I am using seq with the expression seq(1.4, 2.1, by=0.001) to create a sequence
of references from 1.4 to 2.1 in 0.001 increments. They appear to be created
correctly. They have a related pair of data which for the purposes of this we
will call val. I'm interested in the content on the row with seq = 1.8. But I
can't seem to get it returned. I can get other values but not 1.8! yet
looking at row 401 there is nothing to indicate an issue
> a = 1.4
> b = 2.1
> seq = seq(a, b, by=0.001)
> val = ceiling(seq * 50)
> s=data.frame(seq, val)
> s$val[seq==1.799]
[1] 90
> s$val[s$seq==1.8]
numeric(0)
> s$val[seq==1.8]
numeric(0)
> s$val[s$seq==1.800]
numeric(0)
> s$val[s$seq==1.801]
[1] 91
> head(s[s$seq>1.798,])
seq val
400 1.799 90
401 1.800 90
402 1.801 91
403 1.802 91
404 1.803 91
405 1.804 91
Can anyone explain what's going on here and how I would correctly find the
content of row 401 by using an expression to equal the seq column?
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