Displaying 7 results from an estimated 7 matches similar to: "extract number from a mixture of character and number"
2005 Oct 26
1
pb with dyn.load - fortran code now attached
Hi,
here are a couple of strange things happening with R.2.2.0 compiled
under Mandrake-10.1
At the begining of the story I have segmentation fault
using package RandomFields in conjuction with some Fortran code of mine
loaded with dyn.load.
One of my fortran programs contains a subroutine named fstat
Trying to trace , I simplified the sequence as much as possible
and I end up with the the
2012 Nov 21
4
help with if statement
Hi all,
I had a dataset A like:
TIME DV
0 0
1 10
5 20
24 30
36 80
48 60
72 15
I would like to add 24 to those values higher than 24 in the TIME column.
I did the following:
If (A$TIME>=24) {
A$TIME <- A$TIME+24}
It did not work. How should I do it?
Thanks,
--
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2012 Jun 20
3
data normalization
I have a dataframe such like the following:
ID TIME DV
1 0 0.880146038
1 1 0.88669051
1 3 0.610784702
1 5 0.756046666
2 0 0.456263368
2 1 0.369991537
2 3 0.508798346
2 5 0.441037014
3 0 0.854905349
3 1 0.960457553
3 3 0.609434409
3 5 0.655006334
. . .
. . .
I would like to generate another column with the normalized values of DV.
for each ID, normalize to the value at TIME 0.
I was able to
2012 Oct 18
3
replacing random repeated numbers with a series of sequenced numbers
Hi all,
I have a dataset with one column like below:
ID
1001
1001
1001
1122
1122
1122
1421
1421
1789
1789
..
These numbers are no in sequence and they have different repeats. How could
replace them with sequenced numbers?
Such as follows replacing the ID column with the SID column.
ID SID
1001 1001
1001 1001
1001 1001
1122 1002
1122 1002
1122 1002
1421 1003
1421 1003
1789 1004
1789 1004
2012 Jun 20
2
can not read a table
I have a table like the following:
TABLE NO. 1
ID TIME
1325 0
1325 0
. .
. .
. .
TABLE NO. 1
ID TIME
1325 0
1325 0
. .
. .
. .
TABLE NO. 1
ID TIME
1325 0
1325 0
. .
. .
. .
TABLE NO. 1
ID TIME
1325 0
1325 0
. .
. .
. .
I used the following code:
sim <- read.table("sim.tab", skip=1, as.is=T,header=T)
it did not work, as there're rows with characters in between the data.
2005 Oct 26
0
pb with dyn.load
Hi,
here are a couple of strange things happening with R.2.2.0 compiled
under Mandrake-10.1
At the begining of the story I have segmentation fault
using package RandomFields in conjuction with some Fortran code of mine
loaded with dyn.load.
One of my fortran programs contains a subroutine named fstat
Trying to trace , I simplified the sequence as much as possible
and I end up with the the
2008 Mar 05
0
Index Searcher Causes GC Memory Error: "irb: double free or corruption"
My linux Ruby application is using Ferret 0.11.4. I created my own class IndexSearcher to contain
the Searcher of multiple directories. If I do not have the searcher.close called, the end of
runner/console or runner/server will pop out with system error:
*** glibc detected *** irb: double free or corruption (fasttop): 0x0a51d6c0 ***
======= Backtrace: =========
/lib/libc.so.6[0x638ac1]