topic Re: inserting new column in 2D array retaining previous column values in LabVIEW

inserting new column in 2D array retaining previous column values

RAGIL — Thu, 25 Oct 2018 06:33:35 GMT

Hello Everyone..

I've got a program in which simulate signal outputs signals with different frequencies. I want to store that signal amplitude values in 2D array. Each column of 2D array must contain that particular signals amplitude values. for eg: if 10 Hz is selected, the first column should have 10Hz signal's amplitude value, if 20 Hz is selected then second column should have its respective amplitude value but the first column should retain 10Hz signals amplitude value.

How can I solvedo this? Pls help

Re: inserting new column in 2D array retaining previous column values

GerdW — Thu, 25 Oct 2018 06:36:09 GMT

Hi ragil,

1. initialize the array to provide elements for all frequencies to be measured.

2. store the array in a shift register

3. replace just the column for the last measurement frequency

You need InitArray, a loop with a shift register and ReplaceArrayElements…

Re: inserting new column in 2D array retaining previous column values

altenbach — Thu, 25 Oct 2018 07:39:31 GMT

In addition, I would recommend that you keep the data in rows instead of columns. Now the elements for each new experiment are adjacent in memory. You can always transpose it for saving later.

Re: inserting new column in 2D array retaining previous column values

RAGIL — Tue, 13 Nov 2018 07:06:42 GMT

Hi..

I did same as you told and implemented in my program layout. But still it is not giving proper output.

Vi attached please let me know the mistake.

Thanks in advance