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standart slicing not working on my vector

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fima v
fima v 2020-11-2
关闭： MATLAB Answer Bot 2021-8-20
Hello i Have the following code:
val=fscanf(ser);
var_hex=dec2hex(uint8(val))
y = reshape(var_hex.', 1, [])
which gives me size 1 12
when i try to do y(1:8) it gives me an Index exceeds matrix dimensions.
Why its not slicing such array?
  2 个评论
Stephen23
Stephen23 2020-11-2
Ran in:
val = [1,23,0,99,255,5];
var_hex=dec2hex(uint8(val));
y = reshape(var_hex.', 1, [])
y = '01170063FF05'
size(y)
ans = 1×2
1 12
y(1:8)
ans = '01170063'
fima v
fima v 2020-11-2
is there some other method? y(1,8) says it exceeds.
Its a callback function i cant see the variable as variable.

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