Abstracting info out of the filename and updating it

[apecher]

Following a similar problem that was posted...

I have data , which consists of 3 columns related to 3 parameters H, T and E (Height, period and efficiency) and herewith, I would like to create a scatter diagram.

the name of every cell would carry the name of the H and T parameter and that 'cell' should contain different efficiencies...

So:
- I managed to create a name for all these cells e.g.: Cell_H_T
for h=1:10
for t=1:10
eval(['Cell_' num2str(h) '_' num2str(t) '=[0]']);
end
end

Now:
- how can I adress every matrix individually?
In the next example, the number '1' (appearing in t1min) should also change in between each loop.
e.g.: I analyse the data and if the data follows the requirements I would like to add that value into the cell_H_T... and also count the number of datapoints in there countCell_H_T
(this off course doesn't work)
for h=1:10
for t=1:10
for k = 1:length(H)
if (T(k)>=t1min & T(k)<=t8max) & (h1min<=H(k) & H(k)<=h10max)
Cell_ num2str(h) _ num2str(t) = [Cell_ num2str(h) _ num2str(t);E(k)]
countCell_ num2str(h) _ num2str(t) = countCell_ num2str(h) _ num2str(t) + 1;
end
end
end
end

Many thanks in advance for your help!

 

[NateD]

A possible solution is to use an array instead of individual cell names. You can use the following code to create a 3-dimensional array that stores the data for each combination of H and T:data = zeros(10,10); %create a 10x10 matrixcounts = zeros(10,10); %create a 10x10 matrix to store the countsfor h=1:10 for t=1:10 for k = 1:length(H) if (T(k)>=t1min & T(k)<=t8max) & (h1min<=H(k) & H(k)<=h10max) data(h,t) = [data(h,t);E(k)]; %add the new data to the existing data in the matrix counts(h,t) = counts(h,t) + 1; %increment the count in the corresponding entry end end endendOnce you have the arrays set up, you can then use the "scatter" command to create the desired scatter plot.

 

[oswaler]

I would first suggest that the author consider using more descriptive and specific variable names, rather than just "H," "T," and "E." This will make it easier to understand and troubleshoot the code in the future.

In terms of addressing each matrix individually, the author could use a cell array to store all the different matrices, with each cell corresponding to a specific combination of H and T parameters. Then, they could use indexing to access and manipulate each matrix within the cell array.

As for the issue with the loop and changing the number in t1min, I would suggest using a variable to store the value, rather than hardcoding it into the loop. This way, it can be easily changed as needed.

Overall, I would also recommend breaking down the problem into smaller, more manageable steps and testing each step separately before combining them into the final code. This will make it easier to troubleshoot and identify any errors. Additionally, commenting the code and providing clear explanations of the steps being taken can also be helpful for understanding and debugging.