Answered

sum every 24 rows in a vector

I am not sure what all the code you posted has to do with anything ... If I have a 8760x1 array x = randn(8760, 1); I...

sum every 24 rows in a vector

I am not sure what all the code you posted has to do with anything ... If I have a 8760x1 array x = randn(8760, 1); I...

8 years ago | 2

Answered

insert element in vector

While I think this is a homework problem ... Function handles and cat are your friends insert = @(a, x, n)cat(2, x(1:n)...

insert element in vector

While I think this is a homework problem ... Function handles and cat are your friends insert = @(a, x, n)cat(2, x(1:n)...

8 years ago | 10

Answered

delete element from vector

I can think of three ways that are all slightly different a=[1,2,3,4,5]; If you want to get rid of all cases where |a| i...

delete element from vector

I can think of three ways that are all slightly different a=[1,2,3,4,5]; If you want to get rid of all cases where |a| i...

8 years ago | 60

| accepted

Answered

What is the variable 'self' in MATLAB class?

There is nothing special about the variable "self". In MATLAB many people use "obj" instead. There is something special about th...

What is the variable 'self' in MATLAB class?

There is nothing special about the variable "self". In MATLAB many people use "obj" instead. There is something special about th...

8 years ago | 1

Answered

MATLAB's JIT Engine

I am not sure it is possible to separate the MATLAB JIT accelerator from the rest of MATLAB. MATLAB is fast enough for most of w...

MATLAB's JIT Engine

I am not sure it is possible to separate the MATLAB JIT accelerator from the rest of MATLAB. MATLAB is fast enough for most of w...

8 years ago | 0

Answered

retrieve mat-file version

You can use evalc to capture the output of type function tf = getmatv(fname) x = evalc(['type(''', fname, ''')']); ...

retrieve mat-file version

You can use evalc to capture the output of type function tf = getmatv(fname) x = evalc(['type(''', fname, ''')']); ...

8 years ago | 1

| accepted

Answered

Is there something like a 'struct pointer' in Matlab?

I disagree with Walter and think MATLAB does provide this functionality in the OO HANDLE superclass. You can create a handle str...

Is there something like a 'struct pointer' in Matlab?

I disagree with Walter and think MATLAB does provide this functionality in the OO HANDLE superclass. You can create a handle str...

8 years ago | 2

| accepted

Answered

regexprep with multiple expression

Is this what you want? ttxt = 'hello parish world borough foo census area bar'; regexprep(ttxt, ' parish| borough| censu...

regexprep with multiple expression

Is this what you want? ttxt = 'hello parish world borough foo census area bar'; regexprep(ttxt, ' parish| borough| censu...

8 years ago | 1

Answered

Code in script is printing to command window

I can think of three ways of doing this. * Set break points to narrow down where the output occurs. This could involve a lot...

Code in script is printing to command window

I can think of three ways of doing this. * Set break points to narrow down where the output occurs. This could involve a lot...

8 years ago | 5

Answered

How do I count the number of NaNs in a Vector?

This is a straight forward question and given you haven't shown any attempt to solve it, I am hesitant to provide an answer ... ...

How do I count the number of NaNs in a Vector?

This is a straight forward question and given you haven't shown any attempt to solve it, I am hesitant to provide an answer ... ...

8 years ago | 7

| accepted

Answered

Question about 'lognrnd' function

Why not just test it: R = lognrnd(0, 8, 1e6, 1); std(R) ans = 1.8915e+13 std(log(R)) ans = 7.9976

Question about 'lognrnd' function

Why not just test it: R = lognrnd(0, 8, 1e6, 1); std(R) ans = 1.8915e+13 std(log(R)) ans = 7.9976

8 years ago | 1

Answered

What frustrates you about MATLAB?

The number of MATLAB users using old versions who cannot cope with code written for new versions frustrates me. It would be easi...

What frustrates you about MATLAB?

The number of MATLAB users using old versions who cannot cope with code written for new versions frustrates me. It would be easi...

8 years ago | 0

Answered

How is the MarkerSize of a 'Circle' marker defined

The circle marker size appears to be the number of points in the diameter. For the other markers, it is not so clear. You can cr...

How is the MarkerSize of a 'Circle' marker defined

The circle marker size appears to be the number of points in the diameter. For the other markers, it is not so clear. You can cr...

8 years ago | 2

| accepted

Answered

Check if filename is valid.

A long time ago, probably Windows 95 on a FAT16 harddisk, I started using the following: regexp(fname, ['^(?!^(PRN|AUX|CLOC...

Check if filename is valid.

A long time ago, probably Windows 95 on a FAT16 harddisk, I started using the following: regexp(fname, ['^(?!^(PRN|AUX|CLOC...

8 years ago | 3

Question

When to accept an answer for someone

TMW has now given many of us the power to accept answers for other people, but haven't provided any guidance as to when we shoul...

8 years ago | 7 answers | 8

Question

MESSAGE function and error handling

I just stumbled across the MESSAGE function which takes a message identifier of the form foo:bar:id and creates an objec...

8 years ago | 2 answers | 2

Answered

subclassing MException

There are a lot of places you can go wrong, and without the code, it is hard to guess... classdef testclass < MException ...

subclassing MException

There are a lot of places you can go wrong, and without the code, it is hard to guess... classdef testclass < MException ...

8 years ago | 1

Question

MATLAB Stack Exchange

What do people think of the <http://area51.stackexchange.com/proposals/38040/matlab#_=_ MATLAB Stack Exchange> proposal?

8 years ago | 1 answer | 3

Answered

command in Matlab equivalent to "forall " in fortran

The JIT accelerator that was introduced 10 years ago has sped up loops substantially, it is an unfortunate myth that MATLAB loop...

command in Matlab equivalent to "forall " in fortran

The JIT accelerator that was introduced 10 years ago has sped up loops substantially, it is an unfortunate myth that MATLAB loop...

8 years ago | 1

| accepted

Answered

Scheduling a Matlab Script

You need to enclose the entire command in quotes. You do not need the path on the function/script you want to run and do not wan...

Scheduling a Matlab Script

You need to enclose the entire command in quotes. You do not need the path on the function/script you want to run and do not wan...

8 years ago | 1

| accepted

Answered

What is the reasoning behind the fact that min(0,NaN) is 0?

Given the behavior of MIN, I find it odd that there is a NANMIN function.

What is the reasoning behind the fact that min(0,NaN) is 0?

Given the behavior of MIN, I find it odd that there is a NANMIN function.

8 years ago | 2

Answered

What is it that I get from MATLAB function probplot?

Basically, if your data came from the chosen distribution (exponential/Weibull) then the blue data points would overlap the dash...

What is it that I get from MATLAB function probplot?

Basically, if your data came from the chosen distribution (exponential/Weibull) then the blue data points would overlap the dash...

8 years ago | 1

Answered

Getting first element of a function output

See this <http://www.mathworks.com/matlabcentral/answers/1325-what-is-missing-from-matlab#answer_1931 answer> about what is miss...

Getting first element of a function output

See this <http://www.mathworks.com/matlabcentral/answers/1325-what-is-missing-from-matlab#answer_1931 answer> about what is miss...

8 years ago | 2

Answered

Pause function in matlab for 1 millisecond

Getting millisecond timing accuracy is extremely difficult in most programming languages since the underlying clocks are just no...

Pause function in matlab for 1 millisecond

Getting millisecond timing accuracy is extremely difficult in most programming languages since the underlying clocks are just no...

8 years ago | 4

Answered

Ensure x label never cut off

A "manual" method of fixing cutoff labels by making the axis smaller is relatively easy to implement. You pick a scale value tha...

Ensure x label never cut off

A "manual" method of fixing cutoff labels by making the axis smaller is relatively easy to implement. You pick a scale value tha...

8 years ago | 1

| accepted

Question

Query event queue

Is it possible to query the event queue (i.e., where callbacks wait for drawnow)? I have a for loop that takes a ~10 seconds ...

8 years ago | 1 answer | 1

Answered

Calculation speed

Why not just use bench? doc bench Your lack of preallocation is probably distorting your results for your university des...

Calculation speed

Why not just use bench? doc bench Your lack of preallocation is probably distorting your results for your university des...

8 years ago | 3

Answered

continue for-loop despite matlab error

You could do something like for ii = 1:n try % your code catch ME warning('Something happened'); ...

continue for-loop despite matlab error

You could do something like for ii = 1:n try % your code catch ME warning('Something happened'); ...

8 years ago | 4

| accepted

Answered

What is missing from MATLAB?

I wish there were better functions for comparing performance across platforms and versions. Something like a stable bench on ste...

What is missing from MATLAB?

I wish there were better functions for comparing performance across platforms and versions. Something like a stable bench on ste...

8 years ago | 2

Answered

What is missing from MATLAB?

A function to check if a string clashes with an official MATLAB function. Something like Jan's UniqueFuncNames, but with support...

What is missing from MATLAB?

A function to check if a string clashes with an official MATLAB function. Something like Jan's UniqueFuncNames, but with support...

8 years ago | 6