How to use a for loop to iterate through a table?

Hi! I am very new to programming and I am trying to understand how to loop through a table. "indextable" is the table I am trying to loop through, and the values of indextable are the indices of cellnames. Hence I want 'i' to represent the values in indextable, rather than the indices. However, when I try the code below, rather than getting the appropriate values ex. (6, 9, 14), I get all the numbers from 6 to 14. How can I fix this? Thank you and I'm sorry if this is a simple question!

%%Make a polar plot
for column = 1:width(indextable) %columns in table
    for i = indextable{1,column}:indextable{end,column};
        cellname = cellnames{i}; %create looping variable
        figure %create a new figure for each one
        [firingRate,plottingangles]=Calculate_Firing_Rate(spiketimes(cellname),angleData); %FR function
        polarplot(deg2rad(plottingangles),firingRate); %convert to radians
        title(cellname);   
    end
end

Answer 1

[dpb]

Not sure I follow what you're after eggsactly but I'll take a fryer...

for i = indextable{1,column}:indextable{end,column};

for column=1 the first loop reduces to

for i = indextable{1,1}:indextable{end,1}

which is just

for i = indextable(1):indextable(end)

and since ':' means indextable(1):1:indextable(end) you do indeed get all elements from the first to the last.

What you're looking for instead is less complicated--again assuming your index array is just a vector of values and not a 2D array for some reason unspecified in what your overall objective is, then

id=[6 9 14];  % create the list; note it's just a vector, not a cell array
for i=1:length(idx)
  ...
  reference the ith column-variable here in the table

end

It's not clear just what are the other elements in the call to your compute-engine function; seeing the result of

indextable.Properties.VariableNames

would give us the data for what is in the table and you could 'splain what is needed to compute what it is you're after and then what to plot...

[Natalie St. John]

Eggcellent! Thank you so much!!