# Mitch Lautigar

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**Content Feed**

Cannot get a non-singular matrix

Couple comments. Please see my added comments to the code f = @(x) log(exp(x) + 1) + 2 * sin(x); %I'd change "*" to ".*" since ...

6 months ago | 0

How can I dynamically create new structures out of existing ones?

Convert the structure to a table, combine the tables, then convert back to structure. Googling "struct2table" and "table2struct...

6 months ago | 0

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how to do a 2d plot

You need to use dot indexing since the values passed in will be in an array. Since this looks like a HW problem, I encourage you...

6 months ago | 0

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A (possibly compact) way to find (1) unique rows, when rows have switched elements, (2) rows with switched elements, and (3) indices of rows with switched elements

There isn't a compact way to do this. You will need to build a for loop for each of the conditions you are attempting to do. I'v...

6 months ago | 0

Find linear indices between two matrices

If A and B are the same size, and you are only attempting to find where the values of A is greater than B, use the following log...

6 months ago | 0

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Converting data contained in a cell array (4D-single) into .xls matrix for excel

You should be able to access the data inside of "erspdata" and store it elsewhere. an example of this would be "temp = erspdata(...

6 months ago | 1

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Nested functions in a class - Call the function without including the class name as filename.function

You can put subfunctions/nested functions below the Class call (after the end for classdef) and therefore have local functions f...

6 months ago | 0

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Question

Loading in Data from large files

Hello everyone, Going to try and explain what i'm trying to do below and I welcome any suggestions the community can provide. ...

7 months ago | 0 answers | 0

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answersExtend a cell array of dates (from days only, to hours and days) in a compact way

stack_array = [stack_array;cell(strjoin(cellstr(curr_date),'-',num2str(j)) )]; should be: stack_array = [stack_array; cell(strj...

7 months ago | 1

Can I control a labview executable with matlab?

MATLAB and LABVIEW are two very distinctly different programs. If you wanted to pass inputs/outputs, you could do that. But havi...

7 months ago | 0

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Delete duplicate values from string array

You need to use strcmpi() which will compare strings ignoring case and have it index through each spot of the array to compare t...

7 months ago | 0

Get value of a variable

When you call an edit text box, the user inputs some text which will then save. If it is a popup window you are using, you shoul...

7 months ago | 0

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Extend a cell array of dates (from days only, to hours and days) in a compact way

Use for loops. Here's an untested example of what I mean. stack_array = []; for i = 1:length(C) curr_date = C(i); for j ...

7 months ago | 1

How can I select all parts of a vector?

Remove the -1 from your for loop. for ci = 1:numel(bins)-1

7 months ago | 0

How to create table or matrix from these cell array in MATLAB?

Use a for loop, index through whichever variable you wish and grab each spot of data making sure to convert to double. This woul...

7 months ago | 0

Conversion to string from struct is not possible.

Couple ways to handle this. I'll explain the top 2. 1 - Pull the data out of the struct. num_data = x.data; str_data = x.tex...

7 months ago | 0

break from a nested for loop

https://www.mathworks.com/help/matlab/ref/continue.html Using Matlabs "continue" command should do what you need.

7 months ago | 0

Recognise specific pattern in timetable

After you grab the data, run a simple check to see if the rpm's drastically decrease. This can look something like the following...

7 months ago | 1

How do I decode encrypted data and plot it??

You have a couple different ways to do this. I've listed two below to try and help. Both ways I did it start with the following...

7 months ago | 0

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Minimization problem with integral constraint

My suggestion is to use a smaller step size for <a,b,c> if you know what they are. Typically when you are trying to fix the curv...

7 months ago | 1

Index in position 1 exceeds array bounds (must not exceed 3) For loop error

The issue you have is that your second for loop is looking in the same indices as your first for loop. Here's my suggestion: in...

7 months ago | 0

Removing specific lines from a .txt file.

As you read this in, you really just need to add in a conditional flag. Specifically, if a "hold" is seen, set a hold_flag to be...

7 months ago | 0

Check for a certain variable in a cell filled with different timetables

What you need to do is to index through every timetable. Since data is a structure, you can use fields command to get all of the...

7 months ago | 1

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GUI_BUILDING_BUTTONS-NOT_WORKING

Assuming you used guide, dragging a button over to the canvas should populate a button with basic controls. If it's not, then yo...

7 months ago | 0

I am trying to simulate a battery discharge test in which I am trying to control a relay switch that's connecting battery to the load using Flow chart

Error 1: "Error in port widths or dimensions. 'Output Port 1' of 'cell_unit_discharge/Chart/temp' is a one dimensional vector wi...

7 months ago | 1

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Operands to the || and && operators must be convertible to logical scalar values.

riskUserId=[]; %MATLAB is expecting a 1 or 0 for preexisting conditions. IF the values in the table are true/false, use strcmpi...

7 months ago | 0

Fast Fourier Transform function

Couple things i'd like to comment on to try and help you. Please see bullets below. You're original graph is setup correctly, b...

7 months ago | 1

Add phrase to string if condition is true

int i = 4; String[] testString = new String[i]; for (int j = 0; j < i; j++) { testString[j] = String.valueOf("test"+(j+1))...

7 months ago | 0

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How can i clear a row or all rows of UItable in AppDesigner?

https://www.mathworks.com/matlabcentral/answers/40789-is-there-a-way-to-delete-a-whole-row-in-a-uitable-by-clicking-a-delete-row...

7 months ago | 0

Plot Semilog/loglog data missing in plot

I believe the issue you are seeing is that you cannot take the log of a negative number. Since the majority of your data is nega...

8 months ago | 0