'Dimensions of arrays being concatenated are not consistent' when using isequal

[updated1, dist1] = googleMaps(map1, dir1);
[updated1_soln, dist1_soln] = googleMaps_soln(map1, dir1);
t10 = isequal([updated1, dist1], [updated1_soln, dist1_soln])

Where running t10 prints the error:

Error using horzcat
Dimensions of arrays being concatenated are not consistent.

Error in hw07 (line 107)
t10 = isequal([updated1, dist1], [updated1_soln, dist1_soln])

I am not trying to concatenate, why is it printing that?

I'll add the variables (as a disclaimer, they won't make much sense, I'm running this to compare answers for a hw assignment)

Running an == comparison gives:

>> dist1 == dist1_soln

ans =

  logical

   1

>> updated1 == updated1_soln

ans =

  5×5 logical array

   1   1   1   1   1
   1   1   1   1   1
   1   1   1   1   1
   1   1   1   1   1
   1   1   1   1   1

>> 

And the variables are:

updated1
val =


    '     '
    '     '
    'x##  '
    '  #  '
    '  o  '

updated1_soln

val =


    '     '
    '     '
    'x##  '
    '  #  '
    '  o  '

dist1 and dist1_soln are both 4 1x1 doubles. I don't understand why isequal is doing this though, I've used it for things like this often, without getting that error.

Answer 1

[the cyclist]

What sizes are updated1 and dist1 (and the other pair)?

[updated1, dist1]

is a horizontal concatenation.

[Julia Sequerth]

It is, but I've run something like:

[out3, deck3] = majorWar(firstPlayer3, secondPlayer3);
[out3_soln, deck3_soln] = majorWar_soln(firstPlayer3, secondPlayer3);
t6 = isequal([out3, deck3], [out3_soln, deck3_soln])

without the same problem, with the variables equaling:

out3:
'Player 1 wins!'
out3_soln:
'Player 1 wins!'
deck3:
11	6	8	4	13	9	10	3	12	7	5	2
deck_soln:
11	6	8	4	13	9	10	3	12	7	5	2

and the t6 output:

t6 =

  logical
  
1

That's the only reason I'm confused.

[the cyclist]

The syntax

[updated1, dist1]

inside of the isequal command is trying to concatenate a 5x5 logical array with a 4x1 double (before it checks with the other argument for equality). That will cause an error. That syntax for the isequal command is not comparing

updated1 == updated1_soln

and

dist1 == dist1_soln

"in parallel", as you seem to intend.

The reason that your other case works is that one can horizontally concatenate

'Player 1 wins!'

and

[11	6	8	4	13	9	10	3	12	7	5	2]

into a character vector.

Instead, you'll need to do something like

isequal(updated1, updated1_soln) && isequal(dist1, dist1_soln)

[Julia Sequerth]

I guess I've just been lucky that it concatenated until this point, I'll be sure to separate them in the future. Thank you!