Sergio
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Accept 20 answers given by other contributors
Awarded to Sergio on 26 Feb 2024
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Optimization toolbox installed, but MATLAB says it has been removed
I installed MATLAB ra2024, and before on rb2023 I had Optimization toolbox well working. Nevertheless, when trying to run it in ...
8 mesi fa | 1 risposta | 0
1
rispostaDomanda
Obtaining a scalar value from a vector output
Hi, with the given files, if you run test-modified.m and then enzymeLeastSquares.m, you obtain the necessary inputs for running ...
8 mesi fa | 1 risposta | 0
1
rispostaDomanda
How to use an output from on file as input in another file.
The given file "enzymeGeneral.m" generates a vector. " test-modified.m" generates a Jacobian. How can I use these answers an...
8 mesi fa | 1 risposta | 0
1
rispostaDomanda
Error message "Invalid use of operator"
Hi, when I run "enzymleastsquares.m" I get an odd error "Invalid use of operator" I used originally the normal =, but MATLAB...
8 mesi fa | 1 risposta | 0
1
rispostaDomanda
How do I plot a tent-map?
I have to plot the given function on the unit interval. How can I do that? I didn't find any useful answers on MATLAB to...
8 mesi fa | 1 risposta | 0
1
rispostaDomanda
How to generate a matrix from specific outputs from a MATLAB file?
Hi, the file test_modified.m generates a set of values for "SP" and "grad". How can I extract the calculated grad values which a...
8 mesi fa | 2 risposte | 0
2
risposteDomanda
"reshape" does not give column vector entries in output
Running test_modified.m we obtain the vector entries for the residuals , as a 1x8 vector. However, with either r = reshape([r...
8 mesi fa | 1 risposta | 0
1
rispostaDomanda
How to extract data from a file, and form a column vector?
Take the four files, and run "test.m" in MATLAB. It generates the relative concentrations of Substrate and product as label "SP...
8 mesi fa | 2 risposte | 0
2
risposteDomanda
How do I create a new function for a least-square file?
Hi, in the given files, I am aiming to do what has been done in this example shown below: The solution of the least squa...
8 mesi fa | 0 risposte | 0
0
risposteDomanda
Writing out a system of equations for an enzyme reaction
I have the given file, where the rate of reaction is evaluated and gives F as a function of the concentration of the product P....
9 mesi fa | 0 risposte | 0
0
risposteDomanda
Viewing a house in MATLAB
Hi, I would like to view the house given in the mat file. When I issue: load husdata.mat patch(walls{1,1},walls{1,2},wall...
9 mesi fa | 1 risposta | 0
1
rispostaDomanda
How to develop "a model" from a given m-file of regression analysis?
With the help of the attached code I need to develop a model for the price variation based on a combined (linear) dependence on ...
9 mesi fa | 2 risposte | 0
2
risposteDomanda
How can I plot the linear variation?
In this attached file, I plot the car price vs mileage and model (year). in = readtable('FordFocusCMAX.xlsx') %plot the dat...
9 mesi fa | 1 risposta | 0
1
rispostaDomanda
Plotting matrix data without existing x-values.
I have this simple matrix, where the first column indicates the number of males of age 0 to 99 (first row, age 0, second row age...
9 mesi fa | 1 risposta | 0
1
rispostaDomanda
Convert a text file to an m.file?
Hi, I have this text file, which I received as an m.file and was wondering how was it generated? How can I do the same for anot...
9 mesi fa | 1 risposta | 0
1
rispostaDomanda
Converting a workspace file to an m-file
Hi, I have looked through https://se.mathworks.com/help/matlab/workspace.html for some rapid method to save a table -file in the...
9 mesi fa | 1 risposta | 0
1
rispostaDomanda
Curve fitter, how to start?
Hi, I just imported curve fitter to the my MATLAB. I have these coordinates from the xls file , and I wish to import them direct...
9 mesi fa | 1 risposta | 0
1
rispostaDomanda
Generate a logarithmic regression of xlsdata and plot it
I have the given data in the xls file. I tried to convert the Var1 and Var2 to log10 values, and then do a regression with the g...
9 mesi fa | 1 risposta | 0
1
rispostaDomanda
Plotting several plots of respective ranges from an excel file into one single plot
Hello, I have this excel file which contains recordings over several years of the temperature at an airport. When I inspect it ,...
9 mesi fa | 2 risposte | 0
2
risposteDomanda
Extract a specific range of rows from an excel file using opts = detectImportOptions(filename)
I try to extract rows 191-222 from an excel file, and I use opts = detectImportOptions(filename) However, by inspecting the ...
9 mesi fa | 1 risposta | 0
1
rispostaDomanda
Extracting 2 columns from a excel file and send them to an own matrix file
Hello, I have an XLS file that I need to extract two columns from, and send them in the Workspace to an own file. I do on the...
9 mesi fa | 2 risposte | 0
2
risposteDomanda
Converting entries from array to double from an entire column in a matrix for plotting
I have this file which I want to analyse for temeprature fluctuations: D=readtable('tempDataTrollhFlygpl.xlsx', 'NumHeaderLin...
9 mesi fa | 2 risposte | 0
2
risposteDomanda
Finding the maximal value in a matrix, within a specific column, and show the value in the output.
Hello, I have a matrix that I need to extract the maximal value of column D, which is the 4th column. I use the following co...
9 mesi fa | 1 risposta | 0
1
rispostaDomanda
How can I do a Fourier series expansion of a wave-scan from an EDF file in MATLAB?
Hi, I have an EDF file that I obtained from an organization, and this EDF is showing a set of waves, which can be simplified to ...
10 mesi fa | 1 risposta | 0
1
rispostaDomanda
fopen and fget reading lines from a text
Hi, I try to work with fget and fopen, and I would like to read the first three lines from a text file (attached), and print the...
10 mesi fa | 1 risposta | 0
1
rispostaDomanda
How to find a specific number in a specific column in an excel file and how many times it occurs
Hi, I have been looking around for a solution to this problem, I have an excel file and it contains the number -1100 in the colu...
10 mesi fa | 1 risposta | 0
1
rispostaDomanda
Two graphs in the same plot, why?
Hi, I imported some data from an xls file, and when plotting it , I obtain two graphs in the plot. Only one is necessary. What i...
10 mesi fa | 2 risposte | 0
2
risposteDomanda
Error message when attempting to plot selected area from a XLSX file: " Specify one or two table subscripts after the table."
Hi, I try to plot a defined area of data in an XLSX file, the area is defined from by the columns C11-C6796 and D11-D6796 So...
10 mesi fa | 1 risposta | 0
1
rispostaDomanda
Problems using plot3
I have an xlsx file I'd like to print information from. I would like to read this data into MATLAB and plot how the price of (t...
10 mesi fa | 2 risposte | 0
2
risposteDomanda
Import XLSX in MATLAB using input() and xlsread()?
Hi, I am trying to create code for a script file in which Matlab's function input() is used to read the name of an excel file wh...
10 mesi fa | 1 risposta | 0
1
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