Displaying 7 results from an estimated 7 matches similar to: "names of data.frame variables?"
2008 Mar 08
1
ks.test troubles
Hi there!
I have two little different data. One is a computer test on people, the
other is a paper and pencil test. two boxplots show me that the data is
almost the same.
So now I'd like to know if I could handle all data as one, by testing
with ks.test:
====
> ks.test(el$angststoer, fl$angststoer)
Two-sample Kolmogorov-Smirnov test
data: el$angststoer and fl$angststoer
D =
2008 Mar 10
3
format a number
Hi there!
I have i.e. v = c(0.43554, -0.22343), and so on. Now I'd like to make a
format like
format(v, digits=2) but without the leading 0, so 0.43554 becomes .44,
-0.22343 becomes -.22
How can I do that?
runnable example for copy and paste:
v = c(0.43554, -0.22343)
format(v, digits=2)
Thanks,
Martin
--
Ihr Partner f?r Webdesign, Webapplikationen und Webspace.
2008 Mar 05
2
Correlation matrix one side with significance
Hi there!
In my case,
cor(d[1:20])
makes me a good correlation matrix.
Now I'd like to have it one sided, means only the left bottom side to be
printed (the others are the same) and I'd like to have * where the
p-value is lower than 0.05 and ** lower than 0.01.
How can I do this?
And another thing: Is there a way to output that table as a latex table?
Thanks,
Martin
--
Ihr
2008 Mar 04
4
R-Terminal
Hi there!
I use an gnome-terminal for using R. When I resize the termial to the
maximum size, R uses only the left side of the window. Can I tell R to
use the whole window somehow?
Thanks,
Martin
--
Ihr Partner f?r Webdesign, Webapplikationen und Webspace.
http://www.roomandspace.com/
Martin Kaffanke +43 650 4514224
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2008 Mar 06
3
mean and sd with number of values?
Hi there,
When i do
mean(fl[1:20], na.rm=T)
sd(fl[1:20], na.rm=T)
I get 20 Results, but now I'd like to know from how many numbers my mean
and sd are calculated.
How to I use the length() for this, or is this possible?
Because there are missing values in some, but not in all columns. So
there should be a different count of numbers.
Thanks,
Martin
--
Ihr Partner f?r Webdesign,
2008 Mar 13
1
Compare two correlations matrices
Hi there,
When I make two correlations matrices of the same size from
a <- cor(el[1:20])
b <- cor(fl[1:20])
how can I compare if this matrices are equal?
Thanks,
Martin
--
Ihr Partner f?r Webdesign, Webapplikationen und Webspace.
http://www.roomandspace.com/
Martin Kaffanke +43 650 4514224
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2008 Mar 13
1
factanal and plotting?
Hi there!
To make a good choice for the estimation of the number of usefull
factors. And I'd like to plot a graph like:
http://de.wikipedia.org/wiki/Bild:Parallelanalyse.jpg
where I don't need the green line (random values).
But with
str(factanal(data, factors=10)) I cannot figure out where I can find the
values for plotting.
Can you please help me in this question?
Thanks,
Martin