[R] Zoo or TS

Hi everyone, I'm trying to plot some data across time. I have a list of articles, ranks, date/times, authors, etc. Someone suggested using zoo and someone suggested using ts. I'm pretty new at this and have been trying a simple if() plot() statement, but it doesn't seem to work. I keep getting an

Re: [R] Zoo or TS

I think you need to put quotes around the column header name, something like: NYT[Title] example: my.df - data.frame(header1=1:3, header2=1:3) my.df[header2] Error in `[.data.frame`(my.df, header2) : object header2 not found my.df[header2] header2 1 1 2 2 3 3 Hope that

Re: [R] Zoo or TS

Thank you Tony. I tried that, but still got an error. This is what I got. if(df[Title]==A) + plot(df[B]) Error in `[.data.frame`(df, Title) : undefined columns selected I Think there is something wrong with my file because when I call [,1] It gives me the whole data set, but when I call [,2]

Re: [R] Zoo or TS

ontiveros_pal...@yahoo.com To: r-help@r-project.org Sent: Sunday, February 22, 2009 10:50 AM Subject: Re: [R] Zoo or TS Thank you Tony. I tried that, but still got an error. This is what I got. if(df[Title]==A) + plot(df[B]) Error in `[.data.frame`(df, Title) : undefined columns selected I Think

Re: [R] Zoo or TS

Hello all, I've been able to separate the columns now so that when I call NYT[,9] it gives me just that column. I'm still trying to plot however. When I used the previous if()plot() statement it plots something, but its not what I want. I want to plot the rank vs time, but its just plotting the

Re: [R] Zoo or TS

Sorry, forgot to attach the error it is giving me. if(NYT[Title]==A) + plot(NYT[B],ylim=c(0,50),xlim=c(0,50),ylab=B,xlab=A) Warning message: In if (NYT[Title] == A) plot(NYT[B], : the condition has length 1 and only the first element will be used Thank you Tony Breyal wrote: I think

Re: [R] Zoo or TS

What is NYT? Is it a dataframe? Is Title a column? What exactly are you wanting to plot? Is it just the values in column B where Title is equal to A? The posting guide does suggest that you provide a reproducible set of code/data. You can probably do what you want if you can explain what you