Creating an array from 1 2D array of numbers and 1 1D array of timestamp values

[Programming_beginner]

How do you combine both  the array and the timevalues? Both have the same number of rows but I am not sure how to combine so that I can output a csv file. Thank you. (I transpose the 2D array so that it has 3 columns of y data points, with y number of timestamps)

[GerdW · Accepted solution]

Hi beginner,

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@Programming_beginner wrote:

How do you combine both  the array and the timevalues? Both have the same number of rows but I am not sure how to combine so that I can output a csv file. Thank you. (I transpose the 2D array so that it has 3 columns of y data points, with y number of timestamps)

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Simple solution: convert to timestamp array to a DBL array using the ToDBL function. Then prepend the additional row/column as discussed in your other thread(s)!

Warning: this result may not fit with your requirements as it converts the timestamp to the number of seconds since LabVIEW epoch.

So what are your requirements?

[Programming_beginner]

will try that. Thank you.

[Programming_beginner]

Here are my timestamp values. If I use a DBL function, it just outputs an array of constant numbers.

Is there any other way?

[Programming_beginner]

Also, I would like to insert a column heading (1D array of strings), but the data type just doesn't match.

EDIT: Just decide to call multiple write to csv (one for string type, then the other with just numeric data with append set to True)

[GerdW · Accepted solution]

Hi Beginner,

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@Programming_beginner wrote:

Here are my timestamp values. If I use a DBL function, it just outputs an array of constant numbers.

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Did you read my previous message carefully?

I explained "Converting timestamps to DBL gives the number of seconds since LabVIEW epoch" - do you understand that sentence? Did you read the LabVIEW help on timestamps?

(And no: when the timestamps differ, then you will NOT get an array of constant numbers.)

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@Programming_beginner wrote:

Is there any other way?

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I asked for your requirements, but you didn't provide them!

You can also convert the timestamps to strings: I recommend to read ISO8601…