So I’m trying to draw a streamlines of a Rankine oval using gnuplot. I have one .gp file to generate the datapoints and dump them in cont.dat

Current histogram

I need help to get:

I must state that this is my first time dealing with gnuplot. I am getting cpu temp via ipmitool and sending it to a file. The data is appended to the file in this format $TIME $CPU1 $CPU2, the time var is TIME=$(date +”%Y-%m-%d %H:%M”) in the script that generates the data.

a newbie question: what is the gnuplot code to drawing a circle with assigned center (x,y coordinates) and assigned radius?

I’m plotting a CSV file and am wondering why the resulting plot does not represent the input data.

I’m trying to sort just the 1st column of the following file (“dat0.txt”):

I would like to have a gnuplot script which may or may not plot a file depending on some condition. Using /dev/null if I don’t have to plot a file works, but gives a “Skipping data file with no valid points” warning that I would like to silence.

I’ve got OHLC data for the S&P 500 that I would like to plot as a so-called Renko plot ( https://en.wikipedia.org/wiki/Renko_chart ) in gnuplot. I have transformed the OHLC data to fixed-size bricks represented in data.dat as the upper and lower diagonal corners of rectangles:

I am trying to draw a few graphs relative to a time axis that should automatically draw anything from the samle starting 2 days back since time of plotting. I couldn’t figure it out with gnuplot’s mechanics, so did this