Displaying 20 results from an estimated 600 matches similar to: "calculate users age"
2005 Dec 18
13
calculate age based on DoB
Hi,
I wrote a little helper that calulates someone''s age based on his/her
date of birth.
def age(dob)
diff = Date.today - dob
age = (diff / 365.25).floor
age.to_s
end
It works fine, but it''s not completely accurate as it just takes the
average days in a year. It should be able to calculate this more
accurately, right? I can''t work it out
2007 Sep 21
1
calculate age of a person and compare it
how can i calculate the age of a person using database " birth date"
my teble is user and column is bday ....
now i want to calculate the age will some one please tell me how can i
calculate the age..
actually i want to compare my two database fields birthdate and
joining date ......that is why i need this....
will someone please tell me how can i do that
2010 Feb 23
1
Problem with strptime generating missing values where none appear to exist
Dear R Helpers,
I am having difficulty with strptime. I wish to find the differences between
two vectors of times. I have apparently no difficulty to convert the vectors
to the appropriate format using strptime. But, then difftime does not
calculate all the differences.
Here is the code and output:-
dob=strptime(as.character(datx$BDT),'%d-%b-%y'); dob$year=dob$year-100
2006 Jan 07
4
set date with date_select
when retreiving a date from a DATETIME field in a database, is there a
way to set the date to the value of the DB in the view? It seems to
always default to the current date...
if I have a field called birthdate in the users table and i do
@user = User.find(@params[:id])
in my view i have a <%= date_select ''birthdate'',''user'' %>
but dont know how to
2011 Nov 07
2
Problem working with dates
Hello All,
I've been reading books about R for awhile now and am in the process of replicating the SAS analyses from an old report. I want to be sure that I can do all the things I need to in R before using it in my daily work.
So far, I've managed to read in all my data and have done some data manipulation. I'm having trouble with fixing an error in a date variable though, and was
2006 Feb 19
1
script/console & script/runner
Hello,
Is it possible to call a method in a controller with script/console or
script/runner?
--
Jonas Elfstr?m
2006 Feb 20
1
extract month from date column
Hi,
I have this rails query:
@birthdays = Birthday.find :all,
:conditions => ["user_id = ? and
birthdate = ''2006-02-01'', @user_id],
:limit => @birthday_pages.items_per_page,
:offset => @birthday_pages.current.offset
You can ignore the user_id, limit and offset part.
2006 Jan 04
5
How do I set the default value for date fields?
I want my date fields to default to NIL or "", because the presence of a
date means something. My problem is that rails is defaulting the fields
to today''s date automatically when I create a new record through the
scaffold. I tried removing the default ''0000-00-00'' and changing NOT
NULL to NULL, but both columns get today''s date as the default
2009 Feb 20
3
mean over previous cells
Dear RUsers,
I guess this is an easy question for someone a little familiar with
programming...(which I am not)...
I've got 2 colummns, one shows just dates(SST_date, Class 'Date' num), the
other one shows the SeaSurfaceTemperature (SST, num) at that certain date.
SST_date SST
2008-01-01 22.2
2008-01-02 21.8
2008-01-03 22.8
2008-01-04 22.9
2008-01-05 23.1
2008-01-06 23.2
...
2006 Jan 19
2
date_select broken
I am using date_select and in some instances it only shows about 10
years worth of choices. Same form on other users shows the whole
range. date_select looks like this
<%= date_select ''user'',''birthdate'' , :start_year => 1940 %>
I would expect to always see 1940-2006 or so , but i dont always do.
Is there a way to force the range or explain why i
2008 Jan 12
2
Problems with date field
Hi, I''m creating a date type field to put birthdate, but the years on
this field only go to 2003, what should I do??
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2012 Jul 11
3
unable to subtract dates in R
Hi,
I wanted to calculate the age of people in my dataset by subtracting the
individual's date of birth from their intake into a program.
After several hours, searches of help archives, and the downloading of
lubiridate, I have had no luck with this.
Below is the code I used.
> intakeDS$DOB <- as.character(intakeDS$DOB)
> intakeDS$DOB <- as.Date(intakeDS$DOB,
2010 Dec 10
2
Remove 100 years from a date object
Hello,
I have some data that has dates in the form 27.02.37. I convert them to
a date object as follows:
as.Date(data$date,format="%d.%m.%y")
But this gives me years such as 2037 when I would like them to be 1937.
I thought of trying to take off some time i.e.
as.Date(camCD$DoB,format="%d.%m.%y") - 100*365
But that doesn't seem to work out correctly. Any ideas how to
2009 Jul 02
3
Testing for membership in an array of strings
As an R beginner, I feel brain dead today as I can not find the answer
to a relatively simple question.
Given a array of string values, for example lets say "mary", "bob",
"danny", "sue", and "jane".
I am trying to determine how to perform a logical test to determine if
a variable is an exact match for one of the string values in the array
2012 Nov 06
1
pivot table
Hello,
I have a data which looks like below: Some of the patients have multiple diagnosis.
ID(200 patients) Diag (100 unique Diag-200 in general) Proc (50 uniqe Proc) DOB (200) Gender (200)
a daig1
b diag2
c diag1
I want to reformat this data to :
ID diag1 diag 2 diag 3.. diagx proc1 proc2
2007 Nov 03
3
Birthdate validation
Hello everyone,
I''m almost cracking my head trying to do this birthdate validation. It
turns out that I can only accept users with at least 18 years old and
I''m trying to validate it writing this code on my user.rb fil at app/
models
class User < ActiveRecord::Base
validates_presence_of :full_name
validates_presence_of :street_address
validates_presence_of :city
2016 Jun 10
2
[RFC] LLVM Coroutines
On Fri, Jun 10, 2016 at 6:36 AM, Gor Nishanov <gornishanov at gmail.com> wrote:
> >> If you're going down that route, that still leaves the question of the
> >> semantics of the fork intrinsic... thinking about it a bit more, I think
> >> you're going to run into problems with trying to keep around a return
> block
> >> through optimizations:
2010 Aug 16
1
How can I read date format '02-Jan-02' ?
Hello,
I am trying to read a database exported from SAS.
It is form of csv, and the date format reads '02-Feb-99'.
I used following code to convert character to date format,
db$dob<-as.Date(db$dob, format="%d-%b-%y").
but it doesn't work, only seems NA.
What's wrong with this code?
Thank you in advance.
Best,
Dong-Hee Koh
[[alternative HTML version deleted]]
2012 Oct 08
2
converting DOB format to age
Hi,
I have a column of DOB in mm/dd/yyyy. I want to convert this format to age.
Thanks a lot.
Best,Farnoosh Sheikhi
[[alternative HTML version deleted]]
2008 Aug 06
3
Help in running Stata dataset in R
Dear All,
I installed R 2.7.0 and tried to call a dataset i had ealier own called
on R2.6.2 but i keep on getting an error:
use("maltreat.dta")
Error in fromchar(x) :
character string is not in a standard unambiguous format
Tried doing the same with R2.7.1 but i get the same error.
However if i call the same on R 2.6.2, there is no error:
use("maltreat.dta")
> des()