Create a function and plot data

Question

MattC 2023-2-28

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https://ww2.mathworks.cn/matlabcentral/answers/1920755-create-a-function-and-plot-data

移动：Voss 2023-3-5

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Hi All, here is what I am trying to achive:

A function which takes the input as 2 folder names and then there are .mat files for each day inside of second folder

Example: Function (Main_Folder,Sub_Folder,Day1)

.mat files are for a day each so for this function what I am trying to do is to pick a new file that comes into the folder. Example: Once the data for Day1, Day2 is taken already and today comes a new file Day3 it needs to be picked by the function not Day1 and Day2 again
.mat files are a nested 1x1 struct like this

Day1.Name1.Table1 = array2table(rand(7,5));
Day1.Name1.Table2 = array2table(rand(7,5));
Day1.Name1.Table3 = array2table(rand(7,5));

3. Inside of these Tables: 1,2,3. To access the Tables I use this code

C = struct2cell(S);
T = [C{:}]
T1 = vertcat(T.Table1)
T2 = vertcat(T.Table2)
T3 = vertcat(T.Table3)

4. Then I do a comparison for one of the variable from each of these tables and get the details in a different table

Name1_T1 = T1(strcmp(T1.Var1, 'A'), :);
Name1_T2 = T2(strcmp(T2.Var1, 'A'), :);
Name1_T3 = T3(strcmp(T3.Var1, 'A'), :);

5. Then I get a value for variable2. For this variable I would like to append the value for each day's file which I haven't figured out yet. So, let's say Variable2 had value of 40 for day1, then 50 for day2 and 60 for day3 and so on

Name1_T1_Var2 = Name1_T1.Var2;
Name1_T1_Time = Name1_T1.Time;

6. Finally, I am trying for this function to build like a trent plot which will have value for each day

plot (Name1_T1_Time,Name1_T1_Var2)

7. So, basically I am trying to build a function that takes these inputs and dynamically pick each file that comes every day in the folder and then plot the data for Variable 2 (One point for each day - plot should still have previous day's value but also able to append new day's value)

Here is what I am not able to figure out: