Retrieving Data from User using data tables in Matlab?

I am currently trying to ask a user to select a specific data from a table of values including named variable columns. I have to ask the user to input a desired number, each associated with a gas name. The data I have has 7 gas names in column one, properties of pressure in column two for each gas, properties of temperature for each gas in column 3 ect. I am having trouble asking the user to select a specific gas from my table, I have tried assigning the gas names to the row and column that it appears in my table and then providing a list of numbers to be associated with each gas but it is not working.

A second problem that I have is to do with the associated data of pressure for the specific gas, I have so that P=('input',column number) where the input is the number chosen by the user, associated with the gas from the list of numbers I have provided. i.e; He=1.., He=(1,1);.

Thank you for your help!

[dpb]

Show us what you've done and where, specifically, you have a problem and a sample of the data.

By "table" do you mean a MATLAB table or just a generic description...we need precise definitions of what you're working with.

[Karina Coman]

Of course, I apologise.

[Karina Coman]

Namely, I need to use the specific VC, PC ect. for each gas.

Answer 1

[dpb]

gasesab.Gases=categorical(gasesab.Gases);       % turn into categorical variable
inGas=listdlg('ListString',gasesab.Gases, ...
               'Name','GAS PROPERTIES','PromptString', ...
               'Select Desired Gas', ...
               'SelectionMode','single', ...
               'ListSize',[150 150]);
inProp=listdlg('ListString',gasesab.Properties.VariableNames(2:end), ...
               'Name','GAS PROPERTIES','PromptString', ...
               'Select Desired Properties', ...
               'SelectionMode','multiple', ...
               'ListSize',[150 150]);
inProp=inProp+1;
properties=gasesab(inGas,inProp);               % table of desired properties for specific gas

Use

properties=gasesab{inGas,inProp};               % array of desired properties for specific gas

NB: the curlies "{}" to return as an array of properties. There, of course, you have to keep track of which elements of the array are which property so the table may be simpler.