Community Profile

photo

Jakob B. Nielsen


Last seen: 4 days ago
83 total contributions since 2019

Jakob B. Nielsen's Badges

  • 3 Month Streak
  • Knowledgeable Level 3
  • First Answer

View details...

Contributions in
View by

Answered
Continue if file doesn't exist - pop_loadset
Use the exist or isfile functions. E.g. for i = sub for j = run if exist(['.../2_correctTriggers/',sprintf('p0%...

13 days ago | 1

| accepted

Answered
How do i create a variable as index for vector m for my code below.
Your issue is that if you make a for loop for 0.1 to 1000, and then use that same counter as an index, when you then type M(omeg...

13 days ago | 0

| accepted

Answered
plot vector with string timestamp
Take a look at the datetick function.

14 days ago | 0

Answered
Sum of signals and filter the sum and recuperate the inicial frequencies
Making the simulated signal is quite simple. First, make a vector t which covers the time domain you are interested in. Then, ge...

17 days ago | 1

| accepted

Answered
Multiple Input/output function to excel
You can achieve this in many ways. The simplest way would be to just create arrays of your input ranges, for example in2=0:0.0...

18 days ago | 1

Answered
compiling Matlab files not clear
Hi farzad, It is definitely possible to compile an m file to a standalone exe file, for example in the form of a GUI / app. Whe...

18 days ago | 1

Answered
Can Matlab handle segmented graphs and automatic trendlines?
The answer to all four questions is yes. You can execute several plots in the same figure, as well as on the same axes (axes i...

19 days ago | 1

| accepted

Answered
How to centre textboxes on the plot outline?
First, make a handle for your figure: ax=axes; plot(ax,t,x); Next, when you set the dimensions of your textbox, refer b...

19 days ago | 1

| accepted

Answered
scalar vs nonscalar structure: advantages?
There are probably people out there much smarter than me, so take this with a grain of salt. If it were me, I would choose tha...

19 days ago | 0

Answered
How to combine multiple files into one .csv
If I run your code and pause it after the first execution of the for loop, the num variable is empty, so something might be up w...

19 days ago | 0

| accepted

Answered
How to plot multiple vertical lines at specific points on x axis?
By default, matlab replaces plots on an axes instead of adding. However, if you set hold on, it will add instead of replacing, l...

19 days ago | 0

Answered
Legend position according to axes
You can specify the position of your legend yourself with coordinates, rather than using a predetermined location. First two coo...

20 days ago | 0

Answered
Read out parameter values of a polynomial compensation curve.
myfit=fit(x,y,'poly3'); From there you can extract the coefficients as myfit.p1, myfit.p2 etc.

24 days ago | 0

| accepted

Answered
Vectorized alterlative to identify duplicate elements in an array
Logical indexing for every instance, then convert the logical output to doubles and sum it (since you cant sum logicals), and fi...

24 days ago | 0

Answered
How to change Y-axis in subplots of Boxplot on the same figure
You need a reference back to each inidividual subplot. Right now, your subplot1 label is overwritten each time, so you can only ...

25 days ago | 0

Answered
Animating an m-file to show a rectangle filling up
I don't know what kind of animation you are looking for, but something quick and simple would be to insert a pause after every p...

26 days ago | 0

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: ...

1 month ago | 0

| accepted

Answered
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...

1 month ago | 0

| accepted

Answered
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...

1 month ago | 0

Answered
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...

1 month ago | 0

| accepted

Answered
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...

1 month ago | 0

| accepted

Answered
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...

1 month ago | 0

| accepted

Answered
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...

1 month ago | 0

Answered
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...

1 month ago | 0

Answered
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...

1 month ago | 0

Answered
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...

1 month 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...

1 month ago | 0

Answered
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...

1 month ago | 0

Answered
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...

1 month ago | 0

Answered
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...

2 months ago | 0

Load more