Paul Fishback

Grand Valley State University

Active since 2012

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Professor of Mathematics
Grand Valley State University
Allendale, Michigan
Professional Interests: optimization; support vector machines

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Looking for an efficient way of finding elements in a cell array of character vectors
Thanks very much. The ismember will return a logical array. If I tack on the find command, I get the desired indices as well: f...

mer än 6 år ago | 0

Question

Looking for an efficient way of finding elements in a cell array of character vectors
I have a cell array of character vectors, named "Channels", in which each entry corresponds a particular EEG channel label. I'd ...

mer än 6 år ago | 2 answers | 0

2

answers

Question

Error message when plotting network graph in 2018a
I'm having a problem creating a simple network graph from a symmetric adjacency matrix. A=[0,1,1,0,0;1,0,1,0,0;1,1,0,1,1...

mer än 6 år ago | 2 answers | 0

2

answers

Question

digraph plot bug in 2018a?
I've tried creating and plotting a simple digraph as follows: G = digraph([1 1], [2 3]); e = G.Edges; G = addedge(G,2,3...

nästan 7 år ago | 1 answer | 0

1

answer

Answered
Sendmail and attaching images
Thank you so much. Am I correct that your code prompts the use to specify the attachment directory, as described below the line ...

ungefär 7 år ago | 0

| accepted

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Sendmail and attaching images
I'm encountering a problem when using sendmail to include an image attachment. I have sendmail set up so that it works. When I h...

ungefär 7 år ago | 3 answers | 0

3

answers

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How do I extract a portion of a string after a prescribed symbol?
I have a string of the form mystring='C\users\me\data\mymatrix.mat' What operation will permit me to create the string con...

ungefär 8 år ago | 1 answer | 0

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answer

Question

How to find occurrences of a vector of strings in a cell string.
I have a cell string, named Channels, that lists 69 distinct EEG channels, A1, A2, ... To find an occurrence of a particular ...

ungefär 8 år ago | 1 answer | 0

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answer

Question

How do I enumerate a family of 0-1 matrices
I'm trying to generate the family of all 10-by-3 matrices, where each matrix in the family, call it S, has the property that S(i...

nästan 9 år ago | 0 answers | 0

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answers

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How do I apply a multiple comparison method to linear mixed effect model results?
I have a data file (available for download at http://www.bodowinter.com/tutorial/politeness_data.csv and based upon the research...

ungefär 9 år ago | 2 answers | 0

2

answers

Question

How to combine linear mixed model results across different test subjects?
Suppose I have three test subjects and for each I have collected data and formulated a linear mixed-effects model using fitlme. ...

ungefär 9 år ago | 0 answers | 0

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ungefär 9 år ago | 0 answers | 0

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What is the best way to create and implement a Kaiser bandpass filter subject to certain specified conditions?
I'm trying to create and implement a 100-300 Hz bandpass filter as described in a signal processing research article. Specifical...

ungefär 9 år ago | 1 answer | 0

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answer

Question

How can I find multiple strings in a cell array?
I have a cell array of strings, called Channels, each containing an EEG channel label, e.g. 'A1', 'A2', ...., I'd like to fi...

mer än 9 år ago | 2 answers | 1

2

answers

Question

Using the "find" command with arrays of cells
I have 91-by-1 cell array, named "Channels," in my workspace whose entries correspond to EEG channels. For example, Channels{...

nästan 10 år ago | 1 answer | 0

1

answer

Question

4-D Matrix Indices Corresponding to an Entry Inequality
I have a 4-dim matrix, A, of size say 10-by-10-by-200-by-30. I would like to find all 4-tuples [i,j,f,t] for which A(i,j,f,t...

ungefär 10 år ago | 1 answer | 0

1

answer

Question

How do I convert a cell array of char to a single plot title?
I have a 3-by-1 cell, call it "labels," each of whose entries is a char. For example, labels{1,1}=A1,A2,A3 labels{2,1}=B1,B2,B...

ungefär 10 år ago | 1 answer | 0

1

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Building mex files on Mac Yosemite OSX.
I have some .C files associated with a toolbox I recently downloaded. My C compiler is XCode 6.2 and I'm running Yosemite OS 10....

mer än 10 år ago | 1 answer | 0

1

answer

Question

Axes resolution problems using VideoWriter
I'm facing some issues trying to improve the resolution of graph axes when creating an .avi file. Each frame in the file consist...

mer än 10 år ago | 0 answers | 1

0

answers

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Converting matrix entries satisfying a threshold condition.
I have a matrix of numeric entries and wish to convert each entry above a specified threshold to one and all other entries to ze...

mer än 10 år ago | 1 answer | 0

1

answer

Answered
Plotting tool for weighted digraphs
Thanks so much. I just tried out the gplotcolor.m and feel it shouldn't be too hard to visually convey the weight magnitudes by ...

mer än 10 år ago | 0

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Plotting tool for weighted digraphs
I'm looking a tool to plot a weighted, directed graph, specifically one represented by a 44-by-44 matrix having nonnegative entr...

mer än 10 år ago | 3 answers | 0

3

answers

Question

How to compute the Instantaneous Power Spectrum ???
I'm looking for a means of computing the *instantaneous* *power spectrum* (IPS) of a signal, as described in the master's thesis...

nästan 11 år ago | 0 answers | 0

0

answers

Question

Determining indices upon which a sequence of real numbers is convex
I have a vector, X, of real numbers which has a minimum at index k, where 1<k<n. I want to determine the smallest index k1 an...

ungefär 11 år ago | 1 answer | 1

1

answer

Question

Colormap with Image command
I'm trying to plot intensity levels from an 8-by-8 matrix A whose values vary from 0 to 1. As a start, I entered the following, ...

mer än 11 år ago | 1 answer | 0

1

answer

Question

Plotting time-course of matrix entries
I have a matrix with real-valued, nonnegative entries. For entry (i,j), I wish to plot a filled circle at the point (i,j) whose ...

mer än 11 år ago | 1 answer | 0

1

answer

Question

Averaging values in rank orderings with repeats
I'm wondering if there is a straightforward way for me to complete the following task. Suppose u=[1,3,2,2,4,7,2,5] and I wish...

nästan 12 år ago | 1 answer | 0

1

answer

Question

Does anyone know of a simple script for performing the Hinkley-Page Cumulative Sum Algorithm?
I'm looking for a basic implementation of the Hinkley-Page Cumulative Sum Algorithm ('CUSUM') for automatic detection of change ...

ungefär 12 år ago | 0 answers | 0

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answers

Question

Syntax for Computing the Complex Morlet Wavelet of a Discrete Signal
I'm trying to find the easiest way to compute the complex continuous Morlet transform of a discrete signal. If x is my signal, I...

mer än 12 år ago | 0 answers | 0

0

answers

Question

Computing the Spectral Density Matrix of a Multivariate Time Series
I'm fairly new to signal processing, and I have a multivariate time series whose spectral density matrix I wish to compute using...

mer än 12 år ago | 0 answers | 1

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