Origin Version (Select Help-->About Origin): 7.5 Operating System: xp
I just recently figured out how to use matrices for 3d plotting in 7.5 and what i need to know is how to plot for e.g. a 10 x 15 matrix if either x or y do not have regular increments. it's easy if its 1 2 3 or 10 20 30 etc...but how do i do it if its sqrt 1, sqrt 2, etc. is this even possible with 7.5?
Sorry. I don't quite understand what kind of plots you want to create, because there are multiple plots that can be generated from matrices. Would you please provide more details?
i think i understand what he meant: once u create the matrix, go to MATRIX and then click on SET DIMENSIONS. then u can put the values manually. this works well when u have a small mismatch. i have no idea how to get an accurate plot when you have a large mismatch in x (or y) increment.
The Origin matrix does not support non-linear mapping of X,Y values. You can only specify First X - The X value of the first column in the matrix Last X - The X value of the last column in the matrix First Y - The Y value of the first row in the matrix Last Y - The Y value of the last row in the matrix The X and Y values of intermediate columns and rows are determined linearly.
If you have XYZ data where the X and/or Y values do not follow a linear increment, then Origin 8 has a new XYZ Contour plot that creates a Contour without going through a matrix (no need to convert XYZ to a matrix first).
matrix plotting in 7.5 (irregular increments in x
Posted - 03/28/2008 : 11:12:23 AM
