Re: Highlight a specific point in the graph

[Michael Goffioul]

idx = [4, 8];
plot (x, y);
hold on;
plot (x(idx), y(idx), 'o');

Michael.


On Tue, Mar 11, 2008 at 7:09 AM, Leandro Sales <address@hidden> wrote:
> Please, suppose the following example:
>
>  I have a graph x=time, y=throughput. Consider the workload below,
>  where in the first column we have the time in seconds and in the
>  second column the throughput in Kbits/s (just to contextualize):
>
>  x  y
>  -------
>  1  10
>  2  12
>  3  15
>  4  1
>  5  16
>  6  13
>  7  14
>  8  17
>  9  15
>
>  In this example realize that in x=4 seconds the throughput is so
>  allow, y=1 Kbits/s, if we compare with the other (x, y) points, where
>  the throughput ranges between 12 and 17 Kbits/s. I want to plot a
>  graph and highlight (using a arrow, a triangle, a circle, ...) that
>  point (4, 1). Is this possible? I expected that octave give me a way
>  to flag that points, something like: "highlight that point, that point
>  and that point", something like:
>
>  1  10
>  2  12
>  3  15
>  4  1   HIGHLIGHT
>  5  16
>  6  13
>  7  14
>  8  17 HIGHLIGHT
>  9  15
>
>  ... and when octave finds (4, 1) and (8,17) it highlights that points.
>
>  Thank you in advance. Any comment/clue will be greatfully appreciated.
>
>  Cheers,
>  Leandro.
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