How to plot the 10th and 90th percentiles of the predictions?

Hi,

I have attached a data having a (size of a is 115 75) and want to plot the 10th and 90th percentiles of the predictions. How can I do it in MATLAB?

Thanks in advance

Answer 1

[Chunru]

load(websave("conf_int.mat", "https://www.mathworks.com/matlabcentral/answers/uploaded_files/1121675/conf_int.mat"))
whos

  Name          Size            Bytes  Class     Attributes

  a           115x75            69000  double              
  cmdout        1x33               66  char                

P = prctile(a, [10 90])  % for each column

P = 2×75

1.0e+03 * 2.8012 2.7044 2.6896 2.8840 2.9163 2.9280 3.0022 2.7951 3.0429 2.8610 2.5794 2.9548 2.9548 3.0255 2.7126 2.9686 3.3782 2.9847 2.7901 2.6866 2.6183 2.8473 2.9087 2.9370 2.7017 3.1828 3.0239 2.8233 2.9850 3.4413 4.9847 4.6246 4.9029 4.9502 4.7328 5.1725 4.9193 5.0113 4.6282 4.8393 4.7339 4.8020 4.8020 4.8341 4.7143 4.8533 4.3903 4.3102 4.7780 5.0160 4.7716 5.0939 5.0072 4.5404 5.0849 4.9131 4.5763 4.8793 4.5561 4.5912

Pall =  prctile(a, [10 90], "all")  % for all data

Pall = 2×1

1.0e+03 * 2.9320 4.8320

[Nisar Ahmed]

@Chunru Thanks, what if I want to compute the confidence interval (0.05 and 0.95). How I can do in case of above attached data?

I want to plot uncertainty represented by the area between the 10th percentile and the 90th percentile is given in gray. How can do it by using above percentile?

[Chunru]

I don't know how your data can be interpreted. Can you elaborate more?