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error from wxt

I was using gnuplot in Ubuntu with wxt terminal, and when I type in plot sin(x), I get an error message:

Unable to init server: Could not connect: Connection refused 23:00:40: Error: Unable to initialize GTK+, is DISPLAY set properly? Failed to initialize wxWidgets.

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  • Is this real Ubuntu - or Ubuntu via Windows Subsystem for Linux (WSL)? Commented Nov 25, 2021 at 23:20
  • By default, gnuplot expects a graphical environment. In gnuplot, help set terminal will show other choices. Commented Nov 25, 2021 at 23:37
  • @steeldriver I'm using Ubuntu in a box on windows- I actually didn't know WSL has Ubuntu... Commented Nov 25, 2021 at 23:45
  • @waltinator Yeah, I tried some other terminals, fig and png for example, but they either showed me a block of numbers or some garbled characters, and there's no plotting window. Commented Nov 25, 2021 at 23:48
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    fig and png are file formats - you will need to redirect their terminal output to a file, which you may then copy to and view in your Windows GUI if your Ubuntu system is CLI only. Commented Nov 26, 2021 at 0:06

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