Welcome to the Julia community! First, it’s best to format your code output with backticks ``` like this:
julia> dfV = DataFrame(
pt1 = rand(1.0:0.01:99.00, 10),
pt2 = rand(-99.0:0.01:-1.0, 10)
)
10×2 DataFrame
│ Row │ pt1 │ pt2 │
│ │ Float64 │ Float64 │
├─────┼─────────┼─────────┤
│ 1 │ 61.91 │ -67.4 │
│ 2 │ 58.66 │ -2.84 │
│ 3 │ 67.24 │ -74.39 │
│ 4 │ 88.18 │ -5.67 │
│ 5 │ 56.37 │ -61.79 │
│ 6 │ 82.63 │ -87.87 │
│ 7 │ 12.39 │ -83.12 │
│ 8 │ 20.24 │ -97.55 │
│ 9 │ 62.59 │ -42.87 │
│ 10 │ 95.64 │ -12.08 │
You should be able to copy/paste directly from your REPL this way and it’s much easier to see what’s going on. You should also check out this thread.
I’m not 100% certain as to what it is you’re trying to do but for iterating over the rows of a DataFrame you can just do:
for row in eachrow(dfV)
# do something here...
end
If you need to do some sort of nested iteration, you can do:
for vrow in eachrow(dfV), srow in eachrow(dfS)
# do something here...
end
It looks like you’re just trying to compute the Euclidean distance between points and I suspect there is a better way of approaching the problem. Distances.jl exports a colwise
function as well as a pairwise
function so I would probably check those out to see if they do what you need them to.