| T O P I C R E V I E W |
| DaLuan |
Posted - 01/04/2019 : 1:11:01 PM
Origin Ver. pro 2016 and 2018b (from university)
Operating System:Windows 10
hello,
I have data for the scattering length density (SLD) from some x-ray reflectivity experiments and the SLD plots just fine, but when I try to plot the derivative of this graph (by Analysis->Mathematics->Differentiate (1st order)), the result is entirely blank. Back in the worksheet, the new column created starts with a zero for the first value and fills in the remaining cells with " -- "
I have also tried doing it directly from the worksheet, and using the differentiate gadget on the graph. The result is the same. I have attached an image illustrating the problem.
I have managed this before with other datasets so I don't know what is wrong with this one.
Can anyone explain what might be wrong / how I can plot the derivative of the SLD data?
Thank you very much |
| 2 L A T E S T R E P L I E S (Newest First) |
| DaLuan |
Posted - 01/05/2019 : 07:16:34 AM
quote:
Originally posted by YimingChen
Hi,
This is because your x column contains duplicated values. To remove duplicates, please use menu Worksheet: Remove/Combine Duplicated Rows....
Thank you
James
Thank you so much! ^_^ |
| YimingChen |
Posted - 01/04/2019 : 2:10:48 PM
Hi,
This is because your x column contains duplicated values. To remove duplicates, please use menu Worksheet: Remove/Combine Duplicated Rows....
Thank you
James |
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