How get only one value from a CSV file

Hello, I have a query. I am currently graphing a data series from a .CSV file and everything is perfect, but now I need to grab the last recorded value of a single column in particular. The file contains 4 columns, A,B,C,D but I only require the last recorded value of column C for example, and then display it on the dash board with the "text" node. In this file the data is stored from the oldest to the most current. I hope you help me, regards.

Hi, maybe this flow helps you to implement the solution. Please compare the csv node configuration, maybe you have to implement a second csv node as a parallell process if configuration differs.

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Cheers

There is also this thread that would give you some valuable pointers in how to achieve it

Craig

Hello, I implemented this flow with the corresponding modifications, but when running it the node red was blocked and I could not reconnect. I had to delete the root flow to be able to access it again, I don't know what could have happened. :frowning:

If you make a mistake in the flow which causes node-red flows to lock up for some reason, you can start node-red using
node-red --safe
which will start the editor without starting the flows. Then you can fix the problem and deploy to start the flows running.

Thank you for your reply. I am trying to resolve the main issue. :frowning: