I need to create a matriz since two different?

Hi i'm trying to build a matrix with the following data:

disp(C)
    9.9176    3.4750
   20.6735  936.0956
   15.3217  592.1325
   11.8539  128.6507
   12.1579  430.5301
   13.2333  267.0387
   16.3886  762.0092

and the frecuency of every row

disp(V)
        5191           1
         575           1
         455           1
         849           1
         665           1
         618           1
         407           1

But when i do the following,

a=[V; C];
disp(a)
 5.1910    0.0010
    0.5750    0.0010
    0.4550    0.0010
    0.8490    0.0010
    0.6650    0.0010
    0.6180    0.0010
    0.4070    0.0010
    0.0099    0.0035
    0.0207    0.9361
    0.0153    0.5921
    0.0119    0.1287
    0.0122    0.4305
    0.0132    0.2670
    0.0164    0.7620

This is wrong, because i expect a 3 by 7 matriz. What do i need to do?

Answer 1

[Massimo Zanetti]

Try

a=[V, C];

[Tony Castillo]

I still have wrong values

 5.1930    0.0010    0.0099    0.0035
    0.4520    0.0010    0.0156    0.6014
    0.8550    0.0010    0.0119    0.1295
    0.5700    0.0010    0.0207    0.9368
    0.6720    0.0010    0.0121    0.4363
    0.6300    0.0010    0.0133    0.2706
    0.3880    0.0010    0.0164    0.7682

Answer 2

[Guillaume]

I assume you mean a 7 (rows) by 3 (columns) matrix, although I have no idea why just 3 and not 4 columns.

The semicolon ; concatenates vertically, so matlab has done exactly what you asked. If you want to concatenate horizontally, use a comma , or a space.

a = [V, C];  %or [V C], I recommend using a comma

I also recommend you go through the getting started tutorial

Answer 3

[Marc Jakobi]

I assume you want:

a = [V(:,1), C];

[Tony Castillo]

No Marc, i want the real values, now appears wrong values.

 0.4070    0.0164    0.7620
    5.1910    0.0099    0.0035
    0.5750    0.0207    0.9361
    0.6650    0.0122    0.4305
    0.8490    0.0119    0.1287
    0.6180    0.0132    0.2670
    0.4550    0.0153    0.5921

[Marc Jakobi]

If you look closely, it says:

1.0e+03 *

      5.1910    0.0099    0.0035
      0.5750    0.0207    0.9361
      0.4550    0.0153    0.5921
      0.8490    0.0119    0.1287
      0.6650    0.0122    0.4305
      0.6180    0.0132    0.2670
      0.4070    0.0164    0.7620

So each value is multiplied by 1000. Try typing in

a = [V(:,1), C];
disp(num2str(a))

5191         9.9176          3.475
 575        20.6735       936.0956
 455        15.3217       592.1325
 849        11.8539       128.6507
 665        12.1579       430.5301
 618        13.2333       267.0387
 407        16.3886       762.0092

[Guillaume]

or better change your displayed format, e.g:

format shortg

As I said in my answer, you really need to go through getting started tutorial. All of this is really really basic matlab.

[Steven Lord]

Or instead of using num2str, change the display format as described in the responses to this other Answer post from Tony.