How to do format write correctly?

General Usage
1

I am sorry another stupid question, I read the IO part of the Julia documents I/O and Network · The Julia Language, but I am still too stupid to do the following simply thing.

For example, the short illustration code below is what I wrote,

LL = [-1129.252,-648.5315,-553.8973,-461.6156,-356.7228,-265.5437,-170.7289,-86.96198,-40.47620,-23.48844,-20.80410]
io = open("myfile.txt", "w")
for i in 1:length(LL)
    write(io, "$(i)  $(LL[i]) \n")
end
close(io)

The output is like,

1  -1129.252 
2  -648.5315 
3  -553.8973 
4  -461.6156 
5  -356.7228 
6  -265.5437 
7  -170.7289 
8  -86.96198 
9  -40.4762 
10  -23.48844 
11  -20.8041

You see the line 9 and 10, the values are not very well aligned.

In Fortran, i can do format write things like,

do iter = 1,10
     write(11,'(i10,1x,g15.7)') iter, Loglike(iter)
enddo

the format (i10,1x,g15.7) can make the values well aligned,

     0   -1129.252    
     1   -648.5315    
     2   -553.8973    
     3   -461.6156    
     4   -356.7228    
     5   -265.5437    
     6   -170.7289    
     7   -86.96198    
     8   -40.47620    
     9   -23.48844    
    10   -20.80410

I know in Julia it can use the same printf grammar like C. However, I tried some printf grammar in the write, but it does not work.

Does anyone knows how to achieve similar effects as the Fortran results?

Thank you very much in advance!

2

https://docs.julialang.org/en/v1/stdlib/Printf/

Is what you’re looking for I think

3

https://docs.julialang.org/en/v1/stdlib/Printf/

Is what you’re looking for I think

Things like

@printf(io, “%10d %0.f \n”, i, LL[i])

did the trick.

Thanks. Sorry I did not notice that printf can serve as write.

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