[R] Circular statistics- range.circular

2012-03-26 Thread Benedikt Niesterok
Hi everyone, does anyone know, which test of uniformity is run under the command range.circular() in the circular statistics package? It didn't say anything in the description of this command. Your help would be appreciated a lot. Benedikt [[alternative HTML version deleted]] _

[R] correlation coefficient

2009-04-28 Thread Benedikt Niesterok
Hello, I would like to get a correlation coefficient (R-squared) for my model. I don't know how to calculate it in R. What I've done so far: x<-8.5:32.5 #Vektor x y<-c(NA ,5.88 , 6.95 , 7.2 , 7.66 , 8.02 , 8.44 , 9.06, 9.65, 10.22 , 10.63 ,11.06, 11.37, 11.91 ,12.28, 12.69 ,13.07 , 13.5 , 13.3

[R] Comparing two regression line slopes

2009-04-15 Thread Benedikt Niesterok
Hello R users, I've used the following help: > "Comparing two regression line slopes" > I knew the method based on the following statement : > t = (b1 - b2) / sb1,b2 > where b1 and b2 are the two slope coefficients and sb1,b2 the pooled > standard error of the slope (b) > > which can be calcula

[R] Null-Hypothesis

2009-04-08 Thread Benedikt Niesterok
Hello R users, I've used the following help two compare two regression line slopes. Wanted to test if they differ significantly: Hi, I've made a research about how to compare two regression line slopes (of y versus x for 2 groups, "group" being a factor ) using R. I knew the method based on th

[R] Comparing 2 slopes of 2 regression lines

2009-04-06 Thread Benedikt Niesterok
Hello everyone, I would like to test two regression slopes:do they differ significantly?The data and commands I've used so far: x<-8.5:32.5 #Vektor x y<-c( NA , NA , 5.67 , 6.53 , 6.83, 7.41 , 7.93 , 8.5 , 8.86, 9.46 , 9.82 , 10 ,10.35 , 10.7 ,11.03 ,11.37 ,11.61 ,11.84, 12.12, 12.39 ,1

[R] finding best fitting model

2009-04-02 Thread Benedikt Niesterok
Hello, Is there a function in r to find the best fitting model for a set of data? I would like to know if my data are related exponentially,linearly or if there is a logarithmic correlation between my x and y values. To get a better imagination I've added the graphics at the end of this mail as an

[R] discriminant analyse

2009-04-02 Thread Benedikt Niesterok
Hello everybody, I would like to carry out a discriminant analyse.I have two variables: eye diameter and body length. I have values for different areas and would like to separate those areas from each other according to the variables. Taking the raw data returns a cloud of points.The areas don't s

[R] Discriminant analyse

2009-04-01 Thread Benedikt Niesterok
Hi everyone, I intend to do a discriminant analyse for 2 measures(eye diameter and body length) and for different areas to show differences between those areas if there are any. The raw data (eye diameter, body length) make one cloud of points so it seems there aren't any differences between tho