Luuk van Oosten

Last seen: 3年弱前 | 2014 年からアクティブ

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Professional Interests: Mass Spectrometry, Peptides & Proteins, High-throughput screening, Data mining.

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Error while using extractFeatures function
Hello, Could be multiple reasons why you get this error. Did you check this? It lists a couple of causes and solutions to your...

4年以上前 | 0

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Plot data arrays from loaded data structure file
Hello Shane Palmer, You are not the first one to encounter this problem. For approaches to solve your problem, have a look her...

4年以上前 | 0

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I am using findpeaks (data,locations) func to find time period of trigonometric function. Values(max,location) for only one peak are getting stored, hence time period is coming out to be zero. please help.
Dear Abhijeet, I am not sure what you mean with "hence time period is coming out to be zero", but I do believe I can be of som...

5年弱前 | 1

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How to plot as lines instead of dots
Dear shdotcom, Looks like you could use surf and mesh for that job. If you need it to plot it exactly as your example, keep ...

5年弱前 | 0

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How to resampling a signal (not interp1) which has a non-uniform sample frequency?
Sounds like a perfect job for msresample, so you can make two signals with the same sample rate to your liking. Use something li...

5年弱前 | 1

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Plot ECG and ABP together
You mean using two different y-axis for each signal like this?

5年弱前 | 0

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How can I extract data from a table and put it into a new one?
Beste Tessa, You almost wrote it yourself already, if I understand your problem correctly....? You already wrote in pseudocode ...

5年弱前 | 0

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Mapping between the probe set ID and the corresponding gene symbol
Dear Swarnambiga A, Hope this is not too late (and what you are looking for, I'm more into proteins...), but I'll give it a ...

5年弱前 | 1

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how to do ecg classifications
Dear Khouloud Daboussi, If you now have a big table with all your features (DWT, variance, mean, etc) and the myocardial inf...

5年弱前 | 0

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Change the Marker size and color in the legend of a scatter plot
To set the properties of your legend see here.

約5年前 | 0

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fastest way of amino acid composition feature extruction using matab? my codes are working fine but need a simplify it further
Although your question is poorly formulated, and I agree with Image Analyst about the formatting of your code.... Here is my a...

5年以上前 | 0

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How to remove a baseline without using sgolayfilt
As far as I know, sgolayfilt does not subtract the background signal (what I think you mean when you refer to 'same baseline'), ...

6年以上前 | 0

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how to split dna sequence into three letters each
Dear Aarsha mv, I assume you want to get the codons from your piece of DNA, but correct me if I am wrong. Let us take th...

7年弱前 | 1

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Can I use nwalign to align one sequence to the reverse-complement of a second sequence?
Dear Dan Allison, Wouldn't it be easier if you use the <https://www.mathworks.com/help/bioinfo/ref/oligoprop.html oligoprop ...

約7年前 | 1

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Is it possible to seqlinkage with a maximum parsimony or minimum evolution method?
Dear Anton Huegel, I am not really familiar with constructing phylogenetic trees in MATLAB, but I believe you could use the ...

約7年前 | 1

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Explicitly set BP/Pixel in Biological Sequence Viewer?
Dear David Roe, I am not really sure what you mean by 'the same scale', but I assume for now multiple aligned sequences... if...

約7年前 | 0

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Hello everybody, Iam Ram kumar. May i know how to calculate phi and psi angles with x,y,z co-ordinates from PDB files.. is there any formula to do ..?
Dear Ram Kumar, You could use <https://www.mathworks.com/help/bioinfo/ref/ramachandran.html Ramachandran>. If you do somethi...

7年以上前 | 3

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getgenbank function not working
Dear Aiden, This problem is probably due to some recent changes in the web protocol from the NCBI (see <https://www.ncbi.nlm...

7年以上前 | 1

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Train SVM through classification Learner
Dear Tahira Batool, The classificationLearner app is not able to import multiple variables from the workspace and work with ...

7年以上前 | 2

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How Matlab Classification Learner calculate a model accuracy
Dear Alessandro, Reproducible results can be obtained if one uses a <http://nl.mathworks.com/help/matlab/math/creating-and-c...

7年以上前 | 1

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I am new to programming. I need to build a decision tree to classify setosa (class =1 ) against combined virginca and versicolor (class = 2) in matlab
Dear Kunal, I think you will find all you need <https://www.mathworks.com/help/stats/examples/classification.html#zmw57dd0e3...

7年以上前 | 0

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Estmated time required for my following program
Dear Taher, How long such a programm will take to run depends on many things (both you hardware & your software). But... you...

7年以上前 | 1

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How to pre-process Next Generation Sequencing data using MATLAB?
Dear Ehsan, The page you refer to is a good start to get familiar with processing NGS data, but there are (a lot more!!) fun...

7年以上前 | 0

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Compare sequence alignments of datasets
Dear Raffael, This is possible in MATLAB. I suggest you have a look at <http://www.mathworks.com/help/bioinfo/sequence-alignm...

7年以上前 | 0

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I Have this scoring matrix, I want to change just the first column and row from zeros to 0, -2, -4, -6, -8 and so on. I don't know how to change it. any help please ??
Just to be sure: is the following what you are trying to do (just implemented for the first column though)? for i = 1:lengt...

7年以上前 | 0

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"Attempt to reference field of non-structure array" error when using Makemid Command
I'm not really sure, because your question does not give much specific information about your situation (such as the actual name...

7年以上前 | 0

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Can any1 please explain me what does X= 0.01 : 0.01 : 2; and li=30/72 meant in ECG signal generation using Fourier series work done by R.KARTHIK sir. Iam new in MATLAB.Its very urgent.
X= 0.01:0.01:2; means X-values vary from 0.01 to 2 with a step size of 0.01. So you end up with X being 200 values equall...

7年以上前 | 1

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IN NEED OF MATLAB CODE FOR ENVELOPE ANALYSIS.
Maybe have a look <https://www.mathworks.com/matlabcentral/fileexchange/?utf8=%25E2%259C%2593&term=envelope here>, could be a go...

7年以上前 | 0

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base line correction of a non uniformly spaced spectral data points
Dear Abdul Kalam, You could resample your non-uniform spaced spectral data to obtain uniform spaced spectral data. I am ...

7年以上前 | 1

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I am getting an error instruction when I rerun the Signal processing toolbox function 'resample' with a new vesion of Matlab 2016a that I have just installed? How do I ensure the toolbox in in the call pathway?
I think you will find your answer somewhere around <https://www.mathworks.com/matlabcentral/answers/5200-undefined-function-or-m...

7年以上前 | 0

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