Re: [R] Assignment problems

Thanks again! I would like to construct 14 new 'year' dummy variables. I have 14 years: 1992:2006 with 231 observations pr. year. The year dummies should assign a 1 if the observation is within the specific year and 0 otherwise. So for example: 1992dummyvariable=1 if year=0 and so on. P --

Re: [R] Assignment problems

Thank you David! That was EXACTLY what I needed. I have one last question: I want to create a mix of EMU and nonEMU country pairs. I have tried with: EMUmix1-Reduce(``, lapply(countries,function(x,y){country1 %in% euro country2 %in% noneuro})) # Where euro are the EMU countries and

[R] OLS Estimating

Hi I am looking for a efficient way to estimate all parameters in your data.frame set using a specific function: for example ln(T)=b_0 + b_1*ln(Y_i*Y_j) + b_2*ln()+ ... + etc. Thanks, Ph -- View this message in context: http://r.789695.n4.nabble.com/OLS-Estimating-tp4580055p4580055.html Sent

Re: [R] Assignment problems

Hi RUI Thank you so much ! I know I have a lot to learn : / sorry for that. If I want to make a new data.frame where it is the NONEURO avgflows. how do I do that ? Ph -- View this message in context: http://r.789695.n4.nabble.com/Assignment-problems-tp4578672p4581164.html Sent from the R

Re: [R] Assignment problems

Thank you! Do you know why ifelse() sometimes returns NULL ? -- View this message in context: http://r.789695.n4.nabble.com/Assignment-problems-tp4578672p4581491.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org

Re: [R] Assignment problems

Hi EMU1993-(for (i in 1:nrow(data)){ + ifelse(year==1992,sum(avgflowEMU),0) + }) EMU1993 NULL -- View this message in context: http://r.789695.n4.nabble.com/Assignment-problems-tp4578672p4581590.html Sent from the R help mailing list archive at Nabble.com.

[R] Assignment problems

The text below is a part of, some work I have to do, which is due in 2 days and I am strung up with a lot of other stuff, so I was hoping someone would take 5 mins and help me ?? Here is a part of my data.frame: year country1 country2 contig comlangpop1gdp1 pop2

Re: [R] Assignment problems

I have tried ifelse: trade-data.frame(avgflow,EMU,stringsAsFactors=FALSE) avgflowEURO-rep(0,nrow(trade)) trade1-(for (i in 1:nrow(trade)){ifelse(EMU[i]==1,avgflowEURO[i]-avgflow[i],NA)}) -- View this message in context:

Re: [R] Assignment problems

Does mean(avgflow[EMU]) sum the avgflows for all countrypairs where EMU[i]==TRUE and take the mean ? Practical question: is mean(avgflow[EMU]) = mean(avgflow[EMU==TRUE]) ??? -- View this message in context: http://r.789695.n4.nabble.com/Assignment-problems-tp4578672p4578761.html Sent from the R

Re: [R] Assignment problems

Thank you Rui Can you help me with my ifelse problem - I would like to add a list to my data.frame where avgflow in those rows where ONLY my country pair both are in euro -- View this message in context: http://r.789695.n4.nabble.com/Assignment-problems-tp4578672p4578806.html Sent from the R

Re: [R] How to add specific column to data.set?

Wow it works :) Thank you SO much!! I am very new at R and was thinking if you would explain what these to codes do: countries-data.frame(country1,country2,stringsAsFactors=FALSE) # I know this i a vector with both my county lists but what does stringsAsFacors= FALSE do ?. What if I wantede a

Re: [R] How to add specific column to data.set?

So the lapply function checks every country pair row for row (in my country1 and country2 column) and send back a true if both countries are EU? How do I get a 1 instead of true and 2 instead of false? You have been a BIG help. I have a WHOLE assignment to get done, so maybe I'll post some more

[R] How to add specific column to data.set?

Hi I have a data.set with 7 lists, with over 7000 observations in each list. to of the lists contain country names. like: aus dnk fra aus usa aut itlusa . . . etc. My dilemma is that I want to add an extra column/list to my data.set. If the countries are both european it should be

Re: [R] How to add specific column to data.set?

Hi Michael Sorry it is a data frame where to of the columns are 22 countries arranged in random. I now want to add and ekstra column that is 1 if the country par for the specific row is both european countries and 0 if not. Regards -- View this message in context:

Re: [R] How to add specific column to data.set?

This is the first and last part of my data frame. There is 3465 (not 7000) observations so the 1 or 0 column has to be 3465 rows long aswell year country1 country2 contig comlangpop1gdp1 pop2 gdp2 rtadist avgflow 11992 AUS AUT 0