How to generate Data using for loop

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Med Future 2022-2-21

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https://ww2.mathworks.cn/matlabcentral/answers/1654665-how-to-generate-data-using-for-loop

编辑： Stephen23 2022-2-21

采纳的回答： Stephen23

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I have the following code, i am entering value manually

i want to do it using for loop how can i do that and save data in 1x1000 in mat file

prfDS = [200 500 800 1000 800 900];
n_pulsesDS = [120 400 1200 1500 600 350];
prfDS(1:120) = 200 
prfDS(121:520) = 500
prfDS(521:1720) = 800
prfDS(1721:3220) = 1000
prfDS(3220:3820) = 800
prfDS(3820:4720) = 900
scatter(1:length(prfDS),prfDS)

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Stephen23 2022-2-21

编辑：Stephen23 2022-2-21

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The last interval shown in your example indexing is inconsistent with the provided data:

cumsum([120,400,1200,1500,600,350])
ans = 1×6
         120         520        1720        3220        3820        4170

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Stephen23 2022-2-21

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https://ww2.mathworks.cn/matlabcentral/answers/1654665-how-to-generate-data-using-for-loop#answer_900880

编辑：Stephen23 2022-2-21

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The simple and efficient MATLAB approach would be to use REPELEM, for example:

val = [200,500,800,1000,800,900];
num = [120,400,1200,1500,600,350];
out = repelem(val,num)
out = 1×4170
   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200   200
numel(out)
ans = 4170