.data.frame), but when I run the function - the data
frame is printed on the console.
Is there any way to suppress it?
Thank you!
--
Dimitri Liakhovitski
Ninah Consulting
www.ninah.com
2010 Mar 26
4
Competing with SPSS and SAS: improving code that loops through rows (data manipulation)
Dear R-ers,
In my question there are no statistics involved - it's all about data
manipulation in R.
I am trying to write a code that should replace what's currently being
done in SAS and SPSS. Or, at least, I am trying to show to my
colleagues R is not much worse than SAS/SPSS for the task at hand.
I've written a code that works but it's too slow. Probably because
it's
2009 Oct 13
4
replacing period with a space
Dear R-ers!
I have x as a variable in a data frame x.
x<-data.frame(x=c("aa.bb","cc.dd.ee"))
x$x<-as.character(x$x)
x
I am sorry for such a simple question - but how can I replace all
periods in x$x with spaces?
sub('.', ' ', x$x) - removes all letters to the left of each period...
Thanks a lot for your advice!
--
Dimitri Liakhovitski
Ninah.com
2010 Mar 04
4
Analogue to SPSS regression commands ENTER and REMOVE in R?
I am not sure if this question has been asked before - but is there a
procedure in R (in lm or glm?) that is equivalent to ENTER and REMOVE
regression commands in SPSS?
Thanks a lot!
--
Dimitri Liakhovitski
Ninah.com
Dimitri.Liakhovitski at ninah.com
2010 Oct 25
3
finding the year of a date
I know that I can use as.yearmon in the package "zoo" to find the year
and the month of a date.
I can use as. yearqtr to find the year and the quarter.
But how can one find just the year of a date?
Thanks a lot!
--
Dimitri Liakhovitski
Ninah Consulting
www.ninah.com
2010 Aug 04
6
applying strsplit to a whole column
I am sorry, I'd like to split my column ("names") such that all the
beginning of a string ("X..") is gone and only the rest of the text is
left.
x<-data.frame(names=c("X..aba","X..abb","X..abc","X..abd"))
x$names<-as.character(x$names)
(x)
str(x)
Can't figure out how to apply strsplit in this situation - without
using a
2010 Aug 13
3
transforming dates into years
Hello!
If I have in my data frame MyFrame a variable saved as a Date and want
to translate it into years, I currently do it like this using "zoo":
library(zoo)
as.year <- function(x) as.numeric(floor(as.yearmon(x)))
myFrame$year<-as.year(myFrame$date)
Is there a function that would do it directly - like "as.yearmon" -
but for years?
Thank you!
--
Dimitri
2009 Sep 23
2
Function to check if a vector contains a given value?
Dear R'rs,
is there a function that checks if a given vector contains a certain value.
E.g., x<-c(1,2,3,4).
How can I get a TRUE or FALSE for whether x contains a 2?
--
Dimitri Liakhovitski
Ninah.com
Dimitri.Liakhovitski at ninah.com
2013 Jan 29
1
points rejected as lying outside the specified window
Hello,
I am using the following code to create ppp files from csv data and map shape files, but I am getting some errors which I have been unable to fix by searching them online:
library(spatstat)
library(maps)
library(maptools)
NYC2<-readShapePoly("nybb.shp") # this is a map of the NYC boroughs without waterways and no census tract divisions (but it does include lines separating
2011 Feb 24
4
Running code sequentially from separate scripts (but not functions)
Hello!
I am wondering if it's possible to run - in sequence - code that is
stored in several R scripts.
For example:
Script in the file "code1.r" contains the code:
a = 3; b = 5; c = a + b
Script in the file "code2.r" contains the code:
d = 10; e = d - c
Script in the file "code3.r" contains the code:
result=e/a
I understand that I could write those 3 scripts
2010 Mar 30
4
Code is too slow: mean-centering variables in a data frame by subgroup
Dear R-ers,
I have a large data frame (several thousands of rows and about 2.5
thousand columns). One variable ("group") is a grouping variable with
over 30 levels. And I have a lot of NAs.
For each variable, I need to divide each value by variable mean - by
subgroup. I have the code but it's way too slow - takes me about 1.5
hours.
Below is a data example and my code that is too
2010 Mar 09
2
looping through predictors
Dear R-ers,
I have a data frame data with predictors x1 through x5 and the
response variable y.
I am running a simple regression:
reg<-lm(y~x1, data=data)
I would like to loop through all predictors. Something like:
predictors<-c("x1","x2",... "x10)
for(i in predictors){
reg<-lm(y~i)
etc.
}
But it's not working. I am getting an error:
Error in