Rename column if its name matches to a name in given list

[raman_kumar]

@algunion

You can see that you are using the df, which you didn’t pass to the function as an argument

@algunion @kellertuer Good night
see changes.I will respond tomorrow .

Summary

using HTTP, CSV, DataFrames
function doanalysis()
    dfg=nothing
	function change(df)
          		name=names(df)
   			    list = ["time", "Tmid", "T0", "t-T0", "t-to"] # rename  to "Time"
    			listb = ["mag", "Limit", "Magnitude", "OT", "magn"]
    			for i in 1:length(name)
        			if name[i] in list ;  rename!(df,Dict("name[i]"=>"Time")); end
        			if name[i] in listb ; rename!(df,Dict("name[i]"=>"Mag")); end
    			i=+1
    			end
	end
    for x in 31520
    print("\r peeking at GCN $x ")
        try
            url = "https://gcn.nasa.gov/circulars/$x.txt"
            resp = HTTP.get(url) 
            status=resp.status
            print(" ",status," "); 
            if status == 404 ; println("status=",status); continue; end          
            txt = String(resp.body)
            grb_rexp=r"GRB ?\d{6}([A-G]|(\.\d{2}))?"
				m=match(grb_rexp,txt)
				grb="nogrb"
                if occursin(grb_rexp,txt)
				    print(m.match)
					grb=m.match
			    end
            if occursin("IKI", txt)
                println(" IKI report")                
                he=first(findfirst(r"^(Date)|(UT start)|(T0+)"m,txt))
                lr=first(findnext(r"^\nThe |(Photometry)"m,txt,he))-1
                cltxt=replace(txt[he:lr], ","=>" ",r"(�+)"=>" " , "+/-"=>" ",">"=>" ","(mid)"=>" ",r"UT ?start"i=>"UT_start")
                df=CSV.read(IOBuffer(cltxt), DataFrame, skipto=3, delim=" ", ignorerepeated=true)
                df.GCN=[x for i in 1:nrow(df)]
                df.GRB=[m.match for i in 1:nrow(df)] 
				change(df)
				if isnothing(dfg) 
                     dfg=df
                else
                    @show dfg=vcat(dfg,df,cols=:union)
                end # if x is first
            end # if occursin
					catch e
		rethrow(e)
        end # trycatch
    end # for loop
end
doanalysis()