similar to: getting the value from previous row

Displaying 20 results from an estimated 2000 matches similar to: "getting the value from previous row"

2006 Sep 22
1
url_for params
Hi, url_for has a nice way of using the current ''params'' object to fill in default parameters in a route. For example, map.connect '':controller/:action/:id/'' with <%= url_for :action => ''my_action'' %> will redirect to the current controller. All very good. However, I sometimes want a url_for() which includes current parameters
2011 Nov 30
3
how to call a function for each row
Hi I have a data-frame which look like this X1 X2 X3 1 3 5 2 4 6 3 6 1 I want to apply a formula Y=6*X1 + 7*X2 + 8*X3 for every row Thanks in Advance -- View this message in context: http://r.789695.n4.nabble.com/how-to-call-a-function-for-each-row-tp4122906p4122906.html Sent from the R help mailing list archive at Nabble.com.
2006 Mar 02
3
merge with symbol problem
Hi, It''s a little bit annoying to me, I can''t understand the following: If I merge a value to the params hash with: params => params.merge :value => new_value the params[:value] doesn''t change, but if I use string instead of a symbol like: params => params.merge "value" => new_value it works. Somebody plz tell me why... Abbath
2007 Jun 26
1
ActiveRecord: Attribute Setter for belongs_to relation attribute
Hi, I m trying to link into the process of setting an belongs_to attribute in my model. Unfortunetly, it does not seem to be as easy as for "normal" attributes. I ve tried the following: class Treatment < ActiveRecord::Base belongs_to :drug def drug=(new_value) ''my stuff super new_value end However, that does not work. Ive also tried self[:drug] =
2018 Apr 11
1
[PATCH] v2v: linux: correctly update resume=/dev/device entries (RHBZ#1532224)
When updating the device names to the new names, handle GRUB_CMDLINE entries (typically in grub2 configuration files) correctly: loop over the whole configuration value, and replace each occurrency of resume=/dev/device found. The actual code is moved away from replace_if_device, since this function now does only the actual replacement of the device string. --- v2v/convert_linux.ml | 38
2012 Feb 22
4
Week number from a date
Hi My data looks like this startDate="2008-06-01" dateRange =c( "2008-10-01","2008-12-01") Is there any method to find the week number from the startDate range ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/Week-number-from-a-date-tp4410223p4410223.html Sent from the R help mailing list archive at Nabble.com.
2009 Jan 09
1
Calculating p-values from your own distribution as an array
Hi - If I have a hypothetical distribution as an array distribution<-c(0,1,2,3,4,5,6,7,8,9) and I want to find the probability there is a value smaller than a new value. new_value<-4 (such that I'd get this type of output) new_value p-value 4 0.5 3.4 0.4 3 0.4 0 0.1 -1 0.0 Thanks for the help, I bet this is really easy... :/ Stephen -- The Wellcome Trust Sanger Institute is
2012 Nov 26
3
Help in splitting the records
Hi I have set of records seperated by a separator say "$$$" i want to get the values in a dataframe. eq qwer$$12$$qwre ewrtr$7789$ewwe I want the output as\ V1 V2 V3 qwer 12 qwre ewrtr 7789 ewwwe Please help me ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/Help-in-splitting-the-records-tp4650827.html Sent from
2008 Jul 23
3
Validation method vs. After Save & Rollback
Hey Guys, Again, I am just learning Rails, so I am asking advice here. I have a model called Company which has many Owners. The Owners model indicates the name of the owner and their share (as a percentage) of the company. The total shares for any one company can not be more than 100%. So if I have 10 owners each with 10% of the company and I update one of the owners and set their share to 11%,
2004 Jul 14
1
New dynamic window patch (with limits)
As before, it is described on our website. This should apply fairly cleanly to both portable and openbsd ssh. http://www.psc.edu/networking/hpn-ssh/ Only in openssh-3.8.1p1-dynwindow: Makefile diff -u openssh-3.8.1p1/buffer.c openssh-3.8.1p1-dynwindow/buffer.c --- openssh-3.8.1p1/buffer.c 2003-11-21 07:56:47.000000000 -0500 +++ openssh-3.8.1p1-dynwindow/buffer.c 2004-07-12 07:49:29.000000000
2011 Sep 19
2
Setting the Values
Hi I have a variable str = " X", "Y" and values ("0","12") i want to set value for X =0 and Y =12 and use inside the program. how to do this Please anybody help me. -- View this message in context: http://r.789695.n4.nabble.com/Setting-the-Values-tp3823388p3823388.html Sent from the R help mailing list archive at Nabble.com.
2012 Apr 03
2
Histogram classwise
Hi I have a data class wise. I want to create a histogram class wise without using for loop as it takes a long time my data looks like this x class 27 1 93 3 65 5 1 2 69 5 2 1 92 4 49 5 55 4 46 1 51 3 100 4 ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/Histogram-classwise-tp4528624p4528624.html Sent from the R help mailing list archive
2012 Jul 17
2
comparing three vectors
Hi I 've a data a=c(10,20,30) b=c(100,200,300) c=c(50,60,70) I want to compare a[1]<=c[1]<b[1],...... How to compare for all the records ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/comparing-three-vectors-tp4636728.html Sent from the R help mailing list archive at Nabble.com.
2012 Apr 24
2
searchina a pattern in a string
I have a long string. i want to sepearate a 10 digit phone no from it. eg "my no is 9876543210 is personal no and my official no is 123-456-8907. you can use any of these" i want to seperate the 9876543210 and 123-456-8907 from this. therev may be many phone nos in the string. how to do it ----- Thanks in Advance Arun -- View this message in context:
2012 Oct 24
3
Results not dispalying in R console
Hi I'm not getting any results in R console when i run commands. I reinstalled R but the results are same ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/Results-not-dispalying-in-R-console-tp4647271.html Sent from the R help mailing list archive at Nabble.com.
2012 Jan 09
6
runif with condition
Hi I want to generate 4 random number which sum up to 100 always Please help ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/runif-with-condition-tp4278704p4278704.html Sent from the R help mailing list archive at Nabble.com.
2011 Nov 16
3
changing date format in a dataframe
Hi I have a data frame and i need to change the date format in it. my dataframe X Date 1 1/1/2009 2 2/1/2009 3 3/1/2009 I need to change it to 2009-01-01 -- View this message in context: http://r.789695.n4.nabble.com/changing-date-format-in-a-dataframe-tp4076411p4076411.html Sent from the R help mailing list archive at Nabble.com.
2012 Feb 22
3
inserting a dataframe into the table
Hi, I have a dataset X Y A= 10 15 20 30 40 50 B = X Z 10 30 20 50 I have a table containing X Y Z columns How to insert a data frame into the table without using for loop ? now currently i'm using the for loop with using the insert command? ----- Thanks in Advance Arun -- View this message in
2012 Jul 03
2
read the date format
hi I have a data like thursday, November 20,2012. I'm not able to convert into data format in R Can anyone please help ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/read-the-date-format-tp4635245.html Sent from the R help mailing list archive at Nabble.com.
2012 Aug 03
1
how to get a date variable from a dataset
Hi I have a find the class of each variable of the data set which is given as input. I can able to find the string and the numeric variable. Not able to find if the variable is date or not Can any one help me. ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/how-to-get-a-date-variable-from-a-dataset-tp4639038.html Sent from the R help