How do we declare multiple variables at once using letters and values of two columns of a table?

Question

Emerson De Souza 2012-11-22

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/54456-how-do-we-declare-multiple-variables-at-once-using-letters-and-values-of-two-columns-of-a-table

INTRODUCTION: Hi, I have an alpha-numeric text file. The first column contains the alpha and the second column the numeric content. An example is given below:

% test=
% a  2
% b  30
% c  45
% d  13
% e  50

I import the file as follow

fid =fopen('C:\Users\EMERSON\Desktop\test.txt');
A=textscan(fid,'%s %f');
fclose(fid);
A1=A{1,1};
A2=A{1,2};

GOAL:

i) I want to write a command that create variables using the alpha characters of the first column and the corresponding value of the second column. In this way, I would type a and enter and would obtain the result 2, or type d to obtain the result 13, and so on.

ii) Conversely, later I import an array only with numeric values I would like to substitute the values by the letters assigned above.

I wounder if someone could suggest me a command to do these things

Thanks in advance for you help

Emerson