[R] merging data frame with world map

2016-03-07 Thread hoda rahmati via R-help
Hi all,I have a data frame which have a column named COUNTRY, I want to merge my data frame with world map from ggmap to plot it on world map, but when I merge my data frame with world map I get 0 observations! Here is my main data frame (mydata):     'data.frame':   269265 obs. of  470 variabl

Re: [R] removing factor values in the main data frame

2016-03-01 Thread hoda rahmati via R-help
I also tried droplevels but after getting str(submydata) again I see no changes in COUNTRY  On Tuesday, March 1, 2016 8:38 AM, Ulrik Stervbo wrote: Hi, I think droplevels(df) is what you are looking for. Best wishes, Ulrik On Tue, 1 Mar 2016 at 17:33 hoda rahmati via R-help wrote

[R] Fw: removing factor values in the main data frame

2016-03-01 Thread hoda rahmati via R-help
Hi all,I have the following main data frame:(mydata)        $ TE : num 40 40 20 20 20 20 20 20 20 40 ...        $ TR : num 49 49 28 28 28 28 28 28 28 49 ...         $ COUNTRY : Factor w/ 27 levels "","AU","BA","BE",..: 8 8 8 8 8 ...among the COUNTRY I just need US and AU,first I get a subs

[R] removing factor values in the main data frame

2016-03-01 Thread hoda rahmati via R-help
Hi all,I have the following main data frame:(mydata)        $ TE : num 40 40 20 20 20 20 20 20 20 40 ...        $ TR : num 49 49 28 28 28 28 28 28 28 49 ...        $ COUNTRY : Factor w/ 27 levels "","AU","BA","BE",..: 8 8 8 8 8 ...among the COUNTRY I just need US and AU,first I get a subset to c

[R] Fw: adding a column to data frame solving the replacement problem

2016-02-26 Thread hoda rahmati via R-help
It seems to me that you misunderstand how objects (data.frames) in R work. see in line > -Original Message- > From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of hoda > rahmati via R-help > Sent: Wednesday, February 24, 2016 3:39 PM > To: r-help@r-project.org > Subject:

[R] adding a column to data frame solving the replacement problem

2016-02-24 Thread hoda rahmati via R-help
Hi all,  I have a data set (mydata) containing 471 variables. One of the columns looks as below  $ Sequence : Factor w/ 3 levels "","%Seq%gre",..: 2 2 2 2 2 2 2 2 2 2 ...  sequence contains %Seq%gre and %Seq%tse and I extract only %Seq%tse and add it to my variables and plot a scatterplot of m