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Hi, Check the FAQ 7.31 https://cran.rstudio.com/doc/FAQ/R-FAQ.html#Why-doesn_0027t-R-think-these-numbers-are-equal_003f And read the posting guide too... https://www.r-project.org/posting-guide.html HTH, Ivan -- Dr. Ivan Calandra TraCEr, Laboratory for Traceology and Controlled Experiments MONREPOS Archaeological Research Centre and Museum for Human Behavioural Evolution Schloss Monrepos 56567 Neuwied, Germany +49 (0) 2631 9772-243 https://www.researchgate.net/profile/Ivan_Calandra On 07/06/2017 16:32, li li wrote: > Hi all, > In checking my R codes, I encountered the following pro...

Hi all, In checking my R codes, I encountered the following problem. Is there a way to fix this? I tried to specify options(digits=). I did not fix the problem. Thanks so much for your help! Hanna > cdf(pmass)[2,2]==pcum[2,2][1] FALSE> cdf(pmass)[2,2][1] 0.9999758> pcum[2,2][1] 0.9999758 [[alternative HTML version deleted]]

Hi everybody, Question: why are my dataframe and numeric variables a character? I read an excel file via readxl but my dataframe is a character, and numeric variables, eg "yi", are also a character. My excelfile is in English numeric Sometimes the dataframe was indeed a dataframe, but I do not know why it did sometimes. Thank you in advance, Roberto PS I used "guess". The

class("dat") is different from class(dat), which is what you actually want. On 17-11-17, P. Roberto Bakker wrote: > Hi everybody, > > Question: why are my dataframe and numeric variables a character? > > I read an excel file via readxl but my dataframe is a character, and > numeric variables, eg "yi", are also a character. > My excelfile is in English

Dear Zeileis: Thank you very much abou On Tue, Sep 19, 2017 at 4:13 AM, Achim Zeileis <Achim.Zeileis at uibk.ac.at> wrote: > > > On Tue, 19 Sep 2017, AbouEl-Makarim Aboueissa wrote: > > Dear All: good morning >> >> I am trying to graph the function y=f(x)=1/x over the interval (-5,5). But >> I am getting an error message. Please see below. >>

Say I have a dataset that looks like Location Year GW_Elv MW01 1999 546.63 MW02 1999 474.21 MW03 1999 471.94 MW04 1999 466.80 MW01 2000 545.90 MW02 2000 546.10 The whole dataset is at http://doylesdartden.com/ExampleData.csv and I use the code below to do the graph but I want to do it without MW01. How can I

...was nevertheless required and will be useful as I gather more data. I don't have much experience with multidimensional scaling, so any advice/reading sources is/are welcome. Thanks, Radu -- Radu P. Iovita, Ph.D. Forschungsbereich Altsteinzeit Römisch-Germanisches Zentralmuseum Mainz Schloss Monrepos 56567 Neuwied Germany Web: http://radu.iovita.googlepages.com/ [[alternative HTML version deleted]]