Displaying 20 results from an estimated 2000 matches similar to: "drawing a line that shifts from solid to broken"
2006 Aug 24
1
Using a 'for' loop : there should be a better way in R
I need to apply a yearly inflation factor to some
wages and supply some simple sums by work category. I
have gone at it with a brute force "for" loop approach
which seems okay as it is a small dataset. It looks
a bit inelegant and given all the warnings in the
Intro to R, etc, about using loops I wondered if
anyone could suggest something a bit simpler or more
efficent?
Example:
2012 Jun 24
2
Defining multiple variables in a loop
Good day,
For lack of a better solution (or perhaps I am ignorant to something
more elegant), I have been bootstrapping panel data by hand so to
speak and I would like to know if there is a way to define multiple
variables in a loop using the loop variable. I found a post (here:
https://stat.ethz.ch/pipermail/r-help/2002-October/026305.html ) that
discussed naming multiple variables but it
2010 Aug 20
1
Shifting of Principal amount while calculating Present Value
Dear R Helpers
I have following data -
cash_flow = c(7, 7, 107) # 107 = Principle 100 + interest of 7%
t = c(1,2,3)
and zero rate table as
rating year1 year2 year3
AAA 3.60 4.17 4.73
AA 3.65 4.22
4.78
A 3.72 4.32 4.93
BBB 4.10
2013 Apr 03
1
linear model coefficients by year and industry, fitted values, residuals, panel data
Hi R-helpers,
My real data is a panel (unbalanced and with gaps in years) of thousands of firms, by year and industry, and with financial information (variables X, Y, Z, for example), the number of firms by year and industry is not always equal, the number of years by industry is not always equal.
#reproducible example
firm1<-sort(rep(1:10,5),decreasing=F)
year1<-rep(2000:2004,10)
2011 Jul 27
2
for loop help
I am having a hard time putting the below into a loop, where it pulls out ppt from all he stations I have versus having to go through and hard code the data to the specific stations. I tried
stnID <- stnid[which(duplicated(stnid)==FALSE)]
for(i in 1:length(stnID))
{
ppt[i] <- ppt[which(stnid==[i])]
}
but it doesn't like to use the which function inside a for loop? Any idea's here is
2007 Jun 29
1
Assign name to a name
I would like to know how I can assign a name to a name. I have a
dataset that has different years in it. I am writing scripts using R
and I would like to give a month a generic name and then use the generic
name to do different analysis. The reason for the generic name would be
so that I only have to change one thing if I wanted to change the year.
For example.
Year1 = 1999
datayear <-
2013 Jun 07
4
matched samples, dataframe, panel data
I R-helpers
#I have a data panel of thousands of firms, by year and industry and
#one dummy variable that separates the firms in two categories: 1 if the firm have an auditor; 0 if not
#and another variable the represents the firm dimension (total assets in thousand of euros)
#I need to create two separated samples with the same number os firms where
#one firm in the first have a corresponding
2009 Apr 16
0
incorrect handling of NAs by na.action with lmList (package nlme) (PR#13658)
Greetings,
I just found out a bug in the function lmList of the package nlme with R
2.8.1 running under windows XP 32-bits. I have a data table with various
columns corresponding to continuous variables as well as treatment
variables taken on several years and several sites. Here is an example :
Id year treatment A treatment B variable1
variable2 variable3
1
2008 Dec 10
2
how to merge panel data stored by variable?
Hi,
I have two datasets stored in tab-separated format in the following way
file1:
country year1 year2
Germany var1 var1
Hungary var1 var1
file2:
country year1 year2
Germany var2 var2
Hungary var2 var2
I can easily read in these files, but how can I merge them as a panel
dataset?
Thanks,
Viktor
2010 Aug 24
2
chisq.test on samples of different lengths
Hello,
I am trying to see whether there has been a significant difference in whether people experienced damages from wildlife in two different years. I therefore have two columns:
year 1:
yes
no
no
no
yes
yes
no
year 2:
no
yes
no
yes
I wanted to do a chisq.test, but if I enter it this way:
chisq.test(year1, year2)
I get the error saying the columns are two different lengths. So then I tried
2011 Aug 03
1
Need help with xyplot
Consider I have the following data:
AgeRange AgeOfPerson PersonNo FriendsAtYear0 FriendsAtYear1 FriendsAtYear2 FriendsAtYear3 FriendsAtYear4 FriendsAtYear5
10 - 12 11 1 0 1 2 2 3 3
10 - 12 12 2 0 1 2 2 3 3
15 - 18 13 3 1 2 3 4 6 7
15 - 18 14 4 1 3 4 5 7 7
30 - 40 33 5 3 5 5 6 8 9
30 - 40 36 6 4 4 4 4 4 4
I want to plot the number of friends against number of years, as to show how friendships
2006 Dec 14
1
legend/plotmath/substitute problem
Dear R Experts,
I am trying to produce a legend for a series of plots which are
generated in a loop. The legend is supposed to look like this:
2000: gamma=1.8
where gamma is replaced by the greek letter and both the year and the
value of gamma are stored in variables.
Everything works fine as long as I have only one data series:
year = 2001
g = 1.9
plot(1)
legend('top',
2008 Oct 12
0
false convergence (8) after removal of the two-way interaction
Dear All,
I am working with a generalized linear mixed-effects model with poisson error using the lme4 package in R. I created a model with the lmer function including some main effects, three two way interactions and two random effects.
The model works well, but I have troubles when removing on of the two-way interactions. The Warning message: "In mer_finalize(ans) : false convergence
2012 Jul 09
4
Skipping lines and incomplete rows
I have a text file that has semi-colon separated values. The table is nearly
10,000 by 585. The files looks as follows:
*******************************************
First line: Skip this line
Second line: skip this line
Third line: skip this line
variable1 Variable2 Variable3 Variable4
Unit1 Unit2 Unit3
10 0.1 0.01 0.001
20
2010 Feb 24
1
Remove missing observations
Hi everyone
I have the following problem: My dataframe has 3 variables: ID, Year and
and an outcome variable. The dataframe contains repeated measurements
because the subjects filled out a questionnaire every year. The time span
covers 2 years.
Now I want to check if there is a significant change in the outcome over
the 2 years with a paired wilcox.test. The problem: Not every subject
2007 Jul 04
0
how to plot a monthplot from a ts object where all individual years are shown (e.g. as lines) and can be compared with a "average or median " year?
Dear R help,
I'm working with regular 8-daily time-series from 2000 up till now and
would like to be able to compare years with each other. E.g. by creating
a monthplot via the result of the stl() method it looks ok> but I was
wondering whether there exist other methods to plot the different years
as lines on top of each other such that years can be compared with each
other (temporal
2011 Dec 01
0
Error message: object 'A' not found
I ran the following code:
And I run into problems with the last line of code (when it says
hn<-......). I keep getting an error code: Error in distsamp(~hab ~ 1,
peldist, keyfun = "halfnorm", output = "density", :
object 'A' not found
I would appreciate any and all help.
rm(list=ls(all=TRUE)) #clear the computer's
2012 Feb 19
2
barplot with more than 1 variable
Dear R listers,
I am trying to produce a simple (for a stata user) barplot with 4
countries on the x axis, each country observed in 2 subsequent years
and 3 variables.
Basically, I should have three bars for each year for each country. I
am attaching the chart I made in Stata, but I am not sure you'll
manage to see it!
I did the following:
#here I create the data-set TUSE2. The vectors mw, st
2010 Feb 26
3
Preserving lists in a function
Dear R users,
A co-worker and I are writing a function to facilitate graph plotting in R. The function makes use of a lot of lists in its defaults.
However, we discovered that R does not necessarily preserve the defaults if we were to input them in the form of list() when initializing the function. For example, if you feed the function codes below into R:
myfunction=function(
list1=list
2013 Apr 18
1
Arranging two different types of ggplot2 plots with axes lined up
Hi all,
I want to arrange two ggplot2 plots on the same page with their x-axes
lined up - even though one is a boxplot and the other is a line plot. Is
there a simple way to do this? I know I could do this using facetting if
they were both the same type of plot (for example, if they were both
boxplots), but I haven't been able to figure it out for two different types
of plots.
Below is my