similar to: Substring a column vector

Is there a way of executing SAS codes in R environment?   Peter Maclean Department of Economics UDSM [[alternative HTML version deleted]]

I am trying to estimate a gamma function using real data and I am getting the following error messages. When I set a lower limit; the error message is "L-BFGS-B needs finite values of fn" ? For other method the error message is: Error in optim(x = c(0.105286666666667, 0.3472275, 2.057625, 0.329675,? : ? non-finite finite-difference value [1] The codes works fine for simulated data

Hi Mackay and anybody (a) Is it possible to select randomly (let say five grids) and plot? (b) Is it possible to plot five nearest grid in one figure? The original question and improved codes: #I am ploting gridded time series data. I would like the actual lat #and lon value appear on the graph-if possible inside the graph as #numbers. If there is also more elegant ways to plot the graphs I

I am estimating Value at Risk using PerfomanceAnalytics package. The?variables are stored in a data frame. I formated the data variables using zoo() and as.xtx() but it is not working. The working example is below. ##########################################################? reguire(zoo) require(PerformanceAnalytics) reguire(xts) ? year<- c(1991-12-30, 1992-12-30, 1993-12-30, 1994-12-30) R1

I have csv data that extend beyond the area I want for an existing map. I want using the boundaries of the polygon shape file as a cookie cutter so that I can overlay the csv data on map without including anything outside the map boundaries and create a dbf file or shapefile of the clipped data .  The reproducible example: ############################################### library(RColorBrewer)

I am estimating a large model by groups. How do you save the results and?returns the associated quantiles? For this example I need a data frame n?? ?xi??????? mu????????beta 1?? 0.1033614? 2.5389580 0.9092611 2? ?0.3401922? 0.5192882 1.5290615 3?? 0.5130798? 0.5668308 1.2105666 I also want to apply gevrlevelPlot() for each "n" or group. ? #Example n <- c(1, 1, 1, 1, 1, 1, 2, 2, 2,

In glm() you can use the summary() function to recover the shape parameter (the reciprocal of the dispersion parameter). How do you recover the scale parameter? Also, in the given example, how I estimate and save the geometric mean of the predicted values? For a simple model you can use fitted() or predicted() functions. I will appreciate any help. ? ? ? #Call required R packages require(plyr)?

Chaps, Perhaps this question is a little basic for this list but I''m not really sure of the simplest method or best tool for the job. I''ve created some images with `dd=/dev/zero ....` and I''m using them for the domUs now. Some of them have been running for a few months with no probs. Trouble is that I''d like to create a separate partition within the domU.

Thanks to Thomas Lumley for the very quick fix of the NextMethod(.Generic) bug. The patch enclosed in his message to r-help fixed that problem nicely. But..., I've got another one. x <- 1:4 attr(x,"foo") <- "bar" attributes(x < 4) returns NULL. The "foo" attribute has been lost in the "x < 4" operation. The blue book says that the

Morning chaps, From my understanding the puppet master must have a hostname of "puppet". Is this correct? I''d like to be able to call this box whatever I like. I think that I can do that within /etc/puppet/puppet.conf. -- John Maclean MSc (DIC) Enterprise Linux Systems Engineer -- You received this message because you are subscribed to the Google Groups "Puppet

I've set up a local webserver to store kickstart files for domUs. All parameters are respected apart from the network settings. DomU always gets DHCP. Can any one help to unwrap this one? Does one add hostname, ip, netmask and gateway values to the /etc/xen/blah.cfg file? # ---- domU kickstart file ----# url --url http://192.168.1.120/centos/5/os/i386 lang en_US.UTF-8 keyboard uk network

Hello there This is the first time I have used r-help message board so I hope I have got the right address. I am trying to check the residuals of a GLMM model(run using the package lme4). I have been able to check the residiuals of REMLs in lme4 using the following: m1<-lmer(vTotal~Week+fCollar+ (1|fCat), collars) res<-resid(m1) plot(res) qqnorm(res) library(MASS) par(mfrow=c(2,3))

I need help in indexing grouped data. In this excample (df1 data), the first child had a first immunization at age 2. The second child had the first, second and third immunization at age 5,10, and 12, the third child had first and second immunization at age 4 and 6 and the fourth child had the first immunization at age 2. I have df1 and I need to create df2 with and "ind' variable that

Hi Peter, The ssconvert tool (part of gnumeric) is very good at converting spreadsheets to csv-files. There is a wrapper in the "gnumeric" package on cran. Cheers, Thomas > Date: Fri, 4 Oct 2013 09:08:50 +0100 > From: Barry Rowlingson <b.rowlingson at lancaster.ac.uk> > To: Peter Maclean <pmaclean2011 at yahoo.com> > Cc: "r-help at r-project.org"

Dear R commnuity, Thanks a lot for your help. I want to read in tables, the problem is that the table is composed in a difficult way. In ariginal it looks like this: 669 736 842101610481029114711811166124312081128117611221026 9581024 992 685 720 829 925 995 96010241057116611501104106410711092 983 908 989 904 924 896 882 897 909 933 928 907 916 902 546 734 784 868 970 954

Hi, According to its man page substring() "expands (its) arguments cyclically to the length of the longest _provided_ none are of zero length". So, as expected, I get an error here: > substring("abcd", first=2L, last=integer(0)) Error in substring("abcd", first = 2L, last = integer(0)) : invalid substring argument(s) But I don't get one here:

Hi all, (and especially hi to Tomas Kalibera who accepted my patch sent yesterday) I believe that I have found another bug, this time in the substring function. The use case that I am concerned with is when there is a single (character scalar) text/subject, and many substrings to extract. For example substring("AAAA", 1:4, 1:4) or more generally, N=1000

Hello together, i have a question for "substring". I know i can filter a number like this one: bill$No<-substring(bill$Customer,2,4) in this case i get the 2nd, 3rd and 4th number of my Customer ID. But how can i do this, if i want the 2nd, 3rd and 4th number of a column. Like this one. I have: Mercedes_02352 Audi_03555 and now i want to filter this data.frame to 235 355 can you

On 2/20/19 7:55 PM, Toby Hocking wrote: > Update: I have observed that stringi::stri_sub is linear time complexity, > and it computes the same thing as base::substring. figure > https://github.com/tdhock/namedCapture-article/blob/master/figure-substring-bug.png > source: > https://github.com/tdhock/namedCapture-article/blob/master/figure-substring-bug.R > > To me this is a

Hi, In R < 3.0.0, we used to get: > substring(c(A="abcdefghij", B="123456789"), 2, 6:2) A B A B A "bcdef" "2345" "bcd" "23" "b" But in R >= 3.0.0, we get: > substring(c(A="abcdefghij", B="123456789"), 2, 6:2) [1] "bcdef"