Syntax error in matlab with parentheses - matlab

xlabel('\theta (degrees)'), ylabel('\rho');
I keep getting the following error with this line.
Error: File: hough_transform_example.m Line: 8 Column: 43
Expression or statement is incorrect--possibly unbalanced (, {, or [.
I'm not quite sure why though I do have the correct number of brackets I believe. What else could be causing the error?

Related

postgresql 11 ERROR: syntax error at or near "`"

I installed Mimic3 database in Pg11, and try to query using the code from here: https://mimic.physionet.org/tutorials/intro-to-mimic-iii-bq/ solution to step 1.
SELECT ie.subject_id, ie.hadm_id, ie.icustay_id,
ie.intime, ie.outtime
FROM `physionet-data.mimiciii_clinical.icustays` ie;
but I got the error.
ERROR: syntax error at or near "`"
LINE 3: FROM `physionet-data.mimiciii_clinical.icustays` ie
^
, Time: 0.004000s
And if I deleted those two backticks, I got the warning.
ERROR: syntax error at or near "-"
LINE 3: FROM physionet-data.mimiciii_clinical.icustays ie
^
, Time: 0.002000s
And if I explaced ` with ", it showed the error that:
ERROR: relation "physionet-data.mimiciii_clinical.icustays" does not exist
LINE 3: FROM "physionet-data.mimiciii_clinical.icustays" ie
^
, Time: 0.002000s
Hope somebody can tell me what was wrong. Thank you!
Postgres doesn't use backticks to quote table names, it uses double quotes, and dots aren't allowed in names without quoting, so you probably want this:
SELECT ie.subject_id, ie.hadm_id, ie.icustay_id,
ie.intime, ie.outtime
FROM "physionet-data.mimiciii_clinical.icustays" ie;

Minizinc unexpected syntax error

What does the following error mean(and I don't even have line no.83 either in .mzn or .dzn:
Error: invalid integer literal in line no. 83
Error: syntax error, unexpected ':', expecting FZ_INT_LIT in line no. 83
Is it because the numbers in my arrays are too large for the solver to handle?

How to catch syntax errors?

If I run the following foo.m file with run('foo.m'):
try
disp(r3)
catch ME
disp('Exception handling.')
end
I correctly get:
Exception handling.
However if I replace disp(r3) by disp('foo' 1) then I get:
Error: File: C:\Users\Pedro\Desktop\foo.m Line: 23 Column: 16
Unexpected MATLAB expression.
Error in run (line 96)
evalin('caller', [script ';']);
Why am I not catching this error with catch ME? How can I catch it?
Having a syntax error in your file, not a single line of code is broken, the full file is broken because it can not be parsed. Matlab will refuse to "understand" any code you write in your foo.m, including your try/catch. You have to write your try/catch into another function which calls the foo.m
try
foo()
catch ME
disp('Exception handling.')
end
As the matlab interpreter will highlight all syntax errors to you without running the code, you typically don't need to check for syntax errors on runtime.

Drools Error- ERR 102 Line 9:143 mismatched input '==' in rule

I am trying to configure a Decision table to evaluate certain condition.
Below is the snippet from my decision table.
While doing so I am getting following error
[ERR 102] Line 8:143 mismatched input '==' in rule "Rules_11".
I am not sure about what I am doing wrong.
The problem is in line 9
The condition cannot have a variable with a comparison floating there.
$selectedAttribute.code in line 9 doesn't mean anything, that's not a Conditional element.

bareword found where operator expected

I am new to perl, and I am fiddiling around. I found this code online.
Here is the snippet of code:
82 process_input(q,[]).
83 process_input(n,Task) :- toptask(Task), set_new_threshold.
84 process_input(s,Task) :- suggest_task(T),
85 apply(addtoagenda,T),toptask(Task).
86 process_input(x,Task) :- print('not yet implemented'),nl,toptask(Task).
87 process_input(i,Task) :- user_task,toptask(Task).
And I am getting this error: Bareword found where operator expected near "process_input(n, Task" line 83.
Might be a runaway multi-line ,, string starting on line 82.
A 'Bareword' error is caused by a syntax error in your code. A 'runaway multi-line' usually pinpoints where the start of the error is, and usually means that a line has not been completed, often because of mismatched brackets or quote marks.
As has been pointed out by several SO-ers, that doesn't look like Perl! The Perl interpreter is balking on a syntax error because it doesn't speak that particular language!