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Jakob B. Nielsen


Last seen: Today
67 total contributions since 2019

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Answered
how to load multiple files and do the computation for each of them and write the output in consequent rows
Your loop will want to start with grabbing all files in a folder. uigetfile with the MultiSelect option will work wonders here: ...

5 days ago | 0

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I need help with my While Loop!
Index them! Either as a structure, or an array with a 4th dimension. I personally favour structures, since 4D data makes my head...

5 days ago | 0

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how to read images one by one from folder for operation using for loop
I like to use the multiselect function of uigetfile as an input to a for loop: [Names,Paths]=uigetfile({'*.img*'},'MultiSelect...

7 days ago | 0

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data excel in matlab
You have an array dataExcel which has size(dataExcel,1) rows, and size(dataExcel,2) columns. The rows would correspond exactly t...

8 days ago | 0

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Counting specific element in one column corresponding to unique elements in an another column
You can use logic indexing. Example: length(b(a==1 & b==-1)); You get those entries from b which fulfils the condition that t...

8 days ago | 0

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Two x-axis for the same y-axis
You're on the right track with some of the stuff you have tabbed out. All you need is to set the x and y limits for your ax2 axe...

9 days ago | 0

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Help in Developing Graph.
This is case specific, but what you want to do is define the 8 interesting points, and then simply plot them. The text is less s...

9 days ago | 0

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Finding corresponding term from a uitable
If I recall, strcmpi needs string arrays, character vectors or cell arrays of character vectors as inputs, whereas you give it a...

9 days ago | 0

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Write table with UIPUT file
Try typing this bit in the command window: >> '(pname,fname)' ans = '(pname,fname)' So your path is a string named (pna...

10 days ago | 0

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How can I splitt up a big matrix into smaller matrises, splitting it up by values on the x-axis
Logical indexing will help you here - a for loop is also possible but would be much more complicated. Lets call your initial m...

11 days ago | 0

Answered
How can I create a random walk for a given function?
You can use a for loop, and then add your randomness in whatever way you like. Example: for i=1:100 %anything that follows will...

11 days ago | 0

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Any idea how to do and represent ttest results on box plot?
Yes - the way forward is to compare 1 and 2, 1 and 3 and so on. You could look into some of the built-in tools in matlab, for ex...

11 days ago | 0

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How can i add new value into next row in excel?
A simple solution: define a counter file that pertains to your GUI - lets call it rownumber. Save it manually the first time, to...

11 days ago | 0

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while doing curve-fitting for custom equation, error is occuring??
If your input data contains or spans x=0, your first logaritm will not be defined. In addition, if your x exceeds 1, your second...

15 days ago | 0

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Delete 335 values every 335th time.
It is entirely possible that there is a much easier way to go about this - but here is nevertheless a way. I've made a for loop ...

16 days ago | 0

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How can I check if the next generated row has no repetitions in the same columns in the previous row using a while loop
Your problem is that the check you add in the end, (s (:, j)) ~ = 1, examines if the sum in column j is more than 1 - but the in...

16 days ago | 1

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Answered
Calculating grades in a while loop
You don't need a while loop for that - it is easy with logic indexing, like so: score=[82 75 78 82 90 87]; A=score(score>=90)...

16 days ago | 0

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How to plot an ultrashort light pulse
A true monochromatic laser beam can never achieve ultrashort pulse lenghts. Ultrashort pulses make use of interference of light ...

22 days ago | 0

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How to plot only positive values?
You can use logical indexing. posY=Y(Y>0); posX=X(Y>0); %the X values for which it is true that the value of Y in the corres...

22 days ago | 0

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How to create a matrix for plotting surf(x,y,z) from multiple .dat files?
I hope your data files are in order! :) First, get arrays of your filenames, and then create a loop withinwhich you use the fu...

23 days ago | 0

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Change for loop stepsize
I think, when you create the for phaseerror = 0:stepsize:limit loop, you have already determined your increment - you cannot cha...

23 days ago | 0

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How to plot multiple plot in the same figure inside for-loop
If hold on is used, matlab will add plot commands to the active axes (or active figure, if you will), unless you specify otherwi...

23 days ago | 0

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Make gui for function CROSSIT
Try to read your error. "There is no 'srting' property of the 'uicontrol' class." Does that look right to you? Its a simple ty...

24 days ago | 0

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i want to find the values in the x axis for the respective y axis
You seem to do your autocorrelation in steps of 1. What is the precision you are after? Is it simply "the first time SWH drops b...

24 days ago | 1

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How to calculate some statistical moments for every cell of a cell array?
A good way to troubleshoot is to insert a keyboard line - it pauses the code, and allows you to see "what matlab sees" mid-execu...

24 days ago | 0

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How to take an integer input from matalab file and put it in app designer as an enter box number ?
Lets call your app GUI. First define a text box on the GUI; TextEdit=uicontrol('Style','Edit','Units', 'normalized','string'...

25 days ago | 0

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Import data TXT File to Matlab
You will want to clean up your files a little before importing them; Matlab can understand ; , : tabs and spaces as delimiters, ...

25 days ago | 0

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Creation of a loop code
This partition function might help. Call plist=partitions(100,1:100,[],3); and you will get a 833x100 matrix where the sum of th...

25 days ago | 0

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How to write function with multiple input and output (Function for Optimization based on Experimental data)
a(i) wants to assign a single value into a vector, a, on the ith index. But alpha(:,1) refers to every value iin the first colum...

25 days ago | 0

Answered
Confidence intervals for fitlme
If you look at the linear mixed model documentation you should be able to extract the confidence interval values from lme.Coeffi...

25 days ago | 0

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