Answered

Date numbers in double to datestring matrix

You cannot put date strings and numerical data into a single matrix. You could use a cell if you wanted. For example: X_new...

Date numbers in double to datestring matrix

You cannot put date strings and numerical data into a single matrix. You could use a cell if you wanted. For example: X_new...

1 year ago | 0

| accepted

Answered

How do I make an array of elapsed times?

OK, so this sounds like it's inside a for loop, in which case you could try something like this: for runs=number_of_runs:-1...

How do I make an array of elapsed times?

OK, so this sounds like it's inside a for loop, in which case you could try something like this: for runs=number_of_runs:-1...

1 year ago | 0

Answered

How to display velocity for each loop at 20 seconds?

You have an error in your code: fprint('%.0m/s\n', vj(,2) This code should work for you: Time=20; %Time the jumper ...

How to display velocity for each loop at 20 seconds?

You have an error in your code: fprint('%.0m/s\n', vj(,2) This code should work for you: Time=20; %Time the jumper ...

1 year ago | 0

| accepted

Answered

How to solve non linear equation for one variable?

If you want to solve for multiple values of temp and yieldstress, you will have to use a for loop. for i=1:numel(temp) ...

How to solve non linear equation for one variable?

If you want to solve for multiple values of temp and yieldstress, you will have to use a for loop. for i=1:numel(temp) ...

1 year ago | 1

| accepted

Answered

How to plot a pdf and cdf for my code

If you want to compute the pdf for a normal distribution over a range of values, you must input a vector of possible values sort...

How to plot a pdf and cdf for my code

If you want to compute the pdf for a normal distribution over a range of values, you must input a vector of possible values sort...

1 year ago | 0

Answered

Finding the Maximum of 6 matrices

You can use max(X,[],dim) to specify the dimension from which to compute the maximum value. For example, if you let dim=2, then ...

Finding the Maximum of 6 matrices

You can use max(X,[],dim) to specify the dimension from which to compute the maximum value. For example, if you let dim=2, then ...

1 year ago | 0

Answered

How do I make a gradient for my data

The gradient function in Matlab takes in two main arguments: the independent variable(s) step size and the data as a function of...

How do I make a gradient for my data

The gradient function in Matlab takes in two main arguments: the independent variable(s) step size and the data as a function of...

1 year ago | 0

Submitted

minEntropyDeconv(x,L,maxIter)

This function develops a minimum entropy deconvolution filter for a sequence x

1 year ago | 2 downloads |

Answered

How would i run different events from the same .txt file?

You should import the entire matrix and then begin the splitting process. A = dlmread('Nest.txt',' '); %this assumes there ...

How would i run different events from the same .txt file?

You should import the entire matrix and then begin the splitting process. A = dlmread('Nest.txt',' '); %this assumes there ...

1 year ago | 0

| accepted

Answered

In a matrix how to replace zero by NaN.?

Try this: A(A==0) = NaN;

In a matrix how to replace zero by NaN.?

Try this: A(A==0) = NaN;

1 year ago | 2

| accepted

Answered

this is my equation using matlab , i can't get it manually.

This looks like it's the distance from each (x,y) pair to every other (x,y) pair. A_{i,j} = \sqrt{(x_i - x_j)^2}, where x = (...

this is my equation using matlab , i can't get it manually.

This looks like it's the distance from each (x,y) pair to every other (x,y) pair. A_{i,j} = \sqrt{(x_i - x_j)^2}, where x = (...

1 year ago | 0

| accepted

Answered

Classification of a whole matrix

You could turn the matrix into a vector (e.g., X = X(:)), then use the resulting vector as input to the classification learner. ...

Classification of a whole matrix

You could turn the matrix into a vector (e.g., X = X(:)), then use the resulting vector as input to the classification learner. ...

1 year ago | 1

Answered

sorting the outputs of clusters

What do you mean "sort". You could save them to different variables. For example, if you main matrix is called X and you have cl...

sorting the outputs of clusters

What do you mean "sort". You could save them to different variables. For example, if you main matrix is called X and you have cl...

1 year ago | 0

Answered

How to write a range of numbers in MATLAB?

ranges = [0,12,20:10:110]; %end points of requested speeds for i = 1:numel(ranges)-1 v{i} = V((V>ranges(i) & (V<=ra...

How to write a range of numbers in MATLAB?

ranges = [0,12,20:10:110]; %end points of requested speeds for i = 1:numel(ranges)-1 v{i} = V((V>ranges(i) & (V<=ra...

1 year ago | 0

Answered

Kmeans clustering in k=10

1) Randomly initialize 10 cluster centroids. This can be done by simply randomly selecting 10 points from your dataset. 2) Co...

Kmeans clustering in k=10

1) Randomly initialize 10 cluster centroids. This can be done by simply randomly selecting 10 points from your dataset. 2) Co...

1 year ago | 0

Answered

Help graphing this equation

You need to have an independent variable (e.g., when plotting y vs. x, x is the independent variable). So if you want to plot ep...

Help graphing this equation

You need to have an independent variable (e.g., when plotting y vs. x, x is the independent variable). So if you want to plot ep...

1 year ago | 1

| accepted

Answered

How to write a range of numbers in MATLAB?

v1 = V((V>0) & (V<=60)); numV1 = numel(v1); v2 = V((V>60) & (V<=80)); numV2 = numel(v2); v3 = V((V>80) & (V<=110)); numV...

How to write a range of numbers in MATLAB?

v1 = V((V>0) & (V<=60)); numV1 = numel(v1); v2 = V((V>60) & (V<=80)); numV2 = numel(v2); v3 = V((V>80) & (V<=110)); numV...

1 year ago | 0

Answered

How to assign fields from a Struct into every 5th column of a Matrix

It is often helpful to step through your code and examine the variables at each step. One problem could be the shape of your var...

How to assign fields from a Struct into every 5th column of a Matrix

It is often helpful to step through your code and examine the variables at each step. One problem could be the shape of your var...

1 year ago | 0

Answered

What is the easiest way to create a textbox?

The annotation command is quite useful and can save time for sure. Unfortunately, it does not have any 'top right' commands, so ...

What is the easiest way to create a textbox?

The annotation command is quite useful and can save time for sure. Unfortunately, it does not have any 'top right' commands, so ...

1 year ago | 0

Answered

How to compare two different sample size on basis of datapoints in same interval?

You can use a histogram, but with the property 'Normalization' set to 'pdf'. This will plot an estimated probability density fun...

How to compare two different sample size on basis of datapoints in same interval?

You can use a histogram, but with the property 'Normalization' set to 'pdf'. This will plot an estimated probability density fun...

1 year ago | 0

| accepted

Answered

Merging array into matrix of unequal size

Why not create the matrix M such that it's size is [numel(x), num_of_desired_columns]? For example, if num_of_desired_columns = ...

Merging array into matrix of unequal size

Why not create the matrix M such that it's size is [numel(x), num_of_desired_columns]? For example, if num_of_desired_columns = ...

1 year ago | 0

Answered

Math problem for code

Try using diff(S,1,dim) to get the difference between sequential elements in the matrix S. Each entry in diff(S) is (x_{n} - x_{...

Math problem for code

Try using diff(S,1,dim) to get the difference between sequential elements in the matrix S. Each entry in diff(S) is (x_{n} - x_{...

1 year ago | 0

| accepted

Question

Why doesn't 'HeaderLines' work in the readtable command?

I am importing some excel files into Matlab using the readtable command. There are a couple of header lines in the file that I w...

1 year ago | 2 answers | 0

Answered

Warning: Matrix is singular to working precision. how to solve?

There are ways of getting around a singular matrix, but they are a little ad hoc. have you tried QR decomposition ([Q,R] = qr(A)...

Warning: Matrix is singular to working precision. how to solve?

There are ways of getting around a singular matrix, but they are a little ad hoc. have you tried QR decomposition ([Q,R] = qr(A)...

1 year ago | 0

Answered

Shading between two curves

You can try using the "fill" function (could also use "patch"). Just off the top of my head, if you can compute the area between...

Shading between two curves

You can try using the "fill" function (could also use "patch"). Just off the top of my head, if you can compute the area between...

2 years ago | 0

Answered

How to compare the values of 2 arrays vs each other?

What do you mean by "similar"? If you want simply see the number of entries that are the same, then this could do the trick: ...

How to compare the values of 2 arrays vs each other?

What do you mean by "similar"? If you want simply see the number of entries that are the same, then this could do the trick: ...

2 years ago | 0

| accepted

Answered

How to keep an element fixed until it fits a condition?

Can you clean up the code a little? It's not clear where the loops begin and end... A couple more questions/comments. 1) How...

How to keep an element fixed until it fits a condition?

Can you clean up the code a little? It's not clear where the loops begin and end... A couple more questions/comments. 1) How...

2 years ago | 0

Answered

I would like to know if my function is correct

You actually need not go through the whole for loop to do this. First off, I assume the number of entries in x is equal to the n...

I would like to know if my function is correct

You actually need not go through the whole for loop to do this. First off, I assume the number of entries in x is equal to the n...

2 years ago | 0

Answered

How to see how a dataset changes over time with PCA.

It's hard to know exactly what you are hoping to achieve here. When using pca(x) in Matlab, we are assuming that "rows of X corr...

How to see how a dataset changes over time with PCA.

It's hard to know exactly what you are hoping to achieve here. When using pca(x) in Matlab, we are assuming that "rows of X corr...

2 years ago | 0