similar to: plotting lines with missing data for x values

Displaying 20 results from an estimated 2000 matches similar to: "plotting lines with missing data for x values"

2008 Aug 10
2
ANOVA help
Hi, I'm doing anova on a matrix of multivariate data where I want to assess the effect of each column (element). My matrix is 86 rows x 31 columns. I've created a grouping factor of length 86 containing group assignments of 6 types. Then I run: x<- aov(matrix~grouping.factor) summary(aov.fit.raw, test="Wilks") This is working fine enough, but I'm getting different
2008 Aug 13
2
Naming dataframes, vectors etc within a loop
Hi there, I know this is probably a really simple question, but without the correct keywords, or knowledge of the correct function it is hard to search for on the net or within R. How do I increment a dataframe (or similar) name within a loop and assign data? A simple example would be: for(i in 1:10){ test<-i } BUT I want it to be test[i] --- in other words I want my stored data to
2008 Aug 05
3
Time series, least squares line
Hello, I have a time-series of standards measured for Refractive index. They are daily standards, however, I didn't run one everyday so some days have no data. I can plot the values, but the x-axis does not represent the correct time series (i.e. it's just an evenly spaced 1,2,3 type axis). I want to plot the points with some form of representitive date line on the x-axis. I don't
2008 Aug 05
2
95% CI bands on a Lowess smoother
Hi there, I'm plotting some glass RI values just by plotting plot(x) then I put on my lowess smoother lines(lowess(x)) now I want to put on some 95% Confidence Interval bands of the lowess smoother, but don't know how?? Thanks -- Gareth Campbell PhD Candidate The University of Auckland P +649 815 3670 M +6421 256 3511 E gareth.campbell@esr.cri.nz gcam032@gmail.com [[alternative
2008 Sep 21
2
Variable Selection for data reduction and discriminant anlaysis
Hello all, I'm dealing with geochemical analyses of some rocks. If I use the full composition (31 elements or variables), I can get reasonable separation of my 6 sources. Then when I go onto do LDA with the 6 groups, I get excellent separation. I feel like I should be reducing the variables to thos that are providing the most discrimination between the groups as this is important
2008 Aug 10
1
using IF command
Hey team, If I have a matrix: 1, 2, 3, 4, 4, 0, 1, 3, 0, 3 2 columns. I want to write an if command that looks at (in this case) row 3 and looks to see if either [3,1] or [3,2] has a zero in it. IF it does have a zero I want the zero to be placed in another matrix in the same position. I know how to do the latter part, I just can't get the if command to look at both cells and deal with
2008 Aug 10
1
Scripting - query
I have a vector: alleles.present<-c("D3", "D16", ... ) The alleles present changes given the case I'm dealing with - i.e. either all of the alleles I use for my calculations are present, or some of them. Depending on what alleles are present, I need to make matrices and do calculations on those alleles present and completely disregard any formula or other use of the
2008 Sep 01
1
LDA predictions
I've made an LDA model on some data from one source. I have some new data that I want to see if I can "place" to the sources in the LDA model. I used the predict function as follows: predict(wak.insitu.ld, wak.alr.alluvial) where wak.insitu.ld is an LDA model generated from some data and wak.alr.alluvial is new data of similar origin. When I look at the results, there is 86
2008 Nov 18
1
Symbols output
Hi everyone, I have a PCA plot that I'm writing about in the text. There were so many symbols in different colours on it that I didn't include a legend in the plot as it would be useless. So what I was hoping to do was to talk about each set of replicates in the text and when I do that, use their coloured symbol in the text. So what I want to do is to get R to create some high quality
2008 Aug 12
2
ANOVA tables - storing F values
When I run a summary(anova) I get output for all of the elements (columns) as these are multiple - single anova results. Can I store the F values? I can't find the attribute of the fitted model attributes(fit) that stores these F values, and for that matter, P values. Thanks -- Gareth Campbell PhD Candidate The University of Auckland P +649 815 3670 M +6421 256 3511 E
2007 Nov 05
1
Combining Density plots
Hello, What I am trying to do is: Generate a density plot of a population of data. This data has a bimodal distribution so I've isolated a couple of possible sub-populations and I want to overlay these two density plots over the first to see whether they are contributing to the bimodal population. I can do this fine with plot(density(...)) and lines(density(...)) . But the resulting plots
2008 Aug 11
2
sampling
Hello, I have a matrix and I want to sample 20 rows that are the the percentiles of 0-100 in 0.05 increments. I have a vector of my sequence (0, 0.05, 0.10, 0.15,....1.0) and also a normalised vector of rownumbers. That is, there are 234 rows (for example) so I do perc<-c(1:234/234) which looks like a bunch of numbers from 0 - 1. In Excel (which I try not to use at every possible
2008 Nov 18
0
RES: Symbols output
Sorry, the code is incomplete. You get a better result this way... postscript('Circle.eps',paper='special',width=4,height=4) par(mar=c(0,0,0,0)) plot.new() points(0.5,0.5,pch=21,cex=50,bg='gray') dev.off() -----Mensagem original----- De: Rodrigo Aluizio [mailto:r.aluizio em gmail.com] Enviada em: ter?a-feira, 18 de novembro de 2008 19:28 Para: 'Gareth Campbell'
2008 Nov 24
0
plot Principal Components axes on original data
Hello I'm writing an example PCA analysis for some students. I've done PCA on a 2-column matrix to show it at the most simple form (a rotation of two axes). I can't, however, figure out how to plot the rotated axes as lines over top of the original data plotted on the x-y. Does anyone know how to do this? It will be a good way to show how the rotated axes describing the most
2003 Jul 15
2
R, geochemistry, ternary diagrams
I'm in e-mail contact with a geochemist who maintains a well regarded geochemistry web site. He's drawing diagrams either with a Turbo Pascal program running in a DOS window or with Excel. I'm trying to persuade him that R would be a better choice. Something he's particularly keen on is ternary diagrams. I think he is talking about ternary phase diagrams, and if so, it looks as
2008 Sep 22
1
R-help Digest, Vol 67, Issue 23
Warranty on Accuracy, Precision, Legality, ... of R in Research (These questions may well have been raised.) What is the implied warranty of using R for research & publications, consulting, etc.? Alternately, how does one obtain such a warranty? Your answers will be much appreciated. Perhaps you can point me to some websites which discussed this subject in the past. Thanks & regards
2004 Oct 05
1
QOS on each interface
I have a firewall with 3 interfaces DMZ, INTERNET, LAN. Does anyone have an example script to do QOS on multiple intefaces using htb? Gareth Segree mailto:Gareth.Segree@gleanerjm.com <mailto:Gareth.Segree@gleanerjm.com> Technical Support Analyst The Gleaner Company Ltd. 7 North Street Kingston Tel: 922-3400
2004 Jul 08
1
Help with dual internet connection
I have 2 connections to the internet. 1 is an ADSL the other is a 3MB link over satellite. This is a portion of my firewall script ip route flush table 3 2> /dev/null ip rule delete table 3 2> /dev/null ip route add table 3 127.0.0.0/8 dev lo scope link ip route add table 3 89.0.0.0/8 dev eth0 scope link ip rule add fwmark 3 table 3 ip route add table 3 default via $isp2_ip dev eth3 ip
2003 Jun 04
3
Limiting Users
When using windows NT and Netware there are ways of limiting the logins of users such as only allowing them on between 9am - 5pm and limiting maximum concurrent connection to one. Is there a way of enforcing these restrictions through samba or similar? Many thanks Gareth Norman
2002 Dec 30
2
Maildir format
Started using dovecot and I am very impressed by its speed. I am confused by what it is expecting the format of the Maildir directory to be in. I currently have ~/Maildir which contains new, cur, and tmp all containing email that should be in my inbox and it pops up correctly as such when I connect to dovecot using Mutt. After the connection a new .INBOX is created under ~/Maildir with sym