Mateusz

Attivo dal 2011

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How to read all lines in txt file satisfying some condition
Let's assume we have the following format in the file: 1 str1 0 str2 1 str3 ... that is in each line we have: the first c...

circa 12 anni fa | 1 risposta | 0

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Domanda

Is it possible to recover from the Matlab Segmentation Fault error?
Is it possible to recover from the Matlab Segmentation Fault error from the Matlab source code? More precisely I am talking a...

circa 12 anni fa | 1 risposta | 0

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Domanda

Visualization of the legend outside of the image
Hi, I am using the following code to visualize the image with legend: currImg = imread(imagePath); fig = figure('...

circa 12 anni fa | 1 risposta | 0

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Domanda

Is there faster way of computing loop; max(w .* x); pool; ?
Let's assume I have a matrix x \in R[#features, #data] and matrix w \in R[#units, #features]. Currently I am computing max per u...

quasi 13 anni fa | 1 risposta | 0

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Domanda

How to check the current line (debug)
I often use 'keyboard' command to debug my programs (since sometimes I have to use command line and matlab -nodisplay setup). Wh...

oltre 13 anni fa | 2 risposte | 0

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Domanda

compilation using matlab and bash scripting
I have a bash script where I invoke the matlab compiler with some arguments, that is mcc ${MCC_ARGUMENTS}. Now I would like to ...

oltre 13 anni fa | 1 risposta | 0

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Domanda

Finding indices when vectors is used
Assume we have x = [1,2,3,1]; If I execute idx = find(x == 1) then idx == [1,4]. Is there similar command for extracting...

oltre 13 anni fa | 1 risposta | 0

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Domanda

Concatenation in Matlab (with or without copying elements)
Assume we have X = [A, B] where A and B are two vectors (or matrices). Is concatenation operation copies elements in A? If so is...

quasi 14 anni fa | 2 risposte | 1

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Domanda

mex etymology and prononcuation
What is the meaning of mex (where does it come from)? What is correct pronunciation? In particular the last letter is English 'x...

quasi 14 anni fa | 1 risposta | 1

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Domanda

Difference between adding and including (MCC)
What is difference between adding (option -a) and including (option -I) folder to the working path during compilation (MCC)? ...

quasi 14 anni fa | 0 risposte | 0

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Domanda

Fast multiplication of rows of one matrix and columns of the second matrix
I would like to compute v(k) = A(k, :)* B(:, k) as fast as possible (no-loops). Currently, I am doing diag(A * B) but it h...

circa 14 anni fa | 2 risposte | 0

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Domanda

Fast function application
Hi, Let a be n-dimensional vector, B n-by-n dimensional matrix, f(a, b) - binary function that operates on two vectors, and r...

circa 14 anni fa | 1 risposta | 0

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Domanda

Optimization with respect to matrix
Hi, I have the following problem to solve: argmin_X |||| Xu - b ||||^2 where u and b are given (vectors), and |||| . |||| is l...

circa 14 anni fa | 1 risposta | 0

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Domanda

mcc and startup
Hi, In startup.m in my home directory I use addpath to include additional libraries. Now I would like to compile some source ...

circa 14 anni fa | 1 risposta | 0

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Domanda

How to deal with the problem of the changing size data?
I have the following code: im = {}; k = 0 while not_end(): im = {im{:}, dir(filepath, fileArray(k))}; k = k + 1...

circa 14 anni fa | 1 risposta | 0

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Domanda

How to get data from figures produced by errorbars?
I have a figure which was produced by using errorbars command. It plots the mean data and corresponding error bars. Now I woul...

oltre 14 anni fa | 1 risposta | 0

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Domanda

Merging two figures
I have two figures with different plots. I would like to merge them into one figure that contains both plots and with keeping th...

oltre 14 anni fa | 4 risposte | 2

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Domanda

Draw the minimal value from the plot
Let assume we have plot of some function (actually we have plot of the function-values at some sample points). Is it possible to...

oltre 14 anni fa | 1 risposta | 0

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