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Jacob Ward


Last seen: 11 months ago |  Active since 2017

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Answered
Load files from two different folders
Use the addpath() function to add the path to your second folder to the working directory: Add folders to search path - MATLAB ...

1 year ago | 0

Answered
Question related to pcolor bar and its position
You can manually change the position of the colorbar using the 'position' property. Here's an example: fig = figure; subplot(2...

1 year ago | 1

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Question


When copying plot from one subplot position to another using copyobj, the second plot exhibits "hold on" behavior while the first doesn't.
Here's a bare bones version of the code that illustrates the problem. I want both plots to not hold on to previous iterations. W...

1 year ago | 2 answers | 0

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Answered
How to count date occurrence independently of year?
This is a cool way of visualizing it as well: clear; dates = readtable('C:\Users\jacob\Downloads\Dates.xlsx','ReadVariableName...

4 years ago | 0

Answered
I need help with my code. I don't understand what the error code is for. This is the error code Error: File: Lab1Modeling.m Line: 18 Column: 12 The expression to the left of the equals sign is not a valid target for an assignment.
There are a few problems with your code as written: First, you are using curly braces instead of using the while/end or if/end ...

4 years ago | 1

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How do I Average across structure
Here's a possible solution I used to solve your problem: clear; close all; % This part just creates dummy data similar t...

5 years ago | 0

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Answered
I keep getting ??? Error using ==> plus Matrix dimensions must agree. Error in ==> dewpoint at 6 f(T,RH)=((a*T)./(b+T))+log(RH/100)
Your T has 4 elements (1x4) while your RH has 8 (1x8). When you try to add them together in your function, MATLAB doesn't know ...

6 years ago | 0

Answered
count frequency of each unique occurence in an Nx2 matrix
You could iteratively test each row for the combo you are looking for, adding 1 to the total each time a match is found, like so...

6 years ago | 1

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Answered
please help regarding plot
Doubt you'll get much use out of this, but here's how I recreated the plot in the link you gave! numbers = round(9*rand(5...

6 years ago | 0

Answered
Recursion, stock simulation
Instead of giving each variable a name with a different number, store all of these things in one array. So instead of S_0, S_1,...

6 years ago | 0

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Read different files with different names (string) in a loop in MATLAB
You don't need to use sprintf. Try the following: C={'a.dat', 'b.dat', 'c.dat',...}; for i = 1:n fid(i) = fopen(C{i}...

6 years ago | 0

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Answered
Need help finding a point on a line.
The polyfit() function you are using gives you the slope and y-intercept of your best fit line. In this case, your p = [0.2190,...

6 years ago | 0

Answered
Anybody know how to simplify this?
Not sure about the first one, but for the second one, the for loop and indexing is unnecessary. See this example: This... ...

6 years ago | 0

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Use ode values without storing
You could create a function that calls ode23, finds the sum of S, and then returns that sum. Something like this: function...

6 years ago | 0

Answered
Calculating radius of circle
Using the following equation: <<http://hawaii.hawaii.edu/math/Courses/Math110/Graphics/Circle.jpg>> You have three unknown...

6 years ago | 3

Answered
How can i convert .dat file values into days or months or years? Using Matlab?
If I'm understanding you correctly, maybe try something along these lines: milliSeconds = 221+3.5*rand(15006,1); % This ...

6 years ago | 0

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Answered
I have a matrix which is 1000 columns and 3621 rows, how do I take the mean of each row?
In general, if you have a matrix A and want to take the mean across a certain dimension, dim, you should use mean(A,dim). ...

6 years ago | 1

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Answered
how to eliminate unwanted spikes with peaks
You could try interpolating the data to get a clearer peak. Here's an example: This code generates a peak similar to the one...

6 years ago | 1

Answered
Can please somebody check my code and tell me what I ma doing wrong. I am trying to write a code for AM modulated wave of amplitude A to plot N element array of displacement values.
First off, please try to stick to the guidelines for posting questions to this site. See this answer for help in that area: ...

6 years ago | 0

Question


Interp2 yields undesired results on center daigonal.
I am doing cross spectral matrices on some data where they look something like this: <</matlabcentral/answers/uploaded_files/...

6 years ago | 2 answers | 0

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