Scatterplot in Dataframe

[lokeshh]

I'm trying to draw scatter plot of the following dataframe but it misses some points.

df = Daru::DataFrame.new({
  x: [3, 3, 3],
  y: [1, 2, 3]
  }, index: [0, 2, 3])
Plot.new [df, pt: 6, ps: 1, using: '2:3']

Although if I do not specify any index then it works pretty well.

[lokeshh]

BTW, I'm not sure what using option does? Could someone tell me or point in the direction where I can read about it. Thanks

[ievgrafov]

You may take a look at the option description in Gnuplot doc (http://www.gnuplot.info/docs_5.0/gnuplot.pdf , p.91).

In your case it tells Gnuplot to use 2-nd (as x) and 3-rd (as y) columns (1-st column is index, 2-nd is x and 3-rd is y for you datasheet) to plot you graph.

Please attach graphs, you're getting as a result in both cases.

[lokeshh]

Here's the image when I set a index different than default:

and here's the image when I use the default index: