similar to: simulated correlated vectors

Displaying 20 results from an estimated 8000 matches similar to: "simulated correlated vectors"

2009 Nov 21
2
Fw: Re: title problem
It seems that there is a problem in displaying subtitle in general, independently from multi-plot display. when I do plot (c(1,2,3), c(9,8,7), type = "l") title(main = "Main title", sub ="Sub title",cex.main=2, cex.sub = 2) subtitle doesn't get displayed > --- On Sat, 11/21/09, David Winsemius <dwinsemius at comcast.net> > wrote: >
2011 Aug 17
9
too many var in lm
Hello, It might be an easy question but if you have many variables to fit in the lm function, how do you take all without specifying var1+var2+...+var2100 in the terms parameter in response ~ terms? Cheers, Carol
2012 Jul 20
3
function for inverse normal transformation
Hi, What is the function for inverse normal transformation? Thanks, Carol [[alternative HTML version deleted]]
2009 Nov 21
4
title problem
Hi, I got problem in using title function to create a title for multiple plots presented together by par. As can be seen in the attached file, the title is displayed truncated and the subtitle doesn't get displayed. Here is the code: par(mfrow = c(1,2)) plot(c(1,2,3), c(9,8,7)) plot(c(1,2,3), c(9,8,7)) title(main = "Main title", sub ="Sub title",outer = TRUE,
2012 Feb 15
2
Error in rep.int(boxwex, n) : negative length vectors are not allowed
Dear All, I tried to invoke plot for a matrix of?196475 x2 dimension. I loaded the data with read.table. On one dimension, there are strings (names) and on the other dimension, the floats between 0 and 1. When I invoked plot by setting x to names and y to floats and ylim = c(0,1), I got the following error message: Error in rep.int(boxwex, n) : negative length vectors are not allowed Does it
2009 Oct 09
2
plot the same types of graphics on the same R graphic device
Hi, How to plot the same types of graphics on the same R graphic device? Suppose that we want to plot a vector y against x (using plot for instance). How is it possible to plot y against x for different values of these two vectors on the same device so that the plots could be compared? Cheers, Carol [[alternative HTML version deleted]]
2011 Jan 12
2
Access R Help Content From R
Have UI that simplifies running code from another (internal) package, allowing user to set values on fields I basically grabbed from results of calls to formals() for various functions. That works fine for the most part. But it was requested to investigate some type of popup help or something for each field. Since I already wrote the information in the dot-Rd files for what should be displayed,
2012 Mar 09
4
sort dates
Hello, How is it possible to sort dates in R? Cheers, Carol
2007 Nov 15
2
how to extract the elements of a list of vectors in a fixed position?
Hi, How is it possible to extract athe elements of a list of vectors in a fixed position? suppose that I have a list of 2-element vectors, how can I extract the 2nd element of all vectors in the list? Can it be done with indexing and not by element name? Thanks carol So in this example, I want to extract 2 and 4 v = list (c(1,2), c(3, 4)) > v [[1]] [1] 1 2 [[2]] [1] 3 4
2009 Nov 02
7
qqplot
Hi, We could use qqplot to see how two distributions are different from each other. To show better how they are different (departs from the straight line), how is it possible to plot the straight line that goes through them? I am looking for some thing like qqline for qqnorm. I thought of abline but how to determine the slope and intercept? Best wishes, Carol
2009 Nov 13
2
survreg function in survival package
Hi, Is it normal to get intercept in the list of covariates in the output of survreg function with standard error, z, p.value etc? Does it mean that intercept was fitted with the covariates? Does Value column represent coefficients or some thing else? Regards, ------------------------------------------------- tmp = survreg(Surv(futime, fustat) ~ ecog.ps + rx, ovarian,
2009 Apr 06
2
approximation function
Hi, Having a set of values (non-time series data), what are the approximation functions that could determine the trend of the values? Cheers, Carol [[alternative HTML version deleted]]
2009 Sep 11
3
how to determine if a variable is already set?
Hi, It might be a primitive question but how it is possible to determine if a variable is initialized in an environment? Suppose that we start a R session and wants to run a script which use the variable i. Which function could evaluate if i is already initialized or not and if not, then ask interactively the user to set it? This is to avoid the error message: object i is not found. Regards,
2009 Apr 28
3
truehist and density plots
Hi, I wanted to plot the histogram of a vector and then, plot the density function of subsets of the vector on the histogram. So I use truehist in MASS package and lines(density) as follows: length(b) = 1000 truehist(b) lines(density(b[1:100])) however the density plot of the first 100 points exceeds the max of y axis (see attached). how is it possible to make a graphics so that the density plot
2013 Jan 27
2
rpart
Hi, When I look at the summary of an rpart object run on my data, I get 7 nodes but when I plot the rpart object, I get only 3 nodes. Should the number of nodes not match in the results of the 2 functions (summary and plot) or it is not always the same? Look forward to your reply, Carol -------------------------------------------- ?summary(rpart.res) Call: rpart(formula = mydata$class ~ ., data
2008 Jul 20
2
problem with read.table
Hi, Although I set check.names to FALSE in read.table, the duplicate names get modified. What should be done in this case? the text file to be read by read.table AM2      AM2     AM2     FAL 2               3             4         5 1               -1           -3        -2 t = read.table ("my_file", check.names = FALSE, header = T) > t AM2      AM2.1     AM2.2     FAL
2012 May 10
1
storage of matrices of diff dimension together
Hi, It might be a trivial question but how do you store matrices of different dimensions read from a file or in a loop together? The best solution might be a list but I don't store the first matrix  correctly:  m = rbind(c(1,2),c(3,4),c(5,6)) t=rbind(c(1,2),c(5,6))  l = list(m) > l = list(l,t)    #I assumed that at the begining I don't have m and t at the same time to do list(m,t),
2005 Jul 01
5
Generating correlated data from uniform distribution
Dear R users, I want to generate two random variables (X1, X2) from uniform distribution (-0.5, 0.5) with a specified correlation coefficient r. Does anyone know how to do it in R? Many thanks! Menghui
2010 Mar 02
2
turn character string into unevaluated R object
Hi, How to turn a character string into an unevaluated R object? I want to load some files in a directory into data matrix R objects. I could do this with read.table and assign (see below). Then, I want to turn the character string representing a file name (the evaluated expression of i) into an unevaluated R object. Basically, I want to create matrices whose names are the same as the related file
2010 Sep 17
3
some problems reported in 00check.log
Hi, 1- How is it possible to use the name of a generic function as the name of a function which is not related to the generic function? For example, if I define predict.my.function, R will relate it to predict function and I'll get the following warning when I run R CMD check * checking S3 generic/method consistency ... WARNING predict: ? function(object, ...) predict.my.function