How to change the plot title and file name when saving it to a for loop

Hello everyone

I have the following arrays of relevance to the question:

substrates=["MgO" "SiO2" "W"];
substrates_title=["MgO" "SiO$_2$" "W"];

which I want to be introduced in the title of a plot and in the name of the file that encapsulates the aforementioned plot in a for loop. For that, I have written preliminarily the following lines related to this:

t1=title(['Thermal background $T=\,$',num2str(Temperature(i)),' K, ',substrates_title(l),''],'FontSize',14,'interpreter','latex')
...
saveas(gcf,fullfile(outputdir,['Scaling_Based_Temperature_Dependent_Phase_Diagram_Thermal_Background_T=',num2str(Temperature(i)),'_K_with_Joule_Heating_',substrates(l),'_Substrate.pdf']))

but this does not work, exceptly the num2str(Temperature(i)) that works perfectly.

Any suggestion?

Answer 1

[the cyclist]

Part of the problem is that you are mixing character arrays and strings. The following works (after you set your own outputdir):

i = 1;
l = 1;
Temperature(i) = 273.15;

outputdir = 'SET ME TO WHAT YOU WANT!!';

substrates={'MgO' 'SiO2' 'W'};
substrates_title={'MgO' 'SiO$_2$' 'W'};

t1=title(['Thermal background $T=\,$',num2str(Temperature(i)),' K, ',substrates_title{l},''],'FontSize',14,'interpreter','latex')
fname = ['Scaling_Based_Temperature_Dependent_Phase_Diagram_Thermal_Background_T=',num2str(Temperature(i)),'_K_with_Joule_Heating_',substrates{l},'_Substrate.pdf'];

saveas(gcf,fullfile(outputdir,fname));

Note that I used a cell array of character arrays, rather than strings. One could probably have done the opposite.