Can't use image classification with my subset. All choices in the dropdown menu are grayed out.
you seem to be listing the non-selectable layer? does anything change when you select something else.
No, nothing changes. It is calling everything I have in this file "not selectable", including he Landsat image files I loaded, the composite from those image files and the subset from the composite are all "not selectable". If I select the composite, still nothing changes:
Customize, Extensions... is the Spatial Analyst toggled on?
No, I don't see any indication that Spatial Analyst is on...no check marks under Customize: Extensions or Toolboxes.
I just added an image, showing that the classification methods are available only when the Spatial Analyst is toggled on
Oh! Yes, a couple of assignments ago the Prof said to turn on Spatial Analyst!! Didn't think that still applied. Turned it on and: Wa La! Great! Thank you, thank you!
Retrieving data ...