# Victoria Helm

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**Content Feed**

Question

What is a symbolic expression (syms) and how do I use this when doing differentiation in matlab?

Hi I have some data with voltage spike recordings that I need to count. I want to use the diff() function to count the number of...

5 months ago | 2 answers | 0

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answersQuestion

How to do interpolation with interp1 and does this relate to binning?

Hi I have some data collected from track runners who ran around a 400 meter track multiple times for multiple training days. Man...

5 months ago | 1 answer | 0

### 1

answerQuestion

How to compute the standard deviation of each column in a matrix?

I have some code that creates a matrix of data points and then computes the average value for each column and plots these averag...

5 months ago | 2 answers | 0

### 2

answersQuestion

How to add entries to a growing matrix in matlab?

In short, I want to loop through some folders and access data from files within these folders. As I do this, I need to add singl...

5 months ago | 2 answers | 0

### 2

answersQuestion

How to understand a datenum date?

I'm trying to write some code that loops through files that are distinguished by date and I want to use the serial dates generat...

5 months ago | 1 answer | 0

### 1

answerQuestion

How to generate a random number between 0 and 180

Will the following code work to generate a random integer between 0 and 180? length = 180; random_location = randi([0 length],...

7 months ago | 2 answers | 0

### 2

answersQuestion

How do I create a table that I don't now the size of ahead of time?

I'd like to creat a table for which I know the number of columns/variable names. However, I don't know how big (how many rows) i...

1 year ago | 1 answer | 0

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answerQuestion

How do I load a file from my desktop to my workspace?

I'd like to, well load a file from my desktop to my workspace. Is there an ideal way to do this?

1 year ago | 2 answers | 0

### 2

answersQuestion

Why am I receiving this error when using the vartestn function?

I tried the following code and received this error: >> vartestn(Table.trialNum,Table.Sex,Table.ID,'TestType','LeveneQuadratic'...

1 year ago | 1 answer | 0

### 1

answerQuestion

What does 'regstats' mean in this example?

[b, dev, regstats] = glmfit(...) Is regstats a function or something else? I'm not sure what it does here, exactly.

1 year ago | 0 answers | 0

### 0

answersQuestion

What does the varargin function do and what does varargin{:} mean?

For example: [varargin{:}] = convertStringsToChars(varargin{:});

1 year ago | 2 answers | 0

### 2

answersQuestion

How do I insert a placeholder in a plot where I don't have data?

I'm making a plot from two columns/variables in my data table where one of the variables is the day that the data was collected ...

1 year ago | 1 answer | 0

### 1

answerQuestion

What does '* *' mean in matlab?

For example: D = dir(fullfile(logfilepath,'**','*.log'))

1 year ago | 1 answer | 0

### 1

answerQuestion

How do I prevent MATLAB from converting a number into scientific notation?

I am trying to make a plot from two columns in a data table on Matlab. However, Matlab converts some of my values in the data ta...

1 year ago | 1 answer | 0

### 1

answerQuestion

How do I make a plot from a data table?

I made a data table in matlab containing numerical and categorical data (number of trials and date for example). How do I make a...

1 year ago | 1 answer | 0

### 1

answerQuestion

Can someone better explain what the fullfile function does on Matlab (the mathworks explanation didn't help me)?

I read the explanation on mathworks (below), but still do not understand what the fullfile function does. Can someone explain is...

1 year ago | 2 answers | 0

### 2

answersQuestion

How do I save my MATLAB work and notes onto a PDF file or Google Doc?

I am currently learning MATLAB using online tutorials through YouTube and Coursera. As I watch these tutorials, I follow along i...

1 year ago | 1 answer | 0

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answerQuestion

How do I Create a function named “evennum” that returns 2 if its argument is even, and 1 if its argument is odd, using either the built in mod or floor functions on MATLAB?

I am totally new to MATLAB and am unsure of how to tackle this problem. Any suggestions?

1 year ago | 0 answers | 0