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Ronan


28 total contributions since 2015

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Question


Solve using trig identity?
Is it possible to solve the following using trigonometry identities? sqrt((-3+4cos(w))^2) Alternatively sqrt((1-4/3cos...

mer än 4 år ago | 0 answers | 0

0

answers

Question


Is it possible to show the x,y axis values for an image?
I m trying to use an image from matlab in a paper, but I want to show the x,y axis. However when you use imshow(myImage); it doe...

mer än 4 år ago | 1 answer | 0

1

answer

Question


Use the return value of of the function lscov for weighted least squares?
After looking at the matlab example using the function lscov for the weighted least squares type, I was trying to use the return...

ungefär 5 år ago | 1 answer | 0

1

answer

Question


Can someone explain how the mean and standard deviation are defined for normpdf from the following matlab example?
I m looking at the following example, http://fr.mathworks.com/help/stats/examples/bayesian-analysis-for-a-logistic-regression-m...

ungefär 5 år ago | 1 answer | 1

1

answer

Question


If I have a set of values and I identify the probabiltiy density function, how do I get the smallest distance from a set of distances that correspond to those values?
the_values = [200,215,250,350,400,450,550,650,750]; dist_1 = [10,20,30,40,50,60,70,80,90,100]; M = mean(the_valu...

mer än 5 år ago | 0 answers | 0

0

answers

Question


Get the minimum residual and the minimum distance in terms of the x axis using solver functions?
I have a set of linear data and I used regression to best fit the data. I m trying to identify the data point that has the small...

mer än 5 år ago | 0 answers | 0

0

answers

Question


The most likely point closest to best fit line?
So I m using regression to best fit a plot of data. Each data point is represented by distance and value. If the residuals are d...

mer än 5 år ago | 1 answer | 0

1

answer

Question


Identify highest probability in regression analysis?
I was studying the matlab example for logistic regression linked below and under the heading "Evaluating the Model Predictions" ...

mer än 5 år ago | 0 answers | 0

0

answers

Question


Search data in cell array from disk?
So I v got a cell array saved as a .mat file. I have been loading this into ram and using this cell array but I have been having...

mer än 5 år ago | 1 answer | 0

1

answer

Question


Probability using binomial probability?
Suppose I have a field of points, where I want to find the most likely location of a point. If I have 400 points then obviously ...

mer än 5 år ago | 2 answers | 0

2

answers

Question


Generate a mathematical funciton from a graph or raw data?
I m used to using mathematical functions however if I want to describe raw data as a mathematical function I m not really sure w...

mer än 5 år ago | 1 answer | 0

1

answer

Question


Sort one set of data to correspond to another.
Say I have an ordered set of data. a = [100,200,300,400,500]; And say I have another set of data, b = [300,200,500,40...

mer än 5 år ago | 3 answers | 0

3

answers

Question


Get the common lowest values of 2 datasets?
I have 2 datasets, a = [ 6.7082 5.3852 3.0000 4.1231 3.1623 7.0711 4.0000 1.0000 1.0000 5.0990 ...

mer än 5 år ago | 1 answer | 0

1

answer

Question


Change the timer of fopen for a tcp/ip object?
I m trying to connect to a dynamic ip address so I m guessing a range of ip addresses by iterating through a range. So basically...

mer än 5 år ago | 0 answers | 0

0

answers

Question


Auto connect to a wifi module from matlab?
So I have a wifi module that uses a static IP address to connect to matlab using the TCP/IP toolbox. However it is desirable for...

mer än 5 år ago | 0 answers | 0

0

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Answered
When you dilate and erode a binary image of a skeleton does the skeleton keep its proportion?
So I think I v found a way to do it. Its working for now, but still have to test it out on a bigger scale. So what i did was the...

mer än 5 år ago | 0

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Question


Find unique rows comparing 2 colums?
% code a = [1,200,400; 2,222,410; 3,300,409; 4, 90, 100; 5, 320, 420; 6, 200, 400; 7, 2...

mer än 5 år ago | 1 answer | 0

1

answer

Question


When you dilate and erode a binary image of a skeleton does the skeleton keep its proportion?
I have subtracted a pixel off the ends of a skeleton on a binary image. To get the skeleton back to the way it originally was I ...

mer än 5 år ago | 3 answers | 0

3

answers

Question


Know which branchpoints are connected to other branchpoints?
If I get a skeleton of a binary image and return the branchpoints I want to know which ones are connected to which. eg if I have...

mer än 5 år ago | 0 answers | 0

0

answers

Question


Find branches in a skeleton?
When you make a skeleton from a binary image you can extract branch points. However I m trying to find out which branch points a...

mer än 5 år ago | 1 answer | 0

1

answer

Question


Sort the order of branch points to the end points of a binary skeleton image?
So I m trying to order the branch points to the end points from start to end that are extracted from a skeleton binary image. Wh...

mer än 5 år ago | 0 answers | 0

0

answers

Question


im2graph, Maximum variable size allowed by the program is exceeded?
I m trying to run the dijkstra algorithm for shortest path for an image. Many of the dijkstra examples available use graphs. And...

mer än 5 år ago | 0 answers | 0

0

answers

Question


Is it possible to thicken lines of a binary image without thickening the ends?
I m trying to thicken white lines on a binary image using the function bwmorph(myImage, 'thicken') however when the end...

mer än 5 år ago | 1 answer | 0

1

answer

Question


Express the sum of squares as a percentage of how well two signals match?
So I am using matlab to compare two signals using the sum of squares. So I assume the best possible match will be zero. eg ∑(y2−...

mer än 5 år ago | 1 answer | 0

1

answer

Question


Read a split integer in matlab sent over TCP?
So i m sending an integer over tcp using arduinos Serial.write() function. This function can only write 1 byte at a time meaning...

nästan 6 år ago | 1 answer | 0

1

answer

Question


How do i define a signal from 2 sets of data or two row vectors?
So this seems like a basic question. I have a vector for x values and a vector for y values and i want to use this as a signal/f...

nästan 6 år ago | 1 answer | 0

1

answer

Question


Tell the format of bytes sent via tcp?
I m sending a number of integers wirelessly to matlab and I want to know when its finished. So i have been using the code while(...

nästan 6 år ago | 2 answers | 0

2

answers

Question


Should the best cross correlation value be the larger or smaller?
If i use the xcorr function to get the max cross correlation of signal s1 compared to s2 and then i compare the cross correlatio...

ungefär 6 år ago | 1 answer | 0

1

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