MATLAB: Why am I getting Illegal use of reserved keyword “else”.

error: file: radar_new.m line: 193 column: 1 illegal use of reserved keyword "else".

Error: File: radar_new.m Line: 193 Column: 1

Illegal use of reserved keyword "else".

Best Answer

Including an ellipsis (three dots) in a line indicates to MATLAB that the command on that line continues to the next, but you left the rest of the command on the same line. If you intended to break the command across multiple lines you need to put the rest of the command on that next line. So trying to run a command like this won't work since the command doesn't actually end.

plot(1:10, ... 1:10)

You would need to write it like this:

plot(1:10, ...
    1:10)

Yes, I know this command is short enough that you could write it all on one line, but I'm just using this as a simple example.

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MATLAB: Am I getting error asIllegal use of reserved keyword ”end”

Probably because you have an end without a starting if. Even ignoring that line 1 and 4 should be a comment, I'm afraid to say your file is a complete mess. There's no indenting and you multiple statements on the same line, including if statements starting at the end of a list of statements.

Matlab smart indenting can't cope with that mess and even mlint give up with the message (on line 1): Code analysis did not complete. File contains too many syntax errors. And indeed if you look further down the problematic end it gets worse and worse, there's plenty of invalid statements.

I don't know where you've got this file but it's going to require a lot of work to fix. To start with, make sure there's only one statement per line (i.e. start a new line after each ;) and then make sure to use proper indentation.

After that, you'll have to figure out how to fix the mismatched end, the ... continuation that don't actually continue into something valid, the variable declarations in the middle of array constructions, etc.

Every single red line on the right of the editor is a syntax error that requires fixing. Orange lines are warning and probably an indication of a problem as well. You have lots of problems. See all these red lines (and more!)

MATLAB: Goto command in matlab

There's no goto in matlab, and there is no need to. You could just as well code your algorithm as:

%... step 1 to 29
condition = false;
while ~condition
  %... step 30 to 60
  condition = sometest
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%... step 61 to 80

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