I must be doing something wrong. I can’t get vcat and plot to work inside a script. When I use them in the terminal the commands work fine but inside a script vcat returns no error and an empty dataframe. Plot has a similar behavior. No response inside a script but in the terminal works fine.
Please read the guidelines here and post a MWE. Thank you.
b_d = string(Date(begin_date, “mm/dd/yyyy”))
e_d = string(Date(end_date, "mm/dd/yyyy")) global s_d_df = DataFrame(underlying_symbol = , quote_datetime = , open = , high = , low = , close = , trade_volume = , vwap = , bid = , ask = ) global tmp_stock_df = DataFrame() # Get the file list from the data directory global file_list = glob("*3600*.csv", path) # Filter to select csv files # File names include the date, sort from earliest date to latest sort!(file_list) # Extract the file names associated with the date timeline from the file list start_row_num = findfirst(x -> occursin(b_d, x), file_list) len = length(file_list) last_file = file_list[len] end_file_date = Date(last_file[31:40]) if Date(e_d) > end_file_date e_d = Dates.format(end_file_date, "yyyy-mm-dd") end end_row_num = findfirst(x -> occursin(e_d, x), file_list) f_l = file_list[start_row_num:end_row_num] # Build a dataframe containing the data len = length(f_l) tmp_stock_df = DataFrame(CSV.File(f_l)) vcat(s_d_df, tmp_stock_df) println(s_d_df) for i = 2:len tmp_stock_df = DataFrame(CSV.File(f_l[i])) tmp_stock_df.quote_datetime = map((x) -> DateTime(x, "yyyy-mm-dd HH:MM:SS"), tmp_stock_df.quote_datetime) DataFrames.vcat(s_d_df, tmp_stock_df) end
Your code does not run.
There is no plot command.
Include all packages being used.
This is suspicious and probably not what you actually want.
vcat creates a new array (or data frame) with the concatenated result and returns it. Since you’re not using that returned value, it has no effect at all.
You need something like:
result = vcat(s_d_df, tmp_stock_df)
result will now hold the concatenated output.
Ok. That worked. Thank you. More on plot later.