Cris LaPierre
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MathWorks
1,073 total contributions since 2018Cris LaPierre's Badges
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Awarded to Cris LaPierre on 21 Sep 2018
Answered
Splitting up Numerical Text Data
t = ' 89 93 96 99100100100 98 96 94 90'; T = textscan(t,'%3s','Whitespace',''); T = str2double(T{:})
Splitting up Numerical Text Data
t = ' 89 93 96 99100100100 98 96 94 90'; T = textscan(t,'%3s','Whitespace',''); T = str2double(T{:})
7 hours ago | 0
Answered
why i can't not get my '' License Number or Activation Key ''
If you need a license or activation key, you will need to contact the department at your University that manages software. Typi...
why i can't not get my '' License Number or Activation Key ''
If you need a license or activation key, you will need to contact the department at your University that manages software. Typi...
13 hours ago | 0
Answered
How to form a structure array variable?
See Steven Lord's reply here. Basically, something like this: Test{1}.a = [1; 2; 3]; Test{1}.b = [7; 3; 22]; Test{1}.c = [4; ...
How to form a structure array variable?
See Steven Lord's reply here. Basically, something like this: Test{1}.a = [1; 2; 3]; Test{1}.b = [7; 3; 22]; Test{1}.c = [4; ...
14 hours ago | 0
| accepted
Answered
Am I seeing a bug In LiveScript Output?
When I run your code in my computer, the resulting figure looks the same in a live script and the command window. I can also run...
Am I seeing a bug In LiveScript Output?
When I run your code in my computer, the resulting figure looks the same in a live script and the command window. I can also run...
17 hours ago | 1
| accepted
Answered
How to extract columns number 1 and 3 from a matrix with 3 columns, to form a new matrix with 2 columns, without selecting columns number 2
Chapter 5 of MATLAB Onramp.
How to extract columns number 1 and 3 from a matrix with 3 columns, to form a new matrix with 2 columns, without selecting columns number 2
Chapter 5 of MATLAB Onramp.
20 hours ago | 0
Answered
fplot is not working
You are close. The error in line 3 is because f(x) is not the function name. Check in your workspace and you'll see that f is. ...
fplot is not working
You are close. The error in line 3 is because f(x) is not the function name. Check in your workspace and you'll see that f is. ...
1 day ago | 0
Answered
drawing complex equation in 2D
You've already done all the hard work. Just define w first, and then use elementwise multiplication and division. You can use ab...
drawing complex equation in 2D
You've already done all the hard work. Just define w first, and then use elementwise multiplication and division. You can use ab...
1 day ago | 0
Answered
Manually adjust labels on axis of plot (histogram)
You could change the X labels using the xticklabels function. I'll include a simple example of one way you could achieve this. ...
Manually adjust labels on axis of plot (histogram)
You could change the X labels using the xticklabels function. I'll include a simple example of one way you could achieve this. ...
1 day ago | 0
Answered
Error While running a while loop (index exceeds number of array elements)
You create variable Vdiode so that it contains a single value, 1. Then in your while condition, you try to compare the second va...
Error While running a while loop (index exceeds number of array elements)
You create variable Vdiode so that it contains a single value, 1. Then in your while condition, you try to compare the second va...
1 day ago | 0
Answered
Remove first characters from a string
Perhaps try using cellfun in combination with extract? u{1,1}="ART1/TEACH"; u{2,1}="H0ME/SHOW" f = @(x) extractAfter(x,5);...
Remove first characters from a string
Perhaps try using cellfun in combination with extract? u{1,1}="ART1/TEACH"; u{2,1}="H0ME/SHOW" f = @(x) extractAfter(x,5);...
1 day ago | 0
Answered
How can I import multiple text files in my folder to Matlab?
See my reply in this post.
How can I import multiple text files in my folder to Matlab?
See my reply in this post.
1 day ago | 0
Answered
Plot multiple conditions in same figure using for and if loop.
You might as well keep your data in a table. Coverting it to a cell array doesn't help you. Creating your plot can be done quit...
Plot multiple conditions in same figure using for and if loop.
You might as well keep your data in a table. Coverting it to a cell array doesn't help you. Creating your plot can be done quit...
1 day ago | 0
| accepted
Answered
Split a cell that contains a string
Look into cellfun. This will apply a function to each cell in the cell array. Here's an example of one way of doing this. u{1,...
Split a cell that contains a string
Look into cellfun. This will apply a function to each cell in the cell array. Here's an example of one way of doing this. u{1,...
1 day ago | 0
| accepted
Answered
Index exceeds the number of array elements (6) (I´m doing the program for composite simpson 3/8 rule)
The error generally means you are trying to extract a value of an element of a vector that does not exist. Here, your vector is ...
Index exceeds the number of array elements (6) (I´m doing the program for composite simpson 3/8 rule)
The error generally means you are trying to extract a value of an element of a vector that does not exist. Here, your vector is ...
1 day ago | 0
Answered
How to plot forecasted data with corresponding dates
You simply have your X-Data be datetimes. The code you shared should work. Can you confirm that datetime(A) creates dates? Here...
How to plot forecasted data with corresponding dates
You simply have your X-Data be datetimes. The code you shared should work. Can you confirm that datetime(A) creates dates? Here...
1 day ago | 0
Answered
What is wrong with my code?
Nothing. It's doing exactly what you've told it to do. You specified a stepsize of 0 (variable h). This causes t to be an empt...
What is wrong with my code?
Nothing. It's doing exactly what you've told it to do. You specified a stepsize of 0 (variable h). This causes t to be an empt...
1 day ago | 0
Answered
How to make a standalone app have the ability to open .fig files?
You could add a button that uses uigetfile in the callback code to allow the user to select the fig file. The next line of the c...
How to make a standalone app have the ability to open .fig files?
You could add a button that uses uigetfile in the callback code to allow the user to select the fig file. The next line of the c...
4 days ago | 0
| accepted
Answered
Can I create on-ramp like tutorials?
It is not currently possible to create your own on-ramp style coures. While not equivalent, one option might be to create a cour...
Can I create on-ramp like tutorials?
It is not currently possible to create your own on-ramp style coures. While not equivalent, one option might be to create a cour...
4 days ago | 0
| accepted
Answered
Need help in changing function from python to matlab
https://www.mathworks.com/videos/functions-and-subfunctions-97413.html
Need help in changing function from python to matlab
https://www.mathworks.com/videos/functions-and-subfunctions-97413.html
4 days ago | 0
Answered
How do I plot table with subplot?
I recommend going through MATLAB Onramp. Chapter 9 covers plotting, but it sounds like some of the other chapters would be helpf...
How do I plot table with subplot?
I recommend going through MATLAB Onramp. Chapter 9 covers plotting, but it sounds like some of the other chapters would be helpf...
4 days ago | 0
Answered
Time vector to generate a sinusoid signal with 0.5 seconds duration , Fs =200
When using linspace, don't forget to account for 0. For example, how many numbers are there between 0 and 10? 11. You should a...
Time vector to generate a sinusoid signal with 0.5 seconds duration , Fs =200
When using linspace, don't forget to account for 0. For example, how many numbers are there between 0 and 10? 11. You should a...
4 days ago | 0
| accepted
Answered
matlab syntax error "for" cannot run as it appears
The issue here is you have named your script 'for.m' but for is a reserved word indicating the start of a for loop. Give your s...
matlab syntax error "for" cannot run as it appears
The issue here is you have named your script 'for.m' but for is a reserved word indicating the start of a for loop. Give your s...
6 days ago | 0
Answered
Index in position 2 exceeds array bounds (must not exceed 8)
The issue I see is that you are assuming A is square (8x8), but it is not. It has dimensions 9x8. However, you are only using th...
Index in position 2 exceeds array bounds (must not exceed 8)
The issue I see is that you are assuming A is square (8x8), but it is not. It has dimensions 9x8. However, you are only using th...
7 days ago | 0
Answered
plotting a symbolic function
Sounds like a homework assignment, so I won't provide an answer, but take a look at the fplot function documentation page. One o...
plotting a symbolic function
Sounds like a homework assignment, so I won't provide an answer, but take a look at the fplot function documentation page. One o...
7 days ago | 0
Answered
Error "too many inout arguments" using "diary"
Because there are spaces in your path, you need to enclose your file path+name in quotes. diary 'C:\Analise de Regressao\EXUnid...
Error "too many inout arguments" using "diary"
Because there are spaces in your path, you need to enclose your file path+name in quotes. diary 'C:\Analise de Regressao\EXUnid...
7 days ago | 0
Answered
ECG data heart rate
Here's an example from the documentation of how to get data from physionet. Here's another example of getting the data directly ...
ECG data heart rate
Here's an example from the documentation of how to get data from physionet. Here's another example of getting the data directly ...
7 days ago | 0
Answered
how to run "ray tracing in conference room"example?
I assume you are referring to the ray tracing example shown on this page. If you scroll to the very bottom of the page, you will...
how to run "ray tracing in conference room"example?
I assume you are referring to the ray tracing example shown on this page. If you scroll to the very bottom of the page, you will...
8 days ago | 0
Answered
convert epoch time to yyyyMMDDHHMMSS
Just as an example, here is one way to read it in. opts = detectImportOptions("HPP2.xlsx"); % Keep variable names as they are ...
convert epoch time to yyyyMMDDHHMMSS
Just as an example, here is one way to read it in. opts = detectImportOptions("HPP2.xlsx"); % Keep variable names as they are ...
9 days ago | 0
Answered
How do select values in one table which match those in another...
If you are unfamiliar with joining tables, I suggest using the Join Tables task in the live editor. This allows you to interacti...
How do select values in one table which match those in another...
If you are unfamiliar with joining tables, I suggest using the Join Tables task in the live editor. This allows you to interacti...
10 days ago | 0
Answered
How can I Identify the P,Q,R,S and T waves in all 12 leads of ECG
If you would like an interactive way to try to detect peaks, I suggest using the Find Local Extrema task in the live editor. It ...
How can I Identify the P,Q,R,S and T waves in all 12 leads of ECG
If you would like an interactive way to try to detect peaks, I suggest using the Find Local Extrema task in the live editor. It ...
10 days ago | 0
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