Edgar Guevara is currently a CONACYT research fellow at CIACYT-UASLP. His research areas are optical imaging, functional connectivity, spectroscopy and biomedical signal processing. His current research interests are in non-invasive medical diagnosis. His past work includes research in epilepsy, cardiovascular disease, spinal cord injury and white matter injury in newborns. He received his PhD degree in Biomedical Engineering at École Polytechnique de Montréal in 2014, with a special mention of the jury.

https://sites.google.com/site/edgarguevara/

Submitted

Implementation of the Vancouver Raman Algorithm

Implementation of the Vancouver Raman Algorithm

7 mesi ago | 10 downloads |

Submitted

Raman spectroscopy to screen diabetes mellitus

Raman spectroscopy is used non-invasively to screen diabetic patients, using ANN, PCA & SVM

7 mesi ago | 2 downloads |

Solved

Make a Palindrome Number

Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

7 mesi ago

Solved

Alphabetize by last name

Given a list of names in a cell array, sort the list by the last name. So if list = {'Barney Google','Snuffy Smith','Dagwood ...

7 mesi ago

Solved

Read a column of numbers and interpolate missing data

Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

7 mesi ago

Solved

Pizza order

A pizza order by phone in diameter d1, pizza will be make only in diameter d2. Return the pizza pieces p should be make.(pizza ...

9 mesi ago

Answered

how to display spectrogram of a audio in App Designer

Dear Austin, You need to specify which axes will be used for plotting, inside a callback for plotting such spectrogram, you m...

how to display spectrogram of a audio in App Designer

Dear Austin, You need to specify which axes will be used for plotting, inside a callback for plotting such spectrogram, you m...

9 mesi ago | 1

| accepted

Answered

i can't locate matlab2015\sys\os folder in matlab2015 and keep getting error [matlab has encountered an internal problem and needs to close 2015]

Try looking in your folder C:\Program Files\MATLAB\R2015\sys

i can't locate matlab2015\sys\os folder in matlab2015 and keep getting error [matlab has encountered an internal problem and needs to close 2015]

Try looking in your folder C:\Program Files\MATLAB\R2015\sys

9 mesi ago | 0

Solved

Find indices of diagonal elements

Given a matrix A and a diagonal index d (where 0 indicates the main diagonal and off-diagonals are identified by positive and n...

9 mesi ago

Solved

Return all matrix elements except elements on diagonal

Consider a given Matrix A=[a b c; d e f; g h i] then return a row vector T such that it contains all the El...

9 mesi ago

Solved

poll: would you like the regexp (?@cmd) functionality to be banned in Cody?

This problem is a poll (and a little bit of "white hat hacktivism" as well) regarding Cody users sentiment about the use of rege...

9 mesi ago

Solved

Flag largest magnitude swings as they occur

You have a phenomenon that produces strictly positive or negative results. delta = [1 -3 4 2 -1 6 -2 -7]; Marching thr...

9 mesi ago

Solved

Sum all integers from 1 to 2^n

Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

9 mesi ago

Solved

Solitaire Cipher

Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cipher>. Since this is from Wikipedia, I am capturin...

9 mesi ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

9 mesi ago

Solved

Find the biggest empty box

You are given a matrix that contains only ones and zeros. Think of the ones as columns in an otherwise empty floor plan. You wan...

9 mesi ago

Solved

Spot the outlier

All points except for one lie on a line. Which one is the outlier? Example: You are given a list of x-y pairs in a column ...

9 mesi ago

Solved

Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

9 mesi ago

Answered

Why isn't my line visible on this graph?

Hi lmhall, The circle should be defined as a function of a vector (small *t*), not the 2-Dgrid (capital *T*), so, pleace repl...

Why isn't my line visible on this graph?

Hi lmhall, The circle should be defined as a function of a vector (small *t*), not the 2-Dgrid (capital *T*), so, pleace repl...

oltre un anno ago | 0

Solved

How to subtract?

*± ± ± ± ± ± ± ± ± ± ±* * Imagine you need to subtract one...

oltre un anno ago

Submitted

Estimation of surface-enhanced Raman spectroscopy (SERS) enhancement factor

Estimates surface-enhanced Raman spectroscopy (SERS) enhancement factor.

circa 2 anni ago | 2 downloads |

Solved

Find a subset that divides the vector into equal halves

Given a vector x, return the indices to elements that will sum to exactly half of the sum of all elements. Example: Inpu...

circa 3 anni ago

Solved

Make a run-length companion vector

Given a vector x, return a vector r that indicates the run length of any value in x. Each element in r shows how many times the ...

circa 3 anni ago

Solved

Given a window, how many subsets of a vector sum positive

Given a vector: [1 0 -1 3 2 -3 1] and a window of 2, A sliding window would find: 1 + 0 = 1 0 - 1 = -1 ...

circa 3 anni ago

Solved

How many trades represent all the profit?

Given a list of results from trades made: [1 3 -4 2 -1 2 3] We can add them up to see this series of trades made a profit ...

circa 3 anni ago

Solved

Counting Money

Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...

circa 3 anni ago

Solved

Which doors are open?

There are n doors in an alley. Initially they are all shut. You have been tasked to go down the alley n times, and open/shut the...

circa 3 anni ago

Solved

De-dupe

Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...

circa 3 anni ago

Solved

Balanced number

Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

circa 3 anni ago

Solved

How long is the longest prime diagonal?

Stanislaw Ulam once observed that if the counting numbers are <http://en.wikipedia.org/wiki/Ulam_spiral arranged in a spiral>, t...

circa 3 anni ago