Let P_1 be a given pixel and P_2 another pixel in your ImageCollection (IC) over a time period. Then, your imageCollection would be consist of several snapshots from each pixel like so: TS_1 = [P11, P12, ..., P1N] and TS_2 = [P21, P22, ..., P2M]. In the IC they might be present like IM = [P11, P21, P2N, P22, P2M]. i.e. the order of the images in the IC might be totally random in time and space (pixels). How do you know your code is being applied to each pixel separately?

Here is the asset. code.earthengine.google.com/?asset=users/hnoorazar/… I think any shapefile that includes an area would work. I cleaned up some code and made it 200 lines. Just in case the old link to the code is not updated here it is again: code.earthengine.google.com/bff236f76a14eba924d0ed8fcf670619

well, your solution does not work on my example: here is the code code.earthengine.google.com/2508dd54ab0bf6c5e870d2d17a654cbb

is there any good resource for learning about EE and JS? Other than basics that are on Developers page of Google...

why the EVI band is selected above if we are looking at NDVI? and why when EVI is taken out we get the error List (Error) Input array has length 3 on axis 0, but 4 labels provided. earth engine?

Each of these images correspond to a pixel, it is already just one value. It is not a region. So, reduceRegion does not work (It seems). I had tried that one to trick it (currently, line 79): code.earthengine.google.com/1d26adfb351c75380e98a9eace9ffaee

Do you know the answer to this one? this should have been my question in the first place. gis.stackexchange.com/questions/362165/… The code for it is code.earthengine.google.com/?https://…

I want an ee.List or vector if you will, that is like L = [sum_1, sum_2, sum_3, ...] where sum_i is the only band value in the image_i in the ImageCollection. You can assume I have only one image with only one band called sum. How can I get the value of sum in the image? Then I can use map for all images in the ImageCollection Thanks