Answered

Monte Carlo Simulation to generate 10,000 data from 100 data.

Here is one way: originalSample = rand(100,1); % You have your own original sample. This is some fake data to use instead for ...

Monte Carlo Simulation to generate 10,000 data from 100 data.

Here is one way: originalSample = rand(100,1); % You have your own original sample. This is some fake data to use instead for ...

2 días ago | 0

Answered

Monte Carlo Simulation Result Tabulation

% rand(2,5) doesn't do what you seem to think. Try this % (with a little extra code that might help you see how to do this in ...

Monte Carlo Simulation Result Tabulation

% rand(2,5) doesn't do what you seem to think. Try this % (with a little extra code that might help you see how to do this in ...

3 días ago | 0

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Answered

Histogram Fitting in Matlab

First, I suggest you change the histogram plot so that the frequencies are represented by the areas of the different bars rather...

Histogram Fitting in Matlab

First, I suggest you change the histogram plot so that the frequencies are represented by the areas of the different bars rather...

4 días ago | 1

| accepted

Answered

zeros in data for gamma distribution

rain1positive = rain1(rain1>0);

zeros in data for gamma distribution

rain1positive = rain1(rain1>0);

13 días ago | 0

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Answered

How to add a time limit to response time?

One way is to use GetSecs, which returns the current time. For example, MaxWait = 1.5; % As an example, suppose you want a ma...

How to add a time limit to response time?

One way is to use GetSecs, which returns the current time. For example, MaxWait = 1.5; % As an example, suppose you want a ma...

14 días ago | 0

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Answered

Parameters for Frechet Distribution

You could write a function to compute -log(likelihood of your data) from alpha & beta, then use fminsearch to find the alpha,bet...

Parameters for Frechet Distribution

You could write a function to compute -log(likelihood of your data) from alpha & beta, then use fminsearch to find the alpha,bet...

18 días ago | 0

Answered

Convolution of two probability density function

I don't know whether you can do this directly in MATLAB. If not, you can do it using the Cupid toolbox. Here is an example: %...

Convolution of two probability density function

I don't know whether you can do this directly in MATLAB. If not, you can do it using the Cupid toolbox. Here is an example: %...

21 días ago | 0

Answered

How can i merge 2 cells with different items

function str3 = mergefields(str1,str2) % Note: Returns the value in str2 for any field that is common % to both str1 & str2. ...

How can i merge 2 cells with different items

function str3 = mergefields(str1,str2) % Note: Returns the value in str2 for any field that is common % to both str1 & str2. ...

22 días ago | 0

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Answered

Convolution of two log normal distributions

Convolutions are pretty easy to do in Cupid. For example, the following code gives the attached figure muX = 9.7224; % For Ni D...

Convolution of two log normal distributions

Convolutions are pretty easy to do in Cupid. For example, the following code gives the attached figure muX = 9.7224; % For Ni D...

27 días ago | 0

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Answered

How to fit a general curve on different datasets ?

You need to set up separate independent variables for each dataset, something like this: %% Example of two datasets (3 scores e...

How to fit a general curve on different datasets ?

You need to set up separate independent variables for each dataset, something like this: %% Example of two datasets (3 scores e...

alrededor de 1 mes ago | 0

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Answered

How to get the OLS estimate from a regression based on a vector?

How about this: deltay = diff(y); b = regress(deltay,y(1:end-1));

How to get the OLS estimate from a regression based on a vector?

How about this: deltay = diff(y); b = regress(deltay,y(1:end-1));

alrededor de 1 mes ago | 0

Answered

How perform anova tests after using regress in MATLAB?

Elisa, I think this might do what you want: %linear regression d1 = D(:,1); d2 = D(:,2); d3 = D(:,3); t = table(d1,d2,d3);...

How perform anova tests after using regress in MATLAB?

Elisa, I think this might do what you want: %linear regression d1 = D(:,1); d2 = D(:,2); d3 = D(:,3); t = table(d1,d2,d3);...

alrededor de 1 mes ago | 1

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Answered

How perform anova tests after using regress in MATLAB?

It's a little difficult to say because "perform ANOVA" can mean several different things with regression models. Usually the be...

How perform anova tests after using regress in MATLAB?

It's a little difficult to say because "perform ANOVA" can mean several different things with regression models. Usually the be...

alrededor de 1 mes ago | 0

Answered

How to create a fit with more than 2 independent variables?

You might be able to do it with fminsearch, which is a very general fitting tool. The basic idea is that you write a function t...

How to create a fit with more than 2 independent variables?

You might be able to do it with fminsearch, which is a very general fitting tool. The basic idea is that you write a function t...

alrededor de 2 meses ago | 1

| accepted

Answered

How can I distinguish between an semi exponential and Gaussian distribution.

You could check the skewness, since exponentials are quite skewed and normals are not.

How can I distinguish between an semi exponential and Gaussian distribution.

You could check the skewness, since exponentials are quite skewed and normals are not.

alrededor de 2 meses ago | 0

Answered

2 way anova for pre post design

First reformat your data to have one row per individual. The data table 'tbl' should look something like this: Group t1 ...

2 way anova for pre post design

First reformat your data to have one row per individual. The data table 'tbl' should look something like this: Group t1 ...

alrededor de 2 meses ago | 0

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Answered

Joint Probability of Dependent Variables

You might want to use the FileExchange contribution for joint kernel density estimation

Joint Probability of Dependent Variables

You might want to use the FileExchange contribution for joint kernel density estimation

alrededor de 2 meses ago | 0

Answered

How can I find a p-value when dealing with a weighted sum of chi-square distributions?

I think you have to work out the distribution of the weighted sum and then check the p value in that. Here is an example, assum...

How can I find a p-value when dealing with a weighted sum of chi-square distributions?

I think you have to work out the distribution of the weighted sum and then check the p value in that. Here is an example, assum...

alrededor de 2 meses ago | 0

| accepted

Answered

Need to append several pdf files into one global pdf file.

PDF Split and Merge works well, and it's free / open-source.

Need to append several pdf files into one global pdf file.

PDF Split and Merge works well, and it's free / open-source.

2 meses ago | 0

Answered

Generate random numbers from a mixture distribution

> With this formula I obtain a concatenation from 2 distribtutions but not a mixture. Well, a mixture is just a concatenation f...

Generate random numbers from a mixture distribution

> With this formula I obtain a concatenation from 2 distribtutions but not a mixture. Well, a mixture is just a concatenation f...

2 meses ago | 1

Answered

Estimate the parameters of a skewed normal distribution knowing p5, mean and p95

Here is one script for doing this with Cupid. I don't think you are guaranteed to be able to hit all three targets exactly (not...

Estimate the parameters of a skewed normal distribution knowing p5, mean and p95

Here is one script for doing this with Cupid. I don't think you are guaranteed to be able to hit all three targets exactly (not...

3 meses ago | 0

Answered

Lognormal probability density function Fitting to experimental data

I'm guessing that your rp values are the tops of various bins and that the fp values are the probabilities in each bin? If so, ...

Lognormal probability density function Fitting to experimental data

I'm guessing that your rp values are the tops of various bins and that the fp values are the probabilities in each bin? If so, ...

3 meses ago | 0

Answered

How to use Power Analysis to Estimate Mu for Exponential Distribution

I don't think the sampsizepwr function is appropriate here. Although the sampling distribution of the mean of exponentials is a...

How to use Power Analysis to Estimate Mu for Exponential Distribution

I don't think the sampsizepwr function is appropriate here. Although the sampling distribution of the mean of exponentials is a...

3 meses ago | 0

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Answered

How can I make one of my parameters always greater than another one?

beta = alpha0 + rand;

How can I make one of my parameters always greater than another one?

beta = alpha0 + rand;

4 meses ago | 1

| accepted

Answered

.mat file name as a variable

use uigetfile to manually select the file name, so that you have the name as a string, fname. Then you can use load(fname) to l...

.mat file name as a variable

use uigetfile to manually select the file name, so that you have the name as a string, fname. Then you can use load(fname) to l...

4 meses ago | 0

| accepted

Answered

Matlab repeated measures anova - different result than in other packages

Hi again Rose, After playing around with this some more, I think the secret is to tell MATLAB that any numerically-coded catego...

Matlab repeated measures anova - different result than in other packages

Hi again Rose, After playing around with this some more, I think the secret is to tell MATLAB that any numerically-coded catego...

4 meses ago | 0

Answered

Conduct 2x3 repeated measures ANOVA using ranova()

% Describe within-Ss design: WithinFacs = table([1 1 1 2 2 2]',[1 2 3 1 2 3]','VariableNames',{'C1','C2'}); % In the next line...

Conduct 2x3 repeated measures ANOVA using ranova()

% Describe within-Ss design: WithinFacs = table([1 1 1 2 2 2]',[1 2 3 1 2 3]','VariableNames',{'C1','C2'}); % In the next line...

4 meses ago | 0

Answered

ranova with two within factors

datatable.Properties.VariableNames = {'pre_A','pre_B','post_A','post_B'}; % When you have more than one repeated-measures fac...

ranova with two within factors

datatable.Properties.VariableNames = {'pre_A','pre_B','post_A','post_B'}; % When you have more than one repeated-measures fac...

4 meses ago | 1

| accepted

Answered

How to perform Welch ANOVA?

You have to download these functions from FileExchange--they are not built-ins. E.g. wanova

How to perform Welch ANOVA?

You have to download these functions from FileExchange--they are not built-ins. E.g. wanova

4 meses ago | 0

| accepted

Answered

Re-centering a t-skew distribution

I take it you want to find the values a,b for a linear transformation such that newScores = a + b*oldScores; Presumably you ca...

Re-centering a t-skew distribution

I take it you want to find the values a,b for a linear transformation such that newScores = a + b*oldScores; Presumably you ca...

4 meses ago | 0