Re: Plotting live / real-time data from a csv / txt file

[Przemek Klosowski]

Am 05.04.19 um 05:23 schrieb RT:
> > I have thermocouple that creates a CSV file in the format "Date,Time, 
> > Temperature" is it possible to have Octave read the csv file in 
> > real-time and plot the data in real-time?  I'm running Octave 5.1 
> > Ubuntu 64bit.
I don't think you mean 'realtime' with microsecond accuracy---I am 
guessing that your CSV file is being written incrementally with some 
reasonable timing interval, similarly to

while sleep 1; do echo $x,$y>>data; let x=x+1; let y=x%5; done &

In that case, you can simply write Octave code like this:

while 1;  pause(1); csvread('data'); plot(ans(:,1),ans(:,2)); end

This is horrible code---rereads the entire file every second and all, 
but it probably works to show your data.