Re: [R] i need help for var.test()

2015-01-08 Thread S Ellison
...@lists.r-project.org Subject: [R] i need help for var.test() Dear Sir or Madam, i want to use the var.test() (f.test()) for n samples. But in R the var.test() can only used for variances of two samples. In the intruductions stands: Performs an F test to compare the variances of two samples from

Re: [R] i need help for var.test()

2015-01-08 Thread Gerrit Eichner
Hello, Sait, take, for example, a look at bartlett.test(), but keep in mind that Bartlett's test is quite sensitive to deviations from normality. Levene's test (e.g., in leveneTest() in package car) is said to be more robust. Hth -- Gerrit On Thu, 8 Jan 2015, sait k wrote: Dear Sir or M

Re: [R] i need help for var.test()

2015-01-08 Thread Marc Schwartz
> On Jan 8, 2015, at 5:12 AM, sait k wrote: > > Dear Sir or Madam, > i want to use the var.test() (f.test()) for n samples. > But in R the var.test() can only used for variances of two samples. In the > intruductions stands: Performs an F test to compare the variances of two > samples from no

[R] i need help for var.test()

2015-01-08 Thread sait k
Dear Sir or Madam, i want to use the var.test() (f.test()) for n samples. But in R the var.test() can only used for variances of two samples. In the intruductions stands: Performs an F test to compare the variances of two samples from normal populations. I need a variance test for n samples. It