Displaying 20 results from an estimated 10000 matches similar to: "From (common IDs different Names) To (common IDs common Names)"
2013 Apr 13
2
Comparison of Date format
Hi,
?In the example you provided, it looks like the dates in Date2 happens first.? So, I changed it a bit.?
DataA<- read.table(text="
ID,Status,Date1,Date2 ??? ??? ??????
1,A,3-Feb-01,15-May-01 ??? ???
1,B,15-May-01,16-May-01 ??? ???
1,A,16-May-01,3-Sep-01 ??? ??? ??? ??? ???
1,B,3-Sep-01,13-Sep-01 ??? ??? ??? ??? ???
1,C,13-Sep-01,26-Feb-04 ??? ??? ??? ??? ???
2012 Jan 13
2
Remove space from string
Dear R users,
I have some trivial query.
I have a string, I want to remove space from the string.
For eg.
Input:
a <- " Remove space "
Output required:
"Removespace"
I tried using str_trim but only removes end spaces. library(stringr).
Regards
Vikram
[[alternative HTML version deleted]]
2013 Jun 10
4
Combining CSV data
Hello R community,
I am trying to combine two CSV files that look like this:
File A
Row_ID_CR, Data1, Data2, Data3
1, aa, bb, cc
2, dd, ee, ff
File B
Row_ID_N, Src_Row_ID, DataN1
1a, 1, This is comment 1
2a, 1, This is comment 2
3a,
2012 Mar 07
2
Remove a word from a character vector value XXXX
Hi everyone,
What is the easiest way to remove the word Average and strip leading
and trailing blanks from the character vector (d5.Region) below?
.nrow.d5. d5.Region
1 1 Central Average
2 2 Coastal Average
3 3 East Average
4 4 Metro East Average
5 5 Metro North Average
6 6 Metro South Average
7
2013 Jan 17
1
importing a SAS syntax-files (value labels)
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Name: nicht verf?gbar
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2017 Dec 05
2
FW: R-devel error
I am resubmitting this bug report but with additional information. I am running this with windows 10: w64-mingw32 with R Under development (unstable) (2017-12-04 r73829). I build 'httk' from the command prompt using 'R CMD build httk' after installing the required packages. Then when the vignettes are being created, it crashes. Today I installed the latest versions of Rtools,
2017 Dec 06
2
FW: R-devel error
Interesting, yesterday I had exactly this problem, but today I solved it
(see the R-pkg-devel list) by _installing_ R-devel and
> update.packages(checkBuilt = TRUE)
I also tried it on Martin's Fedora 26 example below. Worked fine (had to
install some packages...)
On ubuntu 16.04.
G?ran Brostr?m
On 2017-12-06 11:29, Martin Maechler wrote:
>>>>>> Pearce, Robert
2006 Jun 03
1
Can I tell if the associated record is new in a belongs_to save?
In a belongs_to association, is there a way to tell if the associated object
was newly created?
Hopefully this will explain my question:
A Firm class declares
has_many<http://api.rubyonrails.com/classes/ActiveRecord/Associations/ClassMethods.html#M000530>:clients
and a
client class declares
2009 May 04
4
Creating a variable which is the sum of equal rows in a dataframe
Hi everyone:
I need to count the number of banks of each firm in my
data. The firm is identified by the fiscal number. The
banks of each firm appears like this:
Firm Banks
500600700 Citybank
500600700 CGD
500600700 BES
500600800 Citybank
500600800 Bank1
500600900 CGD
I want to obtain the following dataframe:
Firm
2005 Sep 05
4
Dummy variables model
Hi, all!
Anyone know an easy way to specify the following model.
Panel dataset, with stock through time, by firm.
I want to run a model of y on a bunch of explanatory variables, and one
dummy for each firm, which is 1 for observations that come from firm i,
and 0 everywhere else. I have over 200 firms (and a factor variable that
contains a firm identifier).
Any easy way of going about
2011 May 19
2
balanced panel data
I have a dataframe with many firm-year observations and many variables.
Not all firms have information for all the years.
I want another dataframe with only those firms that have information all
years.
This is, I want a balanced panel data, but with the maximum number of years.
In my reprocucible example I want to keep firms 1,2 and 3 (period 2000 to
2004).
I need your help to create a
2013 Oct 15
1
Problem with lapply
Hi together
I'm pretty new to R, so excuse me if it is a basic question.
I have a big dataset (extract of it found in the attachment) of returns from
firms. I'd like to compute the Pearson correlation of each firm with the
"Market" and the corresponding p-Value. So I thought of making a list of
'cor.test's and then extract the needed values with a for loop. What I did
so
2009 May 10
1
Select the rows in a dataframe that matches a criteria in another dataframe
Hi everyone! Thank you for the help you have been given to
me, and here I'm with another problem with my dataframes:
I have two dataframes (with much more observations), like
these:
Dataframe1
Firm Year cash
500400200 2007 100
500400200 2006 200
500400200 2005 400
500400300 2007 300
500400300 2006 240
500400300 2005 120
500400400
2011 Oct 02
2
subset in dataframes
I need help in subseting a dataframe:
data1<-data.frame(year=c(2001,2002,2003,2004,2001,2002,2003,2004,
2001,2002,2003,2004,2001,2002,2003,2004),
firm=c(1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4),x=c(11,22,-32,25,-26,47,85,98,
101,14,87,56,12,43,67,54),
y=c(110,220,302,250,260,470,850,980,1010,140,870,560,120,430,670,540))
data1
I want to keep the firms where all x>0 (where there are
2008 Jun 05
7
Improving data processing efficiency
Hi everyone!
I have a question about data processing efficiency.
My data are as follows: I have a data set on quarterly institutional
ownership of equities; some of them have had recent IPOs, some have not
(I have a binary flag set). The total dataset size is 700k+ rows.
My goal is this: For every quarter since issue for each IPO, I need to
find a "matched" firm in the same
2013 Apr 03
1
linear model coefficients by year and industry, fitted values, residuals, panel data
Hi R-helpers,
My real data is a panel (unbalanced and with gaps in years) of thousands of firms, by year and industry, and with financial information (variables X, Y, Z, for example), the number of firms by year and industry is not always equal, the number of years by industry is not always equal.
#reproducible example
firm1<-sort(rep(1:10,5),decreasing=F)
year1<-rep(2000:2004,10)
2005 Dec 29
9
Single Table Inheritance
Hi all,
Quick question for STI. With the following setup:
class Company < AR::Base; end
class Firm < Company; end
Why does Firm.find(:all) return all Companies, not just those that have
type==''Firm''?
--
Alex
2013 Apr 08
2
How can I extract part of the data in a panel dataset?
Taking the Grunfeld data, which is built-in in R, for example,
(1)How can I construct a dataset (or dataframe) that consists of the data
of all firms in 1951?
(2)How can I calculate the average capital in each form over the period
1951-1954?
What I can imagine is to categorize the data by firm, and then select the
data between 1951 and 1954 for each firm, but how can I do it?
Thanks,
Miao
2005 Oct 19
1
TZInfo::Timezone problem selected value
hey, i have a record in the database gtm_zone with value ''Europe/London''
i want to have a select box with all the zones and the corrected selected
@firm.gmt_zone = Europe/London
TimeZone from ruby (trying to expand with TZinfo)
dont want to select Europe/London, and not sorted
<select id="firm_gmt_zone" name="firm[gmt_zone]">
<%=
2006 Aug 30
1
Installation of SrcStatConnectorSrv on Windows
I am trying to install SrcStatConnectorSrv(2) and rcom from local zip
files.
I have successfully downloaded both files (from CRAN for rcom CRAN Other
for SrcStatConnectorSrv) and installed rcom. However, I get the following
error message when I try to install SrcStatConnectorSrv (the version dated
21-Aug-2006:
> utils:::menuInstallLocal()
Error in gzfile(file, "r") : unable to open