Displaying 6 results from an estimated 6 matches for "carmei3".
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carme
2006 Nov 29
4
String question
Hi to all
I would to determinate whether bits is a binary code and I would to find
out the which bit is set to 1
bits <-"00110110"
I found to detect whether there are only numbers
all.digits(bits)
but is there any function to detect whether there are only 0 and 1 in
the string
And how could I get the f.e the third "bit" from the right hand side
With regards Carmen
2006 Nov 08
10
axis command and excel time format
Hi to all,
I have some problems to get the times-scale to the x-axis the times are
coming from an excel sheet f. e
[1] "0:01:00" "0:02:00" "0:03:00" "0:04:00" "0:05:00" "0:06:00" "0:07:00"
[8] "0:08:00" "0:09:00" "0:10:00" "0:11:00" "0:12:00" "0:13:00"
2006 Nov 30
3
writing function with ,... )
Hi to all
I did not found the right hints for functions with the dot-dot-dot argument.
Is it possible to write own functions with the tree dots and if yes
what's wrong with the following example?
test <- function(x, ...)
{
print (x)
if (exists("y"))print(y)
if (exists("z"))print(z)
}
test(4,y=2)
With regards Carmen
2006 Dec 15
2
ks.test "greater" and "less"
Hello r-group
I have a question to the ks.test.
I would expect different values for less and greater between data1 and
data2.
Does anybody could explain my point of misunderstanding the function?
data1<-c(8,12,43,70)
data2<- c(70,43,12,8)
ks.test(data1,"pnorm")
ks.test(data1,"pnorm",alternative ="less") #expected < 0.001
2007 Jun 08
2
pnorm how to decide lower-tail true or false
Hi to all,
maybe the last question was not clear enough.
I did not found any hints how to decide whether it should use lower.tail
or not.
As it is an extra R-feature ( written in
http://finzi.psych.upenn.edu/R/Rhelp02a/archive/66250.html )
I do not find anything about it in any statistical books of me.
Regards Carmen
2007 Jun 06
6
p-value from GEE
Hi to all,
I found in the R-help archive how to calculate the p-value for a gee result:
http://finzi.psych.upenn.edu/R/Rhelp02a/archive/74150.html
but there are two questions (I am afraid they are basic questions ...)
1. why is the result multiplicated with 2
2. how could I decide between lower.tail =TRUE and FALSE:
example: