Good day, I have so far created a waveform chart but showing all the datas in one go. I'd like to show it some portion of data for every 30 seconds until all data in the spreadsheet is shown. Detailed: In the spreadsheet file, the first column will be use as a 'plot' to show the data. Meaning that from 0-128 will be shown for 30 seconds, then the next data of 0-128 will continue to show for 30 seconds until data finishes. My plan is to use for loop, however failed to do so. My aim is to show data interval like this https://www.youtube.com/watch?v=kxWUCADgGbA Your kind assist is appreciated.

1. Since you want your chart updated every 300ms, then you need to move the terminal to be inside of the loop. 2. You need to update which row to start from each iteration. This is some simple math with the i terminal and the number of samples you want to display. 3. The file you gave us only has 128 samples of 14 channels. So the loop should only iterate once. You can do some simple math to determine the number of iterations to perform (total number of samples in the file divided by the number of samples to display).

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Adding for loop into Waveform chart to output portion of data for every 30 seconds until data finishes

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Thanks so much @crossrulz for assisting. I have figured out and fix the problem and it ran perfectly to where I want it to be.

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Adding for loop into Waveform chart to output portion of data for every 30 seconds until data finishes

Re: Adding for loop into Waveform chart to output portion of data for every 30 seconds until data finishes