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How do I label the points in a multidimensional scaling plot?

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I am studying how to do multidimensional scaling in matlab. I am able to reproduce the output (2D plot) from a published example (http://www.sthda.com/english/articles/31-principal-component-methods-in-r-practical-guide/122-multidimensional-scaling-essentials-algorithms-and-r-code/).
The output is based on the data table found in the Swiss Fertility and Socioeconomic Indicators (1888) (https://rpubs.com/krishnakuyate/Swiss_FS_Data).
I constructed a 47x47 array of Euclidean distances (D) of the Swiss Fertility and Socioeconomic Indicators and ran Y=cmdscale(D,2) to obtain a plot of these data:
But how can I get matlab to label the points in my plot as is done above in the published figure?

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Andres Adam
Andres Adam il 6 Giu 2024
Hi Stephen, check out the first example in the documentation of cmdscale:
There is no direct option in cmdscale to add text, but we can do so by using the function text, with the point coordinates offset by a little bit, and a cell array of names:
plot(Y(:,1),Y(:,2),'o') % Your plot
text(Y(:,1)+25,Y(:,2),names)
where the variable names is something like
>> names = {'Herens', 'Sierre', 'Conthey', ... }; (in the appropriate order!)
  2 Commenti
Stephen
Stephen il 6 Giu 2024
Thanks Andres! Yes, that works but I came across a workaround that is a bit easier for me. Namely, I create a cell array "names" with names copy/pasted from the parent data table:
names=cell(n,1) % n = number of names
Then after I generate the multidimensional scalng 2D plot I run
gname(names);
This allows me to place names on indivividual data points by moving the "crosshairs" that appear on the plot ofer that data point and clicking.
I'll try working with both methods to see which is faster for me.
Andres Adam
Andres Adam il 6 Giu 2024
I did not know that feature! Thanks for pointing it out, and be careful to not confuse points when labeling manually :)

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