Community Profile

photo

Christopher Creutzig


Last seen: Today

MathWorks

203 total contributions since 2011

Contact

Christopher Creutzig's Badges

  • First Review
  • 3 Month Streak
  • Revival Level 3
  • Knowledgeable Level 2
  • First Answer
  • Commenter
  • Promoter
  • Solver

View details...

Contributions in
View by

Answered
Extract exponent of term in symbolic expression?
I believe you are looking for polynomialDegree: >> polynomialDegree(expression,a) ans = 2

3 meses ago | 1

Answered
Symbolic: remove time dependency of variables or take derivative wrt time dependent variable
With your line syms alpha, you have overwritten the previous value of the MATLAB(!) variable alpha, so the alpha(t) in your subs...

4 meses ago | 0

Answered
Graphing a hyperbola and its tangent lines
Your tangent lines are very short, and you plot the hyperbola right on top of them. Change the order, increase the size, and the...

4 meses ago | 0

Answered
Help with displayFormula from symbolic math toolbox
Rendered formulas are only available in Live Editor, whether you use displayFormula or just have standard output. In Command Wi...

4 meses ago | 0

Answered
Live Script result S(sig1) and C(sig1)?
Those are fresnels and fresnelc. Hovering your mouse over the output will show the function names behind these rendered names, a...

4 meses ago | 1

Answered
text analytics toolbox and MeCab
Text Analytics Toolbox does not ship the tooling to compile an extended MeCab dictionary. But if you have one for your field (I ...

4 meses ago | 0

Answered
How to use word2vec with the documents
doc2sequence is actually the tool to use to run word2vec on a document, plus padding the output to a common length if desired – ...

4 meses ago | 0

Answered
partial word search text analytics toolbox
You could compute those words and then feed them into context: documents = tokenizedDocument(["A long winding road"; "The winds...

4 meses ago | 0

Answered
Text Analytics Toolbox seems making lots of mistakes on recognizing language and PartOfSpeech
Language detection also works very much better on longer text. It is not trying to do a dictionary lookup (and several of your w...

4 meses ago | 0

Answered
How to append abbreviations in Text Analytics Toolkit
You cannot extend the return value of abbreviations. But you can pass an extended table to addSentenceDetails in the "Abbreviati...

4 meses ago | 0

Answered
How was the exampleWordEmbedding example in the text analytics toolbox trained, in detail?
The embedding is rather low-dimensional (50 dimensions) and has a small vocabulary (with 9999 words). It is unlikely to be “high...

4 meses ago | 0

Answered
Script doesn't seem to be execute properly
In your code, you spend a lot of time computing the same prime over and over again. Do not start the search at a+1 for the secon...

más de 1 año ago | 3

Answered
Question on running fitlda
Gibbs sampling involves stochastic elements (i.e., a pseudorandom number generator), meaning reproducing exactly the results of ...

más de 1 año ago | 1

| accepted

Answered
Changing varibles in a Matrix to Values
Assigning values to MATLAB variables does not affect symbolic expressions that have variables of the same name inside. Use the s...

más de 1 año ago | 0

Answered
multivariable dsolve. Can it be solved for multivariables?
You are trying to solve a PDE (partial differential equation), but dsolve only handles ODEs (ordinary differential equations), w...

más de 1 año ago | 1

Answered
How to find mutual words in title field?
If I read the question correctly, you are looking for a co-occurence matrix. You can get those from a bag-of-Words model by a ma...

más de 1 año ago | 0

Answered
computing frequency*rank
Assuming we have t = topkwords(bag,100); You can get frequency*rank as: t.FreqTimesRank = (1:size(t,1)).*t.Count; And you ca...

más de 1 año ago | 0

| accepted

Answered
Does the text analytics toolbox allow users to test out-of-sample perplexity with LDA?
The second output of logp gives you the perplexity. txt = extractFileText('sonnets.txt'); sonnets = split(txt,[newline newline...

más de 1 año ago | 0

| accepted

Answered
Code for text mining through Bayes Classifier?
MathWorks has examples like this one using classifiers from the Statistics and Machine Learning Toolbox to work on text data. Th...

más de 1 año ago | 0

Answered
how to create a function that counts all words in a document?
Check out the bagOfWords class in Text Analytics Toolbox. It solves exactly this problem. (You may want to have some preprocess...

más de 1 año ago | 0

Answered
how to find most common words in text by matlab
Finding the most common words is easy with Text Analytics Toolbox: >> sonnets = extractFileText("sonnets.txt"); >> sonnets = e...

más de 1 año ago | 2

| accepted

Answered
How to fucntions like plot f(x,y) = 2 when 0<=x<=1 and 0<=y<=x
If the region to plot over were a simple 0 ≤ x ≤ 1 and 0 ≤ y ≤ 1, you could use |fimplicit(f(x,y) - 2, [0 1 0 1])|. I don't thin...

más de 2 años ago | 0

| accepted

Answered
Int vs Integral; Int giving wrong results
As the documentation says down in the “Tips” section, |int(f,1,S)| assumes that |1 ≤ S|. In that region, your input function is ...

más de 2 años ago | 1

Answered
measuring term frequency of words
See <https://www.mathworks.com/help/textanalytics/ref/bagofwords.html the |bagOfWords| documentation>. E.g., you can use the |tf...

más de 2 años ago | 0

| accepted

Solved


5th Time's a Charm
Write a function that will return the input value. However, your function must fail the first four times, only functioning prope...

más de 2 años ago

Solved


Sums of Distinct Powers
You will be given three numbers: base, nstart, and nend. Write a MATLAB script that will compute the sum of a sequence of both ...

más de 2 años ago

Solved


"Cody" * 5 == "CodyCodyCodyCodyCody"
*Alice*: What? *"Cody" * 5 == "CodyCodyCodyCodyCody"*? You've gotta be kidding me! *Bob*: No, I am serious! Python supports...

más de 2 años ago

Solved


Acid and water
&#9878; &#9878; &#9878; &#9878; &#9878; &#9878; &#9878; &#9878; Assume that there is a 100 liter tank. It is initially fi...

más de 2 años ago

Solved


Number of Even Elements in Fibonacci Sequence
Find how many even Fibonacci numbers are available in the first d numbers. Consider the following first 14 numbers 1 1 2...

más de 2 años ago

Solved


The 5th Root
Write a function to find the 5th root of a number. It sounds easy, but the typical functions are not allowed (see the test su...

más de 2 años ago

Load more