Delete "dead zone" from array

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John F 2012-7-19

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https://ww2.mathworks.cn/matlabcentral/answers/44030-delete-dead-zone-from-array

Hi everyone,

I was wondering if there was a way to quickly remove a region of "dead" signal from an array that contains only zeros.

Example: say i have the following array

[1 6 6 4 3 4 6 0 2 0 2 5 6 4 3 8 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 4 3 6 2]

Is there a way to find and delete the dead section?

[1 6 6 4 3 4 6 0 2 0 2 5 6 4 3 8 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 4 3 6 2]

[1 6 6 4 3 4 6 0 2 0 2 5 6 4 3 8 0 0 0 1 6 4 3 6 2]

Thanks!

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Jan 2012-7-19

编辑：Jan 2012-7-19

Of course a useful answer can only be given, when you define "dead zone" exactly. E.g. why is the highlighted zone in your example dead, but the former [0,0,0] is alive?

It is not likely that a solution is successful, if it is based on guessing what the actual problem is.

John F 2012-7-19

I couldn't agree more. I collected data in spurts of 1.25 million points at a high rate. If an error occurred in writing the file, an array of zeros resulted. I might have to look at the guts of the file to find out what triggered the "all zero" report and factor that into my analysis.

Thanks for clarifying!

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