Thank you. Please, how to create main column (y-axis) and main rows (x-axis) manually, not by "from to" because my data not arranged (the step by step are different values).
@@NiekBuurma Thanks, I found the solution, it is: the regular matrix only supports a linear spacing in the X and Y dimensions, a virtual matrix supports irregular spacing of X and Y coordinate values (provided those values are in ascending or descending order).
Hi i have a doubt my X data is not evenly spaced so because of that in matrix data is not plotted correctly. CAN YOU PLEASE HELP ME REGARDING FOR THE SAME?
Hello! The way I have dealt with this is through Python. Using meshgrid in numpy, you can turn irregular xyz data into data on a regular xy coordinates using an interpolation algorithm. I understand that this requires a lot of work (including coding), but it does work.
How can I chage values of X and Y if I want to have fixed (my own) vaues, not calcuated. I have data from SMPS device so on Y axis I have fixed values of particle sizes, how can I put them in ???
@@NiekBuurma nope. that's the thing - I don't want them to be regularly spaced. I managed to do this, but I had to use "spreadsheet data to XYZ" option.
@@klaudiapy1178 Yes, that's right. There is another option I have been playing with, which involves turning irregular xyz data into a regular data using an interpolation algorithm in python (numpy meshgrid)
It depends on what you want to do exactly. If you want to show a (non-circular) contour on a circular x,y base, you need to define your data so that the x,y data reflects a circle. If you want the contour lines themselves to be circular as well, you need to define a symmetric peak. If that's what you want, let me know some coordinates and I can suggest something.
thank you for upload areal data. please upload a video this data in matlab
Thank you. It was really helpful.
Thanks for your kind feedback!
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Thanks!
Thank you.
Please, how to create main column (y-axis) and main rows (x-axis) manually, not by "from to" because my data not arranged (the step by step are different values).
Are the data still organised in a regular grid-wise manner but with irregular step sizes?
@@NiekBuurma Thanks, I found the solution, it is: the regular matrix only supports a linear spacing in the X and Y dimensions, a virtual matrix supports irregular spacing of X and Y coordinate values (provided those values are in ascending or descending order).
Hi i have a doubt my X data is not evenly spaced so because of that in matrix data is not plotted correctly. CAN YOU PLEASE HELP ME REGARDING FOR THE SAME?
Hello! The way I have dealt with this is through Python. Using meshgrid in numpy, you can turn irregular xyz data into data on a regular xy coordinates using an interpolation algorithm. I understand that this requires a lot of work (including coding), but it does work.
Other than using regular intervels cann't we define the intervels of x and y in this method(need to avoid using x, y, z coordinate method)?
I have never tried that. What I have done instead is write some python code that remaps the data onto a regular grid.
Hi. Nice information. Can you do with matlab?
Do you mean plotting the data using matlab? I'm sure that's possible but not something I have created a video for. Sorry!
So where have you plotted the data? Using which software?
@@dr.arpitachakraborty4201 The plot is created in Origin.
nice，this is skill what I am want get 。 thank you
Thanks for your kind comment!
excellent！how can i get the coordinates of positive peaks and negative peaks in Contour maps of synchronous and asynchronous 2D correlation spectra
How can I chage values of X and Y if I want to have fixed (my own) vaues, not calcuated. I have data from SMPS device so on Y axis I have fixed values of particle sizes, how can I put them in ???
Are the x and y values regularly spaced?
@@NiekBuurma nope. that's the thing - I don't want them to be regularly spaced. I managed to do this, but I had to use "spreadsheet data to XYZ" option.
@@klaudiapy1178 Yes, that's right. There is another option I have been playing with, which involves turning irregular xyz data into a regular data using an interpolation algorithm in python (numpy meshgrid)
hi thanks for sharing. but i just wonder if i want to draw a contour in a cirlce shape, how should i do?
It depends on what you want to do exactly. If you want to show a (non-circular) contour on a circular x,y base, you need to define your data so that the x,y data reflects a circle. If you want the contour lines themselves to be circular as well, you need to define a symmetric peak. If that's what you want, let me know some coordinates and I can suggest something.