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Jeff Miller


Last seen: ein Tag vor Aktiv seit 2013

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Beantwortet
How can i understand the within and between model factors of a mixed model ANOVA
Yes, this is something that can be accounted for using withinDesign. See https://au.mathworks.com/matlabcentral/answers/467222-...

etwa 2 Monate vor | 0

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Beantwortet
Inverse of a mixture distribution of two lognormal functions
Unfortunately, your method below won't retrieve the Cr values correctly except in the special case where the two distributions i...

2 Monate vor | 1

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Beantwortet
Using bootstrp for t-values
It depends on whether you want it to be possible that the "one randomly sampled value" is also present within the random sample ...

3 Monate vor | 0

Beantwortet
Find the two most commonly occurring values in a multimodal distribution of numbers.
It would be more informative to see a histogram of your y values since they aren't related to x per se. If that histogram looks...

4 Monate vor | 0

Beantwortet
ANOVA for linear mixed-effects models produces misleading main effects
One common approach in this situation is to rescore x to shift the intercept to a value that you do care about--usually the mean...

4 Monate vor | 1

Beantwortet
Alphabet T and L are overlapping in some of the trials in this code for Psychtoolbox. How to resolve this issue ?
I think you have a lot more randomization and complexity than you need. For example, it doesn't matter what order you draw the ...

4 Monate vor | 0

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Beantwortet
ANOVA for linear mixed-effects models produces misleading main effects
In addition to what @the cyclist said, here is another way to look at it: "I always assumed that the stats for the main effect ...

4 Monate vor | 1

Beantwortet
fit a log 'raised cosine' distribution on univariate data in matlab
I think the problem is here: y = lograisedcosinepdf(x,mu,s); Since you are plotting xgrid versus y, I think you want y = logr...

4 Monate vor | 0

Beantwortet
Three-way repeated-measures ANOVA with no between-factor
It sounds like you are almost there but this isn't right: "given filtered searches for each factor (e.g., data(:, strcmp(gender,...

5 Monate vor | 1

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Beantwortet
Non parametric N-way analysis of variance
No, there isn't one. This isn't actually a Matlab limitation, but rather a statistical one, because there simply isn't a clear ...

5 Monate vor | 0

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Beantwortet
Save a variable during parfor loop
Maybe break up your computations into segments, run the parfor within each segment, and save the results at the of each segment,...

5 Monate vor | 1

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Beantwortet
Linear regression on data with asymmetric measurement error
If you have separate measures of the lower and upper directional error associated with each X value (either empirical or derived...

7 Monate vor | 0

Beantwortet
Compute conditional mean from distribution
Another approach: pd = makedist('Lognormal', 5, 0.5); lb = icdf(pd,0.01); % find scores at 1% and 5% ub = icdf(pd,0.05); td...

7 Monate vor | 0

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Beantwortet
Error in generalized linear mixed-effects model with poisson distribution.
I haven't used Poisson models myself, but I thought they required the values of the dependent variable to be non-negative intege...

8 Monate vor | 0

Beantwortet
F values come out as Infinity using the anovan function
The underlying problem is that the d.f. for error is 0, which is responsible for the 0 MS error. In essence, there are not enou...

8 Monate vor | 0

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Beantwortet
How to Calculate the Effect Size at p=.05
You can get an answer by computing a confidence interval for the Cohen's d. Specifically, at p=0.05, one end of the confidence ...

8 Monate vor | 0

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Beantwortet
How to locate 'Cupid-master' path on my system
I think Cupid-master is just a folder name that others have used when they installed the files, and you can just addpath to your...

8 Monate vor | 1

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Beantwortet
How to extract 3 Weibull parameters obtained using method of moments
parms = weib.ParmValues; % this function reports back the current parameter values of the weib distribution.

8 Monate vor | 1

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Beantwortet
Compute group statistics when the group definition is an OR of values found in several columns of a table
Maybe reformat the table with stack: T=table([1 1 2 3 3 4]',{'John','Bob','Emma','Emma','Bob','Bob'}', ... {'Emma','','Bob...

9 Monate vor | 0

Beantwortet
Writing Matlab Table to File
Try this: str = formattedDisplayText(S); str = erase(str,"<strong>"); str = erase(str,"</strong>"); fprintf(file,"%s",str); ...

9 Monate vor | 0

Beantwortet
parfor variable classification issue revisited
Maybe something like this would be helpful, using the wonderful allcomb. idx = allcomb(1:5,1:6,1:7,1:8,1:9); nrows = size(idx,...

10 Monate vor | 0

Beantwortet
Create .mat file which appends a variable each time a function is executed
Maybe you can use the function 'matfile' to do what you want. Here is a little example: % This is part of the main program / s...

10 Monate vor | 0

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Beantwortet
Why are pool workers going inactive while many iterations remain?
What you would like is for any free processor to take up any waiting task (me too), but for some reason that's not how it works....

11 Monate vor | 0

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Beantwortet
How to generate a Frechet distribution using Methods of Moments?
Here is how you might do it if with Cupid : %% Example for the 2-parameter Frechet distribution (minimum known to be 0) % M...

11 Monate vor | 0

Beantwortet
How can I calculate True positive, False positive, True negative and False negative of real and predicted dataset?
First you need to map your 3 values 1-3 onto just two categories: positive and negative. For example, you might decide to call ...

11 Monate vor | 0

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Beantwortet
Linear Regression with Only Dependent Variables
It sounds like you can get what you want from simply [rho, pval] = corr(matrixA(:,1),matrixB(:,1)) fitlm is for situations wit...

12 Monate vor | 1

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Beantwortet
How to use chi2gof within CUPID
Yes, that is correct. The successive bin probabilities are the differences of the successive CDF values, and the expected numbe...

12 Monate vor | 1

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Beantwortet
Goodness-of-Fit for a best-fitting distribution? (by using CUPID)
There are lots of different ways to evaluate the goodness of fit of a given theoretical distribution to a dataset (see, e.g., wi...

12 Monate vor | 1

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Beantwortet
Fit a statistical distribution to truncated data
If you would like to fit a variety of truncated distributions in addition to the normal, you might find Cupid helpful. For inst...

12 Monate vor | 2

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Beantwortet
Fit parameter to Weibull distribution
The problem is a bad choice of starting values. You will get much better parameter estimates with params = mle(A,'pdf',customp...

etwa ein Jahr vor | 0

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