Displaying 3 results from an estimated 3 matches for "mean3".
Did you mean:
means
1999 Mar 07
1
ANOVA f-test
I have a rather basic question. How can I get R to generate a ANOVA table
and a f-value for a hypothesis test such as:
Data: group1 values: 5.2 4.5 6.0 6.1 6.7 5.8
group2 values: 6.5 8.0 6.1 7.5 5.9 5.6
...
H0: mean1 = mean2 = mean3 = mean4
HA: at least two means different
where I want to evaluate using a f test statistic?
F = MSTr/MSE
I'd like a table similar to one that Minitab would produce:
Df Sum Sq Mean Sq F value
mean1
mean2
mean3
Error
Secondly, how can do a second evaluation using a multiple ANOVA...
2017 Aug 24
1
Problem in optimization of Gaussian Mixture model
Hello,
I am facing a problem with optimization in R from 2-3 weeks.
I have some Gaussian mixtures parameters and I want to find the maximum in
that
*Parameters are in the form *
mean1 mean2 mean3 sigma1 sigma2 sigma3 c1 c2 c3
506.8644 672.8448 829.902 61.02859 9.149168 74.84682 0.1241933
0.6329082 0.2428986
I have used optima and optimx to find the maxima, but it gives me value
near by the highest mean as an output, for example 830 in the above
parameters. The co...
2018 Mar 25
3
Take average of previous weeks
Dear all,
I have weekly data by city (variable citycode). I would like to take the
average of the previous two, three, four weeks (without the current week)
of the variable called value.
This is what I have tried to compute the average of the two previous weeks;
df = df %>%
mutate(value.lag1 = lag(value, n = 1)) %>%
mutate(value .2.previous = rollapply(data = value.lag1,