Extracting values from a string - Matlab

I am trying to take the values from the string "ind" following this logic:

ind = "i 1 1";

comp4 = strcmp(ind(1),"i")

if(comp4)
    row = str2double(ind(3))
    col = str2double(ind(5))
end

And for example the cond4 condition isn't validated, hence that's why I am asking why can't I take the values visualized of row and col.Thank you

Answer 1

[Fangjun Jiang]

You got string array (" ") and char array( ' ') mixed. See which data format fits you better.

ind = "i 1 1"

ind = "i 1 1"

ind(1)

ans = "i 1 1"

ind2=char(ind)

ind2 = 'i 1 1'

ind2(1)

ans = 'i'

[Caio Lorenzo Iriarte Salles]

Thank you!! I appreciate it

[Fangjun Jiang]

Or split() it first

ind = "i 1 1";
split(ind," ")

ans = 3×1 string array
    "i"
    "1"
    "1"

[Steven Lord]

Or use extractBetween.

ind = "i 1 1";
row = extractBetween(ind, 3, 3)

row = "1"

rowDouble = double(row)

rowDouble = 1

col = extractBetween(ind, 5, 5)

col = "1"

colDouble = double(col)

colDouble = 1