Miss to find the min when the real min is at the beginning

[petercreateParticipant]

Hi, just noticed the following data which was missing for finding minima. Is it a bug?

variable
24.7532872
28.2944238
37.9540383
47.7081343
57.5452266
57.5977193
57.4906556
58.6317814
54.974159
51.4512819
44.4700131
36.5098709
28.2319718
32.6993526
36.8346633
45.89507
56.7836627
58.4028132
59.8051639
52.9366706
48.7806489
51.6733935
35.0669905
32.2116087
28.4154571
37.3944333
40.7178077
43.7580272

[dgteamModerator]

The Plot action column finds “local minima” and does not include the edges, since technically you don’t have data to show this truly is a local minima, (i.e., if you extended the data to the left would it increase just beyond the data you recorded?).  This was action was designed in particular for data where you want to examine periodicity, distance between peaks or valleys.  For that use case, you would not want to include an edge point.

Perhaps, we could add the option of including the edges if that would be useful; however, if you want the overall minimum, you can use a Number from column variable to find the minimum directly. Here we show the minimum using a Points column to indicate the location.

 

[petercreateParticipant]

Thank you for the reply. When the dataset is beginning in an increasing intent or decreasing, the edge points would be useful to be regarded as a local maximal or minimal.

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