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How to retrieve probabilities from normplot applied to data in matlab?
If you turn on the data cursor in the figure and then click on a point, these values are shown for that point. If you want to...

11年弱前 | 0

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what is the difference between pca(x) and princomp(x) matlab commands?
If you type "type princomp" you will see that it is just a call to pca with certain default inputs defined. The pca function was...

11年弱前 | 1

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Creating multiple boxplots from a single vector
Are you looking for this? nyears = 5; g = kron((1:nyears)',[1;1;1;1])

11年弱前 | 0

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T test p values for regression coefficients
If you look at "help regstats" you will see that the default model is 'linear' and this includes the constant. But you will also...

11年弱前 | 3

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Continuous laplacian random variable
Take a look at this: sigma = 1; p = rand(10000,1); A=sqrt(sigma^2/2)*log(1./p); hist(A,100) I'm not sure if it'...

11年弱前 | 0

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Is it possible to do multiple linear regression with constaint?
I don't really understand the question, but to the part where you express a desire to retain the variable names when you save th...

11年弱前 | 0

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Bug using LinearModel.fit in a loop?
I don't really understand the question. But with the hint from Sean, I will show you the following code that will collect R-squa...

11年弱前 | 1

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transformation parameter estimation using robusfit()
I should have realized what you meant at first. I don't know much about image registration, but perhaps this will have some anal...

11年弱前 | 1

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How to calculate Chi-square statistic
I believe you got an answer separately on comp.soft-sys.matlab, but: * replace 'weibull' by @wblcdf (not in quotes) * replac...

11年弱前 | 0

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How to open an obsolete `cfit` file in 2012a?
Type "help cftool" and look at the description of "cftool -v1".

11年弱前 | 0

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Counting How Many Cluster Index
Look at these, and see if it helps: unique(g) find(g==3)

11年弱前 | 1

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Scatterhist + hold on + scatterhist
This is not possible. What is possible is to use a function that plots into one set of axes, and have it add to the scatterpl...

11年弱前 | 0

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log likelihood ratio to probability measure
For large L, you might consider changing P(1)=exp(L)/(1+exp(L)) to P(1)=1/(1+exp(-L))

11年弱前 | 0

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Curve fitting, setting domain/forcing asymptote
I can't think of a generic way to constrain a function to tend to infinity as x approaches 1, but you might have some luck defin...

11年弱前 | 0

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How to use prctile in grpstats?
The trick is to use an anonymous function that has the desired percentiles built in. For example, the following two calls to grp...

11年弱前 | 1

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how do i turn off the anova1() display option?
Right idea but put an empty array between the commas: anova1(Z,[],'off')

11年弱前 | 0

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Are multcompare plots compatible with subplots?
You are right that the code clears the current figure before plotting, so setting up a subplot won't help. I just tried dele...

11年弱前 | 3

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Can you help me with a logistic regression?
I don't understand your notation, in particular log(pR,i/pL,i). I guess you tried to explain that in PROBLEM 1, but I still don'...

11年弱前 | 0

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Help with mdscale starting configuration?
You could set R=rand(6,2) outside the function, and try using that as the 'Start' argument each time you run the function. This ...

11年弱前 | 0

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displaying number in general format when using loglog plot
I don't know if there is a direct way to do this, but the following shows a roundabout way. Just don't make a log plot, but inst...

11年弱前 | 2

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performing multivariate non linear regression
Curve Fitting Toolbox will probably not work well for this. There are functions in MATLAB itself, as well as Statistics and Opti...

11年弱前 | 0

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Multcompare function does not compare all variable groups from anova2
You are right, it looks like multcompare with anova2 can only compare one dimension at a time. But multcompare with anovan can c...

11年弱前 | 1

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How to take haltonset numbers randomly
I am not aware of a CreateDesign function. Where do you find it? Perhaps you can generate a Halton set of the desired size, t...

11年弱前 | 0

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Problem in plotting confidence interval in a probability plot
You are right that probplot has no feature for including confidence bounds. The cdf method for the probability distribution o...

11年弱前 | 0

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What is the formula to calculate the number of experiment based on orthogonal array?
I would think the orthogonal array for 5-level factors would have to have a number of runs that is a multiple of 5, so it could ...

11年弱前 | 0

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plot the distribution of a dataset
I suggest you plot the histogram this way: n = n/length(SPX)/diff(x(1:2)); bar(x,n,'hist') Then you plotted the norma...

11年弱前 | 0

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How do I Define Zero Truncated distribution to find MLEs And How do I Calculate Loglikelihood value
You ask a number of questions. Here are two answers. You ask how to compute the negative log likelihood. If you have the Statist...

11年弱前 | 1

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what is exactly yhat in output of regstat ?
Looks to me like you reversed the two inputs to regstats. Unfortunately this function takes (y,x) rather then (x,y): >> hel...

11年弱前 | 2

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Finding the maximum likelihood estimates ?
I believe you want f1 = 0.5*length(x)*log(2*pi*(y(2))); You start with 1/sqrt(2*pi*sigma^2), then take logs so you get a...

約11年前 | 0

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Use of sequential feature selection
I would try 'KeepIn',[true false false true] in the function call to keep in the first and fourth of four features.

約11年前 | 1

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