I am new to node red and i am trying to plot line chart of real time data, but nothing is display on chart My flow. [{"id":"5c0f3e4b.7b304","type":"tab","label":"Vibration_Dashboard","disabled":false,"info":""},{"id":"b6aa9d6f.49572","type":"debug","z":"5c0f3e4b.7b304","name":"debug","active":true…

Here is the output of debug node. [image]

Here is another thread where you can find how to use highcharts library and present it inside ui_template node. Plot a time series using highcharts Examine the code inside the ui_template node first and see the difference with your code. Adjust your code to get the library correctly working and i…

What does the data look like if you click on the arrows?

i am stuck in Hichart template code. how to pass values to x and y axis in Highchart template code? This is my function code var point={} var buffer=msg.payload.split(","); var values= ; point.x=parseInt(buffer[0]) point.y=parseInt(buffer[1]) values.push(point); msg.payload= [{data:values}]…

You said you want to plot it in real time. Are the x and y you show to be drawn as separate lines on the chart (so one line showing how x changes over time and another showing how y changes over time)? or are you trying to draw a line showing x against y where neither of those is time?

This is a double thread which one do we answer on? [image] Vibration_sensor General I want to plot a line chart of vibration sensor Data. Following is my flow. How can i plot a real time line chat using node red where x-axis will be frequency and y-axis will be amplitude. …

As mentioned on other topic you can have two lines over time. e.g. [{"id":"33bf91f5.fd2cee","type":"inject","z":"d758c823.606a8","name":"","props":[{"p":"payload"},{"p":"object","v":"","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[{'x':'23','y':4}]","pay…

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How to Plot line chart of real time data

General

kajal 2 February 2021 10:12 11

i am trying to draw x vs y.

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How to Plot line chart of real time data

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