Displaying 9 results from an estimated 9 matches for "cathelf".
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2007 Sep 19
2
how to find "p" in binomial(n,p)
I think the function you need is 'help.search'; try:
help.search("binomial")
and look for something obvious in the 'stats' package. A good deal quicker
and easier than posting to an internet forum!
Cheers, Mike.
cathelf wrote:
>
> Dear all,
>
> I am trying a find the value "p" in binomial.
>
> X ~ Bin(n,p)
>
> I want to find the value "p", so that Pr(X <= k) <= alpha
>
> Here, n, k and alpha are known. n, k are integers. alpha is between (0,1).
>
&g...
2007 Nov 29
1
Question about using “par”
Hi,
Sorry for bothering your guys again. I am trying to use "par" to put 6
figures into 3 rows and 2 columns. My code is:
op <- par(mfrow = c(1, 2))
xyplot(x1+x2+x3 ~ y, data=resulta, type="l", pch=LETTERS[1:3], lty=c(1:3),
main="For k=3, theata1=1")
xyplot(x1+x2+x3 ~ y, data=resultb, type="l", pch=LETTERS[1:3], lty=c(1:3),
main="For k=3,
2008 Sep 12
2
Again, about boxplot
Thank you for your guys reply for my previous question. But I got one more
question about the boxplot. With the code in the R-help:
boxplot(len ~ dose, data = ToothGrowth,
boxwex = 0.25, at = 1:3 - 0.2,
subset = supp == "VC", col = "yellow",
main = "Guinea Pigs' Tooth Growth",
xlab = "Vitamin C dose mg",
ylab =
2008 Sep 11
4
About "Plot.new"
Hi, sorry for bothering your guys.
I will trying to make some nice graph using boxplot. when I check the help
file of boxplot, there is a sample code as:
boxplot(len ~ dose, data = ToothGrowth, add = TRUE,
boxwex = 0.25, at = 1:3 + 0.2,
subset = supp == "OJ", col = "orange")
legend(2, 9, c("Ascorbic acid", "Orange juice"),
2008 Sep 18
1
about the whisker in boxplot
Hi, Dear R-users,
I have a problem when I drawing a boxplot. I want to extend the whisker to
the 5% and the 95% quantiles and only show the most extreme outlier, like
0.01% and 99.99% percentiles. What should I do?
I saw something on boxplot.stat, but even I define the parameter in
boxplot.stat, what I should do next? how to connect it to boxplot?
Thank you very much!
Catherine
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2008 Sep 18
1
outlier and whisker in boxplot
Hi, Dear R-users:
Sorry for bothering your guys again. I think I should rewrite my question.
I know how to extend whisker by using range. The question is that I will set
the range=1.5, and at the same time, I only want to show the extreme
outlier, like 0.01% and 99.99% percentile, so what should I do?
Thank you very much!
Catherine
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2008 Jul 22
1
help with simulate AR(1) data
Hi, sorry for bothering your guys again.
I want to simulate 100 AR(1) data with cor(x_t, x_t-1)=rho=0.3. The mean of
the first 70 data (x_1 to x_70) is 0 and the mean of the last 30 data (x_71
to x_100) is 2. Can I do it in the following way?
x <- arima.sim(list=(ar=0.3), 100)
mean <- c(rep(0, 70), rep(2, 30))
xnew <- x+mean
If the above code to simulate 100 AR(1) data is right, what
2007 Sep 20
1
Time series graphs, question about using zoo
Hi,
Can you tell me what is the meaning for "tail, 1" in "aggregate"?
I also want to get some similar graph, but the data is not time series data.
Suppose here is my data one, I want a graph with x-axis is just the
index(1:9).
The graph plot all the variable A, B,C,D. So there should be 4 lines for
each graph. For the A line, at each time point, the letter A should be on
2008 Sep 17
0
how to extend the whisker in boxplot?
Hi, Sorry for bothering your guys. I am still working on boxplot.
How can I extend the whisker to the 5% and the 95% quantiles? What I should
do if I only want to show the most extreme outlier, like 0.01% and 99.99%
percentiles?
I saw something on boxplot.stat, but I even donot know how to connect it to
boxplot?
Thank you very much!
suppose the follow is the data to make the boxplot.
a <-