Displaying 20 results from an estimated 1000 matches similar to: "how to change the date into an interval of date?"
2013 May 07
4
how to calculate the mean in a period of time?
Hi,
Your question is still not clear.
May be this helps:
dat2<- read.table(text="
patient_id????? t???????? scores
1????????????????????? 0??????????????? 1.6
1????????????????????? 1??????????????? 2.6
1????????????????????? 2???????????????? 2.2
1????????????????????? 3???????????????? 1.8
2????????????????????? 0????????????????? 2.3
2?????????????????????? 2???????????????? 2.5
2013 Jun 04
0
choose the lines2
HI,
You can do this:
dat1<- read.csv("dat7.csv",header=TRUE,stringsAsFactors=FALSE,sep="\t")
dat.bru<- dat1[!is.na(dat1$evnmt_brutal),]
fun2<- function(dat){?
????? lst1<- split(dat,dat$patient_id)
??? lst2<- lapply(lst1,function(x) x[cumsum(x$evnmt_brutal==0)>0,])
??? lst3<- lapply(lst2,function(x) x[!(all(x$evnmt_brutal==1)|all(x$evnmt_brutal==0)),])
2013 Jun 04
0
choose the lines2
Hi,
May be this helps:
dat1<- read.csv("dat7.csv",header=TRUE,stringsAsFactors=FALSE,sep="\t")
dat.bru<- dat1[!is.na(dat1$evnmt_brutal),]
fun2<- function(dat){??
????? lst1<- split(dat,dat$patient_id)
??? lst2<- lapply(lst1,function(x) x[cumsum(x$evnmt_brutal==0)>0,])
??? lst3<- lapply(lst2,function(x) x[!(all(x$evnmt_brutal==1)|all(x$evnmt_brutal==0)),])
2013 May 27
0
choose the lines
Hi,
Try this:
dat1<- read.csv("dat7.csv",header=TRUE,stringsAsFactors=FALSE,sep="\t")
dat.bru<- dat1[!is.na(dat1$evnmt_brutal),]
fun1<- function(dat){???
? ??? lst1<- split(dat,dat$patient_id)
??? lst2<- lapply(lst1,function(x) x[cumsum(x$evnmt_brutal==0)>0,])
??? lst3<- lapply(lst2,function(x) x[!(all(x$evnmt_brutal==1)|all(x$evnmt_brutal==0)),])
???
2013 Apr 29
1
how to add new rows in a dataframe?
Hi,
dat1<- read.table(text="
id??????????????? t???????????????????? scores
2???????????????? 0??????????????????????? 1.2
2???????????????? 2???????????????????????? 2.3
2???????????????? 3??????????????????????? 3.6
2???????????????? 4??????????????????????? 5.6
2???????????????? 6??????????????????????? 7.8
3???????????????? 0??????????????????????? 1.6
3????????????????
2013 May 22
0
calcul of the mean in a period of time
Hi,
I guess you meant this:
dat2<- read.table(text="
patient_id????? t???????? scores
1????????????????????? 0??????????????? 1.6
1????????????????????? 1??????????????? 2.6
1????????????????????? 2???????????????? 2.2
1????????????????????? 3???????????????? 1.8
2????????????????????? 0????????????????? 2.3
2?????????????????????? 2???????????????? 2.5
2?????????????????????
2010 Jul 10
7
Need help on date calculation
Hi all, please see my code:
> library(zoo)
> a <- as.yearmon("March-2010", "%B-%Y")
> b <- as.yearmon("May-2010", "%B-%Y")
>
> nn <- (b-a)*12 # number of months in between them
> nn
[1] 2
> as.integer(nn)
[1] 1
What is the correct way to find the number of months between "a" and "b",
still
2010 Sep 07
2
Plotting longitudinal data
Hello,
Hope that someone could help me plotting longitudinal data below:
7213 3333330001 0.8300 13.05.09 1
1 3333330001 0.8700 09.02.05 NULL
4797 3333330001 0.7700 21.03.07 NULL
2399 3333330001 0.7800 12.04.06 NULL
2400 3333330002 NULL 27.03.06 NULL
7230 3333330002 0.8200 14.05.09 0
2 3333330002 0.8400 09.02.05 NULL
4798 3333330002 0.8700 20.03.07 0
4799 3333330003 0.9000 20.03.07 13
2401
2010 Jun 29
3
merging/intersecting 2 data frames
Dear R People:
I have two data frames, a.df and b.df as seen here:
> a.df[1:10,]
DATE GENDER PATIENT_ID AGE SYNDROME
1 4/16/2009 F 23686 45 RASH ON BODY
2 4/16/2009 F 13840 35 CANT URINATE
3 4/16/2009 M 12895 30 BLURRED VISION
4 4/16/2009 M 18375 33 UNABLE TO VOID
5 4/16/2009 M 2237 44
2013 Mar 09
4
Calculation with date
Hello again,
Let say I have an non-negative integer vector (which may be random):
Vec <- c(0, 13, 10, 4)
And I have a date:
> Date <- as.Date(Sys.time())
> Date
[1] "2013-03-09"
Using these 2 information, I want to get following date-vector:
New_Vec <- c("2013-03-01", "2014-04-01", "2014-01-01", "2013-07-01")
Basically the
2007 Feb 20
1
Reshape (pivot) question
Hi R-users,
I have a data set like this (first ten rows):
id patient_id date code class eala ID1564262 1562 6.4.2006 12:00 5555 1
NA ID1564262 1562 6.4.2006 12:00 5555 1 NA ID1564264 1365 14.2.2006 14:35
5555 1 50 ID1564265 1342 7.4.2006 14:30 2222 2 50 ID1564266 1648 7.4.200614:30
2222 2 50 ID1564267 1263 10.2.2006 15:45 2222 2 10 ID1564267 1263
10.2.200615:45
3333 3 10 ID1564269 5646
2010 Nov 02
2
multi-level cox ph with time-dependent covariates
Dear all,
I would like to know if it is possible to fit in R a Cox ph model with
time-dependent covariates and to account for hierarchical effects at
the same time. Additionally, I'd like also to know if it would be
possible to perform any feature selection on this model fit.
I have a data set that is composed by multiple marker measurements
(and hundreds of covariates) at different time
2006 Aug 17
1
How to sort child table on fields in the associated parent
For an Xray file system patients have folders and folders have studies.
That is:
patients folders studies
id id id
name patient_id folder_id
... label type
... ...
The list of studies with their associated folder and patient might look
like this:
name folder_label study_type
2007 Jun 26
1
A really simple data manipulation example
In response to those who asked for a better explanation of what the
Vilno software does, here's a simple example that gives some idea of
what it does.
LABRESULTS is a dataset with multiple rows per patient , with lab
sodium measurements. It has columns: PATIENT_ID, VISIT_NUM, and
SODIUM.
DEMO is a dataset with one row per patient, with demographic data.
It has columns: PATIENT_ID, GENDER.
2010 Jan 21
2
will_paginate ?
Does anyone have experience with will_paginate?
I''m trying to use it with acts_as_ferret.
routes.rb
...
map.search ''/search'', :controller => ''notes'', :action => ''search''
notes.rb
...
acts_as_ferret :fields => [ ''body'' ]
notes_controller.rb
...
def search
if params[ :query ]
@query = params[
2007 Sep 13
2
beginner's questions ... sorry
I have 316 files. Each file represents a patient's breathing track
(respiratory signal recorded for a variable number of cycles). All files
have the same are made up of a header followed by a variable number of
records.
Each record contains 7 comma separated fields.
The patient ID is recorder in the header which is stripped off when reading
the file into a R data.frame.
Since I need to keep
2006 Jul 13
5
how to get to the parent of a child object.
Hi, i have a problem with the following:
I have an application with patients <-->>consults
models are ok
in the view list_consults i do this:
for consult in @consults%>
<tr>
<td><%= consult.patient.name %></td>
<td><%= consult.reason %></td>
<td><%= consult.date %></td>
<td><%= link_to
2010 Mar 22
6
[LLVMdev] Summer of Code ideas
Hi,
I intend to participate in Google's Summer of Code this year, so I'd
like to bounce another idea around to see what you guys think. (I posted
a similar message to cfe-dev just now.) Be warned: this will shock you.
It may even horrify you.
1. Implement a 16-bit x86 backend. (*Chris recoils in horror*) Yeah, I
know 16-bit x86 is dead, but I find it interesting for historical
purposes
2013 Jun 28
3
[LLVMdev] Hi, people, I propose to move Debug and Object File related headers out of Support
For example,
ELF.h MachO.h and COFF.h
should moved into Object directory with new name.
and Dwarf.h should moved into DebugInfo directory.
2013/6/29 Eric Christopher <echristo at gmail.com>:
> Where would you like to move them?
>
> -eric
>
> On Fri, Jun 28, 2013 at 10:38 AM, 罗勇刚(Yonggang Luo)
> <luoyonggang at gmail.com> wrote:
>> From my point of view, the
2013 Jun 28
3
[LLVMdev] Hi, people, I propose to move Debug and Object File related headers out of Support
>From my point of view, the Support library should be more pure. And
should not contains
too much LLVM-related APIs and defines,
--
此致
礼
罗勇刚
Yours
sincerely,
Yonggang Luo