LabVIEW
How can I add a time column on my tabular data
The image I attached is a VI Snippet. There's a post about them at the top of the forum board (https://forums.ni.com/t5/LabVIEW/Notice-Attach-VI-Snippets-to-post-rather-than-upload/td-p/3660471) which lists ways to download them in links to that post. Basically, if you download the image, you can drag it from explorer to the block diagram and it will recreate the code.
If it pastes an image, you didn't get it quite right. For me, clicking on the image, the choosing the Download icon to the bottom right edge of the image, then dragging (from Explorer, not the browser toolbar) into the block diagram of a new VI works (it doesn't have to be a new VI either - you can drag snippets into existing code if you want to).
@Zaqf wrote:
Thank you so much. Unfortunately , I'm not in the place to work on labview so I'm trying to find answers to all the problems I might find , when I work on it tomorrow . So I could attach a waveform chart to the connection to the array , yeah ?
Thank you so much. Would be great if I could get your email. I'm so debted to your service for my case. 🙏
Re the first point (LabVIEW availability) you should check with your IT department / licence holder - I think since 2017 the Academic Site Licence (which you may or may not have) covers use on personal computers owned by researchers. Looking at the link here: http://www.ni.com/en-gb/shop/academic-site-license.html suggests that benefit extends also to students.
Re the waveform chart - yes, it's possible. In the case of my snippet, you don't want to tick the Transpose Array (right click on the chart), but you should note that in my example the time resets to 0->0.1s every time, so the time array is odd. Typically you'd just add the values for a waveform chart (so a 1D, not 2D array) and then change the X-axis scaling (under properties, you can also use a Property Node, but that's a bit beyond this topic). Google can probably help you find those if you're wanting to do that. Your input may be significantly different to mine (depending on how you're generating it) so you may have a slightly different experience.
If the final point was addressed to me, I don't typically (or indeed, ever, as far as I'm aware) give out my personal email address on public websites, but it's possible to message forum users by their usernames.
@Zaqf wrote:
It's getting pasted as an image.
Probably need some more details, but if you follow the instructions I gave a couple of posts ago it should work. Make sure you download the image - dragging it from the website won't work.
@Zaqf wrote:
And which is the function to tabulate the array ?
I think you're talking about the Write Delimited Spreadsheet function. If not, then perhaps you can describe what you're looking for in more detail. The VIs/Nodes used were just:
- Random Number, Multiply
- Build Array
- Write Delimited Spreadsheet
I expect you want a 2D array, where each row is a 1D array of either times or values.
You might want a time array for each value array, or they might share a time array.
Be careful if they don't have the same sampling rate - you'd need to use clusters in that case (because you can't have different length rows in a 2D array).
If you attach a new copy of your VI (that can be opened in 2017) I can take a look at it.
