[R] Making multiple columns to a single column

Hi guys, I have a very simple question. I'm trying to make multiple columns to a single column. For example, *ttx1* is a 46*72 matrix. so, I tried this. *d1=ttx1[,1] d2=ttx1[,2] ... d72=ttx1[,72]* now, d1, d2, ...,d72 become a 46*1 matrix. And then.. I tried.. *dd=rbind(d1, d2, ..., d72)* I

Re: [R] How to deal with this :" object ' obs' not found.

ttx1,"c:/i.csv") > m=read.table("c:/i.csv", header=T, sep=",") > attach(m) > sortedx1=m[order(-obs),] Do you know what I should do? Thanks. -Hyo On Fri, Oct 2, 2009 at 8:50 PM, jim holtman wrote: > It is clear that 'obs' does not exist. > > O

Re: [R] How to deal with this :" object ' obs' not found.

Thanks.. but not working... > sortedx1=ttx1[order(-ttx1$obs),] Error in ttx1$obs : $ operator is invalid for atomic vectors On Fri, Oct 2, 2009 at 8:47 PM, P Ehlers wrote: > Try > > sortedx1=ttx1[order(-ttx1$obs),] > > (and ask yourself where obs lives) > > -Peter

[R] How to deal with this :" object ' obs' not found.

Hi guys, I need your help. I'm trying to sort the data by the variable "obs". This is how I tried to sort the data below. The problem is, I have a variable name "obs"; this is.. a counter variable. something like _n_ in SAS. I do not know why it is not working. I even tried a similar example in UC

[R] How to select a subset

Hi guys, I need your help. I would like to select a subset from a dataset. This is the dimension of the dataset. > dim(data1) [1] 72 36 1916 so, it's like.. there are 1916 of 72 * 36 matrix. ==> looks like 72 * ( 36*1916 ) ** *1)* And I would like to select the first 72*36 matrix. This is h

[R] Teach me how to transpose in R

Hi guys, I need your help!! My goal is to make a csv file from ncdf file. This is the code i've used : > hyo=open.ncdf("C:/CRUTEM3.nc") > hyo [1] "file C:/CRUTEM3.nc has 4 dimensions:" [1] "longitude Size: 72" [1] "latitude Size: 36" [1] "unspecified Size: 1" [1] "t Size: 1916" [1] "-