search for: logaritm

Hello! I have a problem which I have tried to solve for several days now.. I have plottet a lineplot.CI in the library "sciplot", and I am trying to plot it with a logaritmic y-axis (with exponential base). The problem is that; when I type "log "y"", the axis transforms into the logaritmic of base 10. I wonder if someeone could tell me how to specify that I would like to use the exponential logaritmic y-axis. I have tried a lot (but obviously not...

Hello! Thank you for answering! What I am trying to do is to plot my raw values (biomass of different species) on a logaritmic y-axis with the base of e. When I type "log="y"", the axis transforms into a logaritmic axis with the base of 10. Best regards, Elisabeth > Dear Elisabeth, > > I'm not sure if I have understood your question -- are you trying > to use a different logarith...

Hi, I have processed measurements of a rough surface to a heigh-height correlation plot. What the meaning of this exactly is, is not important. Only that it is a plot that had two (almost ) linear parts when plotted on a logaritmic scale. In this plot, I want to draw the best fitting lines for these linear parts but I just can't get it done. It is easy when the scales are linear but as you might have imagined, the scales being logarithmic don't add to the simplicity of my problem. Thanks in advance! Joren [[alter...

Hi there, sorry for troubling everybody once again, I've got a problem rewriting Sarkar's function for rewriting the tick locations in a logaritmic way (s. http://lmdvr.r-forge.r-project.org/code/Chapter08.R): His example works for log 2 but I need log e (natural logarithm). My problem is that if I replace 2 with "e" (using paste()), I get the error message that the location isn't a numeric value. Is there any way to get this...

...ect.org" <r-help at r-project.org> Sent: 5/10/10 11:20 AM Subject: [R] [Fwd: Re: Plotting log-axis with the exponential base to a plot with the default logarithm base 10] Hello! Thank you for answering! What I am trying to do is to plot my raw values (biomass of different species) on a logaritmic y-axis with the base of e. When I type "log="y"", the axis transforms into a logaritmic axis with the base of 10. Best regards, Elisabeth > Dear Elisabeth, > > I'm not sure if I have understood your question -- are you trying > to use a different logarith...

Hi, from what you're writing: "The logaritmic transformation "shapiro.test(log10(y))" says: W=0.9773, p-value= 2.512e-05." it seems the log-values are not distributed normally and so original data are not distributed like a log-normal: the p-value is extremally small! Other tests for normality are available in package: nortes...

...or 10 as a base)? Elisabeth > On 09-May-10 18:10:27, Elisabeth Bjerke Rastad wrote: >> Hello! >> I have a problem which I have tried to solve for several days now.. >> I have plottet a lineplot.CI in the library "sciplot", and I am >> trying to plot it with a logaritmic y-axis (with exponential base). >> >> The problem is that; when I type "log "y"", the axis transforms >> into the logaritmic of base 10. >> >> I wonder if someeone could tell me how to specify that I would like >> to use the exponential loga...

Hi, Does any one know how we can decide on the correct transformation in (avas and ace) after having drawn the graphs y,g(y) x ,s(x) and g(y) ,s(x) . Is it possible by only looking at patterns the graphs follow for example when y ,g(y) shows a logaritmic pattern can we say that log transform on y is suitable? Thanks for your help. Regards [[alternative HTML version deleted]]

Given this example mean.values<-colMeans(VADeaths) mean.values<-apply(VADeaths, 2, mean) median.values<-apply(VADeaths, 2, median) dotchart(VADeaths, gdata=mean.values) dotchart(VADeaths, gdata=median.values) is it possible to ?combine? a single dotchart showing both the mean and the median for each single group (with different plotting symbols)? ?is it that possible with the use of

...ch a density function or Gaussian function which has logarithmic scales on x axis. For example I tried: == plot(hist(y),log="x") or plot(hist(log10(y)),log="x") == But with no avail. I want my axis like: 1,10,100 What would be other methods to test whether the data are logaritmically distributed. A last question to the Shapiro-Wilk test. Were can I get critical parameters? I mean I get for my distribution: W=0.9686, p-value=6.887e-07. What does that mean? Yes I have got some books about statics, but none of them says what one should do with the values then. The logari...

Hi! <http://r.789695.n4.nabble.com/file/n4651293/qq.png> We are stuck with a problem considering the qqplot of a dataset. We are trying to discover what kind of distribution this is. We already tried to normal, exponential or the logaritmical distribution but none of those are able to solve our problem. Is there someone able to tell us what kind deformation we should try? (I'm sorry for the horrible English but I'm not a native speaker) Thanks! Nathan -- View this message in context: http://r.789695.n4.nabble.com/QQp...

Hello R Users! I'm using lattice to produce some graphs with logaritmic y-scales. I use the command xyplot(hits ~ c(1:1024), data=eichData, type="S", scales=list(y = list(log=10))) to create the plot. This is fine, except for the automatically choosen tick marks. I'd like to have a major tick at the 10^n location and minor ticks in between which corre...

...and labels in a boxplot as described for a xyplot below (thread in maillinglist in may 2003). Does anybody knows how it works? Thanks in advance Thomas Thread from May 2003 (http://tolstoy.newcastle.edu.au/R/help/03a/5604.html) Hello R Users! I'm using lattice to produce some graphs with logaritmic y-scales. I use the command xyplot(hits ~ c(1:1024), data=eichData, type="S", scales=list(y = list(log=10))) to create the plot. This is fine, except for the automatically choosen tick marks. I'd like to have a major tick at the 10^n location and minor ticks in between which corre...

Good day, I'm trying to get more time series in one plot. As there are bigger differences in values of variables I need logaritmic y axis. The code I use is the following: nvz_3_data <- read.csv('/home/tomas/R_outputs/nvz_3.csv') date <- (nvz_3_data$date) NO3 <- (nvz_3_data$NO3) NH4 <- (nvz_3_data$NH4) date_p <- as.POSIXct(date, "CET") par(mfrow=c(2,1), ylog = TRUE, yaxp = c(0.01, 100, 3))...

Hy, I have dowloaded the R-version for Windows. I would want to plot different pictures on the same device, but I am not able to do it (i.e I would like make 2 qqplot on the same graphic). Can you help me? Thanks in advance Davide reply to: d.tarfanelli at libero.it -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

..., where the life time of local variabels only extends to the closing braces, while global variables can be reached everywhere. The reason for automatization is that I'll have to repeat the procedure more than a hundred times, while making overview pair waise plots of my data, with both this logaritmic regression and several others (exponential, monomoelcular, logistic, Gompertz and Weibull). Wish you all the best, Joel _________________________________________________________________ Nya Windows 7 gör allt lite enklare. Hitta en dator som passar dig! http://windows.micr...

Hi, I have a model, which has a logaritmic response, but there is an offset for this response. I use optimize to find a value to minimise the residuals of the model: f2 <- function(x,df) sum(summary(lm(log((y-x)/Mnd) ~ I(1e+05/(8.617*(Temp + 273.16))), df))$residuals^2) start <- optimize(f2,c(0,min(y)),df=df)$minimum mod <- lm(l...

...ives a better idea of the distribution than a linear one. I'm not very deep into statistics and I was wondering whether I can use the "density" method at all, if yes: shall I be aware of how to set the parameters of this function or is standard enough (I think especially for the "logaritmic" data, it could be better to use other parameters... ) Does anybody know something about "posteriory pdf"? And then, are there methods how to compare density functions and how to quantify their difference? Sorry for all these questions. I would be happy, if anybody could give me a...

Hi, I want to plot a graph and here is my code: ec<-rep(0,length(e)) fc<-rep(0,length(f)) plot(e,ec,type="p",col=1,pch=19) points(f,fc,col=2,pch=20) legend(1.0e+08,1.0,c("dog", "human"),text.col="green4",pch=c(19,20),col=c(1,2)) my major problem here is the x-axis is too large in scale and its very hard for me to read the

Hi, How would I go about plotting all 8 columns of a data.frame on a simple line graph. i.e. eight lines and sets of points, differentiated by line pattern or colour)? An what further arguments would I need to invoke a log scale on the y-axis of that same plot (normal x-axis)? Cheers, Jeremy