Comparing user input and dataset to select appropiate value

I am writing a script which users can run to analyze their data. It involves a point where user input is required, because measurements have been made on different settings. I know how to ask for user input, but how can I compare the answer to my dataset and then select the appropiate value?

The relevant part of the script is:

    prompt = {'Gemeten bij pompstand:','Tijd bij steady state in seconden:'};
    dlg_title = 'Input';
    num_lines = 1;
    def = {'0.8','700'};
    answer = inputdlg(prompt,dlg_title,num_lines,def);

The dataset is as the following. answer(2,1) can just be a numeric value, I don't have a dataset for that one. Only answer(1,1) has to be compared and selected.

    0.2 450
    0.4 420
    0.8 380 
    1.0 350
    1.5 320

Thanks in advance,

Answer 1

[Hugo]

How about using find after conversion to numeric value of the answer?

ansnum=str2num(answer(1,1));

k=find(dataset==ansnum);

When dataset is the first column of the data that you show, k will give you the position where the user input matches the dataset.

Best regards,

Answer 2

[Robbert]

This worked, although I had to use str2double instead of str2num.