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Question

How can I format a classification tree?

I have created classification trees that get quite large and complex and I would like to export them in a nice format. However, ...

ungefär 9 år ago | 0 answers | 0

### 0

answersQuestion

How can I compute nodeerrors, nodesizes and nodeprobabilites of a classification tree fitted with classificationtree.fit

I have fitted a classificationtree using classificationtree.fit and now i want to have the nodesizes/errors and -probabilities r...

ungefär 9 år ago | 0 answers | 0

### 0

answersQuestion

How can I display the nodesizes, nodeerrors etc in a classification tree that was fitted with classificationtree.fit ?

I have fitted a classification tree and I want to calculate the nodesizes, the nodeerror and the node probabilities (I am only i...

ungefär 9 år ago | 1 answer | 0

### 1

answerQuestion

Plotting: How can I remove the axis label and only have it at points of my choice?

I have created a plot: data=[0.0308058510638298; 0.596862338112858;0.861890893648603; 0.673247180006754; 0.409382760478123;...

mer än 9 år ago | 2 answers | 0

### 2

answersQuestion

How can I plot a uniform distribution if I have already the parameters?

I want to plot a uniform distribution and I have already the parameter estimates. How can I plot it in a nice way? I would also ...

mer än 9 år ago | 0 answers | 0

### 0

answersQuestion

How can I save figures into structures?

I am creating a large number of different figures and plots and I want to save them in a nice structure similar to the ones used...

mer än 9 år ago | 1 answer | 0

### 1

answerQuestion

How I can I make Matlab return the impurity reduction for each node in a classification tree?

I want to build a Classificationtree with matlab and to obtain the reduction in impurity for each node. I think matlab computes ...

mer än 9 år ago | 0 answers | 0

### 0

answersQuestion

How can I save my results into tables and display them in a figure? (And export them later into Word)

Dear all, I have a results matrix which I would like to save in a table, where I can add a title, column and row headers etc a...

mer än 9 år ago | 0 answers | 0

### 0

answersQuestion

Does the function ClassificationTree.fit already perform pruning according to a complexity criterion?

I want to grow a classification tree and determine the best level of complexity. Whenever I grow a tree with the default setting...

mer än 9 år ago | 0 answers | 0

### 0

answersQuestion

Does the Kolmogorov smirnoff test implemented in matlab already perform a correction for small sample sizes?

I want to use the KS test on a rather small dataset and I know that for this case, several correction terms exist for some distr...

mer än 9 år ago | 1 answer | 0

### 1

answerQuestion

Does ClassificationTree.fit by grow the max tree?

For data classification I want to grow a maximum decision tree and then prune it back. Does the matlab function ClassificationTr...

mer än 9 år ago | 0 answers | 0

### 0

answersQuestion

How to extract a string name from a cell array and use it as name for a new variable?

I want to make matlab use a string which was previously saved in a cell array for the construction of a new variable name...how ...

mer än 9 år ago | 1 answer | 0

### 1

answerQuestion

How can I change from format [654] to format '654'?

Dear all, being new to matlab i am a bit confused about the different formats...i want to perform a string comparison with strcm...

mer än 9 år ago | 1 answer | 0

### 1

answerQuestion

How to randomly select data out of a dataset?

hey there, I want to randomly select 80% from my data to create a training dataset and use the residual 20% for the evaluation o...

mer än 9 år ago | 3 answers | 0

### 3

answersQuestion

How to find the optimal tree size when building a decision tree?

I need to categorize a set of data and want to use the CART algorithm for this purpose. In the litterature the importance of fin...

mer än 9 år ago | 1 answer | 0

### 1

answerQuestion

Crossvalidation of Classification Trees?

Hi there, I want to perform a crossvalidation of a decision tree built with the CART algorithm, i.e. I want to randomly take out...

mer än 9 år ago | 1 answer | 0

### 1

answerQuestion

Merge a variable name with a running index from a loop?

Hi there, I want to save data generated within a loop in a set of variables, whereas I want the variables to have the running ...

mer än 9 år ago | 1 answer | 1

### 1

answerQuestion

Anderson Darling Goodness-of-the-fit test?

I want to assess the GOF of a given dataset to a variety of different distributions (i.e. exponential, lognormal, normal etc) us...

mer än 9 år ago | 0 answers | 0

### 0

answersQuestion

Which MATLAB function is the best for building a decision tree with the CART algorithm?

Hello there, I want to build a tree using the CART Algorithm and so far I found two different (?) functions in the Matlab stat...

mer än 9 år ago | 2 answers | 1

### 2

answersQuestion

CART Algorithm with categorical predictor variables which consist of strings?

I want to build a decision tree from categorical data, which consist of string names (in this case designating different chemica...

mer än 9 år ago | 1 answer | 0

### 1

answerQuestion

Cart Algorithm in Matlab with more than binary splits?

Hello everyone, I want to create a Decision Tree from non-numerical, categorical data (for example I want to predict whether o...

mer än 9 år ago | 1 answer | 0

### 1

answerQuestion

Count the number of non-zero elements of a column/row of a 2D-Matrix?

Hello everyone, I have a 2D Matrix and I want to make Matlab count the number of non-zero Elements within one row, is there ...

mer än 9 år ago | 3 answers | 2

### 3

answersQuestion

Definition of variables within a loop with incorporation of the stringname into the variable name?

Hello dear Community, I have a list of strings of length i and I want to create a set of vectors (each vector has a different s...

mer än 9 år ago | 0 answers | 0

### 0

answersQuestion

Can I use stringmatch, if I am looking for a match at the end of a string??

Hello everybody, I have a dataset of strings with a structure 'product_reaction_parameter' and I want to check whether a speci...

mer än 9 år ago | 1 answer | 0

### 1

answerQuestion

How to do the Anderson Darling Goodness-of-fit test in Matlab? (I am ideally looking for a script)

Dear Matlab community, I want to find the a continuous distribution that best fit my observed empirical data, therefore I woul...

mer än 9 år ago | 1 answer | 0