Am 30.10.2019 um 20:29 schrieb s1291:
On Wednesday, October 30, 2019 at 8:19:30 PM UTC+1, Hans-Bernhard Bröker wrote:
Am 30.10.2019 um 15:38 schrieb s1291:
What if I want to plot the points with even x value using 'every' keyword? that is, the points (2, 2.0), (4, 4.0) (6, 6.0).
Then you continue reading the documentation of the 'every' option, which
you already found.
Thank you for your reply.
I've read the documentation but I don't see how to do that.
Read again ;) (under "help every")
plot 'file' every {<point_incr>}
{:{<block_incr>}
{:{<start_point>}
{:{<start_block>}
{:{<end_point>}
{:<end_block>}}}}}
Your default start_point is zero. You just set it to "1":
plot dataf every 2::1
Alternative (plot even data, not even point/line numbers)
plot dataf us ($1 % 2 == 0 ? $1 : NaN):2
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