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See ?data On 28.05.2023 10:53, james carrigan wrote: > Dear Sir or Madam > I?m trying to compile a collection of datasets that require use of the following hypothesis tests. > Are there datasets within the R library that I can get access to? > Kind regards > James Carrigan > > Hypothesis Testing > t.test(X,Y) > ? pe...

Dear Sir or Madam I?m trying to compile a collection of datasets that require use of the following hypothesis tests. Are there datasets within the R library that I can get access to? Kind regards James Carrigan Hypothesis Testing t.test(X,Y) ? performs a two sample t-test between X and Y t.test(X,Y,paired=TRUE) ? performs a paired t-test between X and Y prop.test(x = c(a, b), n = c(n1, n2)) ? performs a 2-sample test for equality of proportions with continuity correction Sent from my iPad Sent from...

...= AIC + 2K(K+1)/(n-K-1), but not sure of how K is calculated or how to extract that value from either an AIC or logLik calculation. This is probably more of a basic statistics question than an R question, but I thank you for your help. -Ben Osborne -- Botany Department University of Vermont 109 Carrigan Drive Burlington, VT 05405 benjamin.osborne at uvm.edu phone: 802-656-0297 fax: 802-656-0440

...nt command for readLines? Alternatively, either immediately after reading into R or once the data set has been converted to a data frame, what is the appropriate command (or appropriate use of is.na) to convert my -99.99s to NAs? Thanks, Ben Osborne -- Botany Department University of Vermont 109 Carrigan Drive Burlington, VT 05405 benjamin.osborne at uvm.edu phone: 802-656-0297 fax: 802-656-0440

I just joined the mailing list after seeing this e-mail in the mailing list archives. Does anyone have any idea as to why this may be happening? I am having this exact problem on a Dell Poweredge 1855. Jeremy Carrigan ****************************************Original E-mail from Mailing List Archives******************************************** * To: <centos at xxxxxxxxxx <mailto:centos at DOMAIN.HIDDEN> > * Subject: [CentOS] mount problem on LVM2 w/ kernel-2.6.9-42.0.2 * From: "Heitor A.M. Card...

...ix every time I run a loop, and I want a new matrix with each run, with an appropriate new name. i.e.: for(i in 1:5){... matrix.i<-some values ...} so that in the end I would have: matrix.1 matrix.2 matrix.3 matrix.4 matrix.5 Thanks, Ben Osborne -- Botany Department University of Vermont 109 Carrigan Drive Burlington, VT 05405 benjamin.osborne at uvm.edu phone: 802-656-0297 fax: 802-656-0440

What is the difference between the two R-squareds returned for a linear regression by summary(lm...)? When might one report multiple vs. adjusted R-squared? Thank you, Ben Osborne -- Botany Department University of Vermont 109 Carrigan Drive Burlington, VT 05405 benjamin.osborne at uvm.edu phone: 802-656-0297 fax: 802-656-0440

...s by setting xlim=c(min(c(data1,data2,data3)),max(c(data1,data2,data3))) however, there are some NAs and Infs in these data sets, and min(data1) and max(data1) both return NA, as with data2 and data3. (These are time series). Thank you, Ben Osborne -- Botany Department University of Vermont 109 Carrigan Drive Burlington, VT 05405 benjamin.osborne at uvm.edu phone: 802-656-0297 fax: 802-656-0440

...fficient way to re-arrange them? Thanks a lot for any assistance or advice! Sincerely, Paul Simonin -- Paul W. Simonin Graduate Research Assistant, MS Program Vermont Cooperative Fish and Wildlife Research Unit The Rubenstein School of Environment and Natural Resources University of Vermont 81 Carrigan Dr. Burlington, VT 05405 Ph:802-656-3153

...quot;)) # also gives the same result but returns AIC: NA ## Is it possible to model a lognormal distribution without having to transform ## the data themselves? (i.e.: fit1<-lm(log(BA)~Year,data=pdat.sp1.65.04) Thanks in advance, Ben Osborne -- Botany Department University of Vermont 109 Carrigan Drive Burlington, VT 05405 benjamin.osborne at uvm.edu phone: 802-656-0297 fax: 802-656-0440

...t new to R. Thank you very much for any answers, tips, suggestions, etc.! Best wishes, Paul Simonin -- Paul W. Simonin Graduate Research Assistant, MS Program Vermont Cooperative Fish and Wildlife Research Unit The Rubenstein School of Environment and Natural Resources University of Vermont 81 Carrigan Dr. Burlington, VT 05405 Ph:802-656-3153

...s?" I can't seem to find this anywhere in the help documentation. For example, I want to count the number of occurences of a certain value in a column of a data frame: What do I have to do to tell R to "Count?" Thanks, Ben Osborne -- Botany Department University of Vermont 109 Carrigan Drive Burlington, VT 05405 benjamin.osborne at uvm.edu phone: 802-656-0297 fax: 802-656-0440

...;-"(`*tmp*`, i, 1, value = NULL) : number of items to replace is not a multiple of replacement length # Because: > i<-1 > summary(as.name(paste("fit",i,sep=""))) Length Class Mode 1 name name > -- Botany Department University of Vermont 109 Carrigan Drive Burlington, VT 05405 benjamin.osborne at uvm.edu phone: 802-656-0297 fax: 802-656-0440

...< 13 < ... < 31 > test<-days(mans.met$date[4]) > test [1] 4 31 Levels: 1 < 2 < 3 < 4 < 5 < 6 < 7 < 8 < 9 < 10 < 11 < 12 < 13 < ... < 31 > Any suggestions will be appreciated. -Ben Osborne -- Botany Department University of Vermont 109 Carrigan Drive Burlington, VT 05405 benjamin.osborne at uvm.edu phone: 802-656-0297 fax: 802-656-0440

...ly one row. This may be a simple comma problem, but I think it has something to do with the lists. Also, if there is a way to do this without the foreloop, I'd be happy to hear about it. Any suggestions will be appreciated. Thanks, Ben Osborne -- Botany Department University of Vermont 109 Carrigan Drive Burlington, VT 05405 benjamin.osborne at uvm.edu phone: 802-656-0297 fax: 802-656-0440

...to know is why I can call any ith of unique(mans.met$yearmo[i]) by itself, but not in a loop. Or, perhaps there is an even easier way to extract the year and month from the date column on the fly to compute these summaries? Thanks, Ben Osborne -- Botany Department University of Vermont 109 Carrigan Drive Burlington, VT 05405 benjamin.osborne at uvm.edu phone: 802-656-0297 fax: 802-656-0440