Re: [R] How to quick check two rows are the same?

Or possibly use 'all.equal' rather than 'identical' if the data are floating point numbers. Also these are columns, not rows. On 08/07/2010 00:35, Erik Iverson wrote: Yi wrote: Hi, folks, Suppose the data is as follows: ### x=1:10 y=2:11 z=3:12 data1=data.frame(x,y) data2=data.frame(x,

Re: [R] How to quick check two rows are the same?

Yi wrote: Hi, folks, Suppose the data is as follows: ### x=1:10 y=2:11 z=3:12 data1=data.frame(x,y) data2=data.frame(x,z) ## In real case, how to check data1$x and data2$x are the same or not? I am using for-loop to do this. Is there a quicker way? all(data1$x == data2$x) or i

[R] How to quick check two rows are the same?

Hi, folks, Suppose the data is as follows: ### x=1:10 y=2:11 z=3:12 data1=data.frame(x,y) data2=data.frame(x,z) ## In real case, how to check data1$x and data2$x are the same or not? I am using for-loop to do this. Is there a quicker way? Thanks! Yi [[alternative HTML ver