| Author |
 Topic  |
|
|
oriundo
UK
Posts |
 Posted - 07/27/2005 : 05:48:00 AM
|
Origin Version (Select Help-->About Origin): v7.5870
Operating System:XP
I don't have much experience using Origin and i have a problem. I have exported my data from excel and i need to calculate the area under the curve using the "Integrate Function" but i can't, Origin just integrates the curve but i can get the area (do i have to change some options)?? .... any suggest?? thank you very much..
Omar |
|
|
Mike Buess
USA
3037 Posts |
Posted - 07/27/2005 : 06:52:46 AM
|
The area is given by the labtalk property integ.area. If you run the command from the menus (Analysis > Calculus > Integrate) the result will also appear in the Results log window.
Mike Buess
Origin WebRing Member |
 |
|
|
oriundo
UK
Posts |
Posted - 07/27/2005 : 10:30:37 AM
|
ok, Thanks....
Can I choose any part of the plot and measure the area??? If, so, could you tell me howp lease?? Many many thanks....
Omar |
|
|
|
Mike
USA
357 Posts |
Posted - 07/27/2005 : 11:17:01 AM
|
Hi Omar,
Here's what you do:
1. Plot your data.
2. Use the Data Selector tool (Tools toolbar) to define that portion of the curve under which you want to calculate the area (the way this tool works, when you select the toolbar button, a data marker will appear at either end of your plot. Drag the marker on the left to the left-most point on the segment of interest, then drag the right-most marker to the right-most point on this segment and double click on that point. This will "set" the markers.
3. Now, just choose Analysis:Calculus>Integrate.
Mike
OriginLab
Edited by - Mike on 07/27/2005 11:19:44 AM |
|
|
|
oriundo
UK
Posts |
Posted - 07/27/2005 : 11:56:46 AM
|
Ok Mike, thank you very much!!!!!!
Cheers |
|
|
|
Mike Buess
USA
3037 Posts |
|
| |
Topic |
|
Integrate Function