Wow. That was fast. And it works. Thank you!
Laetitia
Am 29.08.2010 um 00:35 schrieb Jorge Ivan Velez:
> index <- apply(d, 2, function(x) length(table(x)) > 1)
> d[, index]
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Hi,
Can anybody show me how to extract all columns in my dataset that are
polymorphic? Or phrased in another way I would like to delete all
columns that have no more than one letter in it (that are monomorphic).
Thank you.
Laetitia
"V1" "V2" "V3" "V4" "V5" "V6" "V7" "V8" "V9" "V10" "V11" "
Hi Richard,
thank you very much. I got the results I needed. But I am still
interested to find out how it would work with a if-else function in
this context.
Best,
Laetitia
Am 20.08.2010 um 23:40 schrieb RICHARD M. HEIBERGER:
> tmp <- "VariablePARPlot1Plot2
Hi R people!
I am looking for some suggestions writing an if-else function.
The idea is to characterize different plots containing counts of
variables (here parasites). If a plot has a count equal or higher than
4 for any parasite the function should return a 1 else a 0. Later I
can loop the
Dear Wu Gong and Peter Ehlers,
thank you very much for your help debugging my script.
Now I have a general following up question:
Is there a straightforward way to rearrange the following dataset so
that all first letters of each column will be combined in one column,
all the second letters i
Hi,
I am sampling two random columns from females and two random columns
from males to produce tetraploid offspring. For every female I am
sampling a random male.
In the end I want to write out a a matrix with all the offspring, but
that does not work. I get always only the offspring from th
Hi,
I've had a little problem for several weeks now. It is annoying and
therefore I will ask for help:
When I write a script with several iterations, I make it write out a
text file to save the data during the run. For example I write:
if (i %% 25) write.table(output,"temporary_output.txt")
L
Hi,
I've had a little problem for several weeks now. It is annoying and
therefore I will ask for help now:
When I write a script with several iterations, I make it write out a
text file to save the data during the run. For example I write:
if (i %% 25) write.table(output,"temporary_output.txt
Hi!
I need some help to finish my script.
I have two tables that I combine randomly to produce a third table.
This I do for hundreds of iterations. In the output file I get all the
simulated tables after each other. It looks like this (in this case 3
iterations):
output file:
[[1]]
x)
gets to invalid values.
Try this:
for (x in 1:(nrow(dat)/2)) {
a <- dat[(2*x-1),2] # odd rows
b <- dat[(2*x),2]# even rows
print(lettermatch(a,b))
}
You don't need the as.character() if you have character data.
Always do a str(dat)
Dear Peter,
thank you for the suggestion.
Unfortunately the star did not help. Did it work for you? For me it seems
incomplete somehow.
Laetitia
From: Peter Ehlers [ehl...@ucalgary.ca]
Sent: Tuesday, January 12, 2010 09:54 AM
To: Laetitia Schmid
Cc: Steve
AA
C11 AGGGAAACCGGGGGTT
M11 AATTCCGGCCTT
Am 11.01.2010 um 15:18 schrieb Steve Lianoglou:
Hi,
On Mon, Jan 11, 2010 at 8:41 AM, Laetitia Schmid
wrote:
Hello World,
I have a function that makes pairwise comparisons between two
strings. I woul
Hello World,
I have a function that makes pairwise comparisons between two strings. I would
like to apply this function to my data (which consists of columns with
different strings) in the way that it compares the first with the second entry,
and then the third with the fourth, and then the fift
Hi!
Does anybody know a string function that would calculate how many
characters two strings share? I.e. ("Hello World","Hello Peter") would
be 7.
Thanks.
Laetitia
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