Displaying 2 results from an estimated 2 matches for "compaison".
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2009 Oct 27
1
New vector based on if/else statement within for loop?
Hello,
I am trying to create a new vector (w) that is based on comparing two
vectors (P and Z). The compaison is simple (I created a for loop that
reassigns w based on if statement), all Z values >= 24 and P values <=1,
w=88 else w=77. I am not getting the correct results for w, see
example code below. Any thoughts or suggestions on the correct method.
Thank you,
Doug
P <- c(0,1,2,3,4,5,...
2008 Nov 10
1
comparing rows - a possible solution
...r-help as
digest...
...
The question was:
> I compare each row of a matrix with each row of another matrix.
>
> testmat1 <- matrix(c(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16), nrow=4)
> testmat2 <- matrix(c(1,2,3,5,5,6,7,8,9,10,11,12,13,14,15,16), nrow=4)
and it was asked for a compaison of the both matrix-objects and the
result should be a vetor with boolean results.
I would use this one:
as.vector( testmat1 == testmat2 )
or maybe
as.vector( t(testmat1) == t(testmat2) )
but the result as a matrix might also be interesting,
so as.vector() could be thrown out, and one woul...