Deletepoints from 2D wave

Please tell us more. What exactly do you want to delete? Rows? Columns? Multiple? One?

To delete column 5 from a matrix:

DeletePoints/M=1 5, 1, matrixwave

To delete row 5:

DeletePoints/M=0 5, 1, matrixwave

Since the zero dimension (rows) is default, the second one doesn't need the /M=0 flag, but it doesn't hurt.

Replace "matrixwave" with the actual name of your matrix.

I want to delete just one point or may be just a few. Don't want to delete whole row or a column.

thanks

You can't do that to a matrix. If you delete one point from a row, what happens to the last column?

Or do you want to replace that element with something like Nan?

I see your point. Then I guess I have to convert the 2D wave to 1D waves and then delete points separately in each wave.

Yes, that would be what you have to do. And then it is permanently a 1D wave.

If you're using Igor 7 or later, you can use the SplitWave operation to easily split a multidimensional wave into multiple lower dimensional waves (in your case, 2D->1D).

And I see now that you asked a different question about SplitWave, so I guess you already know about it :)

Yes, I did. Thank you.