decimal to fraction conversion
format rational 74./ 144 or if you would like to have numbers format rational [num, dem] = rat(74./ 144); ...

6 years ago | 2

Pause code until Excel file stored
This way might work. when you open and Excel file it generate a hidden file (i forget the file extend and I have not Excel right...

6 years ago | 0

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How to split the cell data?
Put your data in a text file, let say FileName.txt, then: TXT = fileread('FileName.txt'); Split = strsplit(TXT, {'.' ' '...

6 years ago | 0

Labeled rows and column in a matrix

6 years ago | 0

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how could I use subplot function to squeeze 12 existing graphs into 2 pages of 2x3
h = 2.5:2:40.5; i=1; % ADD THIS LINE figure; % ADD THIS LINE for a = date1204:date...

6 years ago | 1

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Up to what versions of MatLab can you still use textscan
http://www.mathworks.com/help/matlab/ref/textscan.html Matlab2016a accepts this code !

6 years ago | 0

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Sub-Function help!
Based on the question it seems "Scores" is a N*3 matrix (N shows number of students). You should write a function that outputs A...

6 years ago | 0

how to compare two files line by line?
f = fopen('nv.txt'); fid = fopen('test.txt'); k = 0; while ~feof(fid) s1 = fgetl(fid); frewind(f) % start f...

6 years ago | 0

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Find the First element that satisfies a condition
If you dont mind a little coding: A = [7 3 9;5 8 8;0,2,6]; FirstCon = zeros(size(A,1),1); i=1; B = A'; % I am...

6 years ago | 0

crop a region of interest on images and create new files only with this region
Im = imread('ngc6543a.jpg'); %load your image image(Im) x_start = 50; % start x x_end = 500; % end x y_start = 50...

6 years ago | 0

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How do you clear the contents of a table?
It depends on the structure of your columns. The easiest way is to put NaN on the raw (if there is a numerical column), then yo...

6 years ago | 0

Change number of xlabel ticks to show
I have not get the question completely, if you want to plot just some points, you can just compute those points! otherwise you c...

6 years ago | 0

how to fixed specific results for times of implementation
Use rng(1,'twister') at top of your code. It controls random number generation functions and you will always see the sa...

6 years ago | 0

How to plot phase graph from csv with real and imaginary values?
It depends on what would you like to plot. But first you must define them as complex number for Matlab: z = complex(real, i...

7 years ago | 0

why showing assignment dimension mismatch?
this works correctly: data = rand(1,200); d=[5,8,2,9,4,1,8,0,3,8,1,4,9,4,9,25,3]; k=1; for z=1:1:d(k,2) ...

7 years ago | 0

Problem with using && operator in if conditional statement with array involved
You should use one "&" if you have logical vectors. % Correct a = [1,2]; b = [3,4]; if a==a & b==b c...

7 years ago | 0

I have a grid of cells and I want to get the average value of cells in the 7th column.
mean(cell2mat(name_of_table(:,7)))

7 years ago | 0

How to eliminate value at each position required
for i=1:16; for j=1:16; for Tx=1:128; for Rx =1:128; if E{i,j}(Rx,Tx)==E{i,j}(31,119) ...

7 years ago | 0

How many levels of the tree should I prune in my decision tree?
There is no certain number for that. One way is computing resubstitution error for different pruning level and find the place wh...

7 years ago | 1

Need help with this question I was asked to preform
We are not going to give you the answer, since this is a basic question which is trying to teach you not only how should you cod...

7 years ago | 0

how to find the column number of first zero element of each row
This is your answer: a =[ -1 3 0 0 0 0 2 3 4 5 0 0 1 2 1 ...

7 years ago | 2

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Nonlinear Regression w/ categorical predictors?
I am using Matlab R2014b and I have the same problem. It seems in Matlab R2015 this problem is solved since you can use not only...

7 years ago | 0

how can i plot a periodic function such as sawtooth or gate function over a defined period
t = 10; % total simulation time T = 3; % period x = 0:0.1:t; % lets say your original function is y=2*x which repeate...

7 years ago | 3

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If you want the size of your vector you should use the following comment: size(centers) "size centers" shows the size of...

7 years ago | 1

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When with rounding and precision
What you said is not true! for multiplication the exact number is : 0.998545000000000 p15 = 0.8683*1.15; r = round(p...

7 years ago | 0

superscript/subscript in labels not working
x= 1:10; y=2*x; plot(x,y) ylabel('e^t') It works on Matlab R2014b, maybe the version that you are using does not s...

7 years ago | 4

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how can i calculate the sum of the following geometric series N= 1000 and r =0.99
N=0:1000; r = 0.99; E = r.^N; sum(E)

7 years ago | 0

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Too big classification tree
There are many ways to do that, e.g. compare the following tree1, tree2, and tree3. It depends on your problem in hand, which on...

7 years ago | 0

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