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Displaying change in r value from a selected sample of a dataset [message #1808] Tue, 17 January 2023 14:57 Go to next message
Jo W
Messages: 30
Registered: July 2021
Member
In DW it's possible to obtain a fitted line on a sample from a larger dataset. This I find really helpful for example, in looking for sub sets of compounds that may have some possible correlation but may be overlooked when you just look at the dataset as a whole.

However, when doing this in DW, the r values does not correspondingly change to the new fitted line (see attached image for clarification).

- i.e., in the attached image you can take a sample and see the change in the fitted line but the r value stays the same, in this case at 0.49.

It would be good to also see not only the new fitted line on the selected sample, but also the change in the r value as well.

Is it possible to add this as a (minor?) feature change?



Re: Displaying change in r value from a selected sample of a dataset [message #1813 is a reply to message #1808] Fri, 20 January 2023 12:44 Go to previous messageGo to next message
thomas is currently offline  thomas
Messages: 562
Registered: June 2014
Senior Member
Many thanks for suggesting. I just have implemented the change and deployed as dev update.
Re: Displaying change in r value from a selected sample of a dataset [message #1814 is a reply to message #1813] Fri, 20 January 2023 13:34 Go to previous messageGo to next message
Jo W
Messages: 30
Registered: July 2021
Member
Many thanks
Re: Displaying change in r value from a selected sample of a dataset [message #1815 is a reply to message #1814] Sat, 21 January 2023 14:53 Go to previous messageGo to next message
Jo W
Messages: 30
Registered: July 2021
Member
Thomas
Is it also possible to add this to "Assess Prediction Quality" feature- i.e., a selected portion of the 2D graph is assessed rather then the existing choice which at the moment is the "structure" column in the table?
Re: Displaying change in r value from a selected sample of a dataset [message #1816 is a reply to message #1815] Sun, 22 January 2023 18:07 Go to previous messageGo to next message
thomas is currently offline  thomas
Messages: 562
Registered: June 2014
Senior Member
I am not sure, whether I understand correctly: Couldn't you achieve the same thing by just calling "File->New From Selection" and then run the "Assess Prediction Quality"?
Re: Displaying change in r value from a selected sample of a dataset [message #1839 is a reply to message #1816] Fri, 03 February 2023 23:08 Go to previous message
Jo W
Messages: 30
Registered: July 2021
Member
I tried this and it works - so many thanks for the suggestion. I didn't realise you could do that.

It would also be convenient sometimes, to keep the various predictions in the same DW file rather than generate a new one and ideally have all the predictions on the same graph - and if possible to colour code each of the generated fitted lines (e.g predicted vs experimental generated from KNN, PLS etc) to easily visually compare the predictions and also have the r values listed. Is that possible?
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