// This example uses the ee.List.iterate function to generate a series of// sequentially halved values.// Declare a list that will hold the series of sequentially halved values,// initialize it with the starting quantity.varquantityList=[1000];// Define the number of iterations as a list sequence.varnSteps=ee.List.sequence(1,10);// Declare a function that takes the current element of the iteration list and// the returned result of the previous iteration as inputs. In this case, the// the function is returning an accumulating list of quantities that are reduced// by half at each iteration.varhalfOfPrevious=function(currentElement,previousResult){varpreviousQuantity=ee.Number(ee.List(previousResult).get(-1));varcurrentQuantity=previousQuantity.divide(2);returnee.List(previousResult).add(currentQuantity);};// Apply the function to the nSteps list, each element is an iteration.quantityList=ee.List(nSteps.iterate(halfOfPrevious,quantityList));// Display the results. Note that step 0 is included for the initial value.print('Steps in the iteration of halved quantities',nSteps);print('Series of sequentially halved quantities',quantityList);print(ui.Chart.array.values({array:quantityList,axis:0,xLabels:ee.List([0]).cat(nSteps)}));

importmatplotlib.pyplotasplt# This example uses the ee.List.iterate function to generate a series of# sequentially halved values.# Declare a list that will hold the series of sequentially halved values,# initialize it with the starting quantity.quantity_list=[1000]# Define the number of iterations as a list sequence.n_steps=ee.List.sequence(1,10)# Declare a function that takes the current element of the iteration list and# the returned result of the previous iteration as inputs. In this case, the# the function is returning an accumulating list of quantities that are reduced# by half at each iteration.defhalf_of_previous(current_element,previous_result):previous_quantity=ee.Number(ee.List(previous_result).get(-1))current_quantity=previous_quantity.divide(2)returnee.List(previous_result).add(current_quantity)# Apply the function to the n_steps list, each element is an iteration.quantity_list=ee.List(n_steps.iterate(half_of_previous,quantity_list))# Display the results.display('Steps in the iteration of halved quantities',n_steps)display('Series of sequentially halved quantities',quantity_list)quantity_list_client=quantity_list.getInfo()plt.scatter(range(len(quantity_list_client)),quantity_list_client)plt.show()