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Stefan


Lehigh University

Active since 2011

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Question


Plot the magnitude response of a Butterworth filter with linear magnitude
Hi, I'm using a Butterworth filter to attenuate one of two frequency components in a signal, like so: http://i.imgur.com/D...

mer än 9 år ago | 1 answer | 0

1

answer

Question


My butterworth filter isn't preventing aliasing
Hi all, I recently read this guide to aliasing here: http://www.mstarlabs.com/dsp/antialiasing/antial.html And I wanted...

mer än 9 år ago | 0 answers | 0

0

answers

Question


Calculate how often a 1 turns into a 0 or 1, and vice versa
Hi all, I've got some data that characterize two possible states and stored in an array (1s and 0s), and there are 8 repetiti...

mer än 10 år ago | 4 answers | 0

4

answers

Question


I'd like to force my exponential fit to start at [0 0]
So, I've got some noisy data. When averaged, the data fit nicely along a double exponential fit, starting off with with a po...

mer än 11 år ago | 1 answer | 0

1

answer

Question


I'd like to force my exponential fit to start at [0 0]
So, I've got some noisy data. When averaged, the data fit nicely along a double exponential fit, starting off with with a positi...

mer än 11 år ago | 0 answers | 0

0

answers

Question


I want to calculate event frequency with a moving average, i have event times
Hi all, I have a list of the time points of events over 30 seconds, and I want to graph the frequency of events with a moving...

nästan 13 år ago | 1 answer | 0

1

answer

Question


I have current vs. time, I want to graph total charge vs. time
Hi all, So I have a dataset of electric current (y) vs. time (t), recorded at 20kHz. The range of t is 4ms. Plot(t,y) shows the...

ungefär 13 år ago | 1 answer | 0

1

answer

Question


Double sigmoid fit
Hi, I have bell-shaped data that I'd like to fit. Publications with related data use a "fit to the Boltzman equation." I imagin...

mer än 13 år ago | 1 answer | 0

1

answer

Question


Printing function results to the Workspace
So I have a simple function function range(x,y) %Finds the range between x and y y-x When I run the function, I would like ...

mer än 13 år ago | 2 answers | 0

2

answers

Answered
Taking the derivative of an Action Potential to find the inflection point
Thanks for the response! I've gotten MATLAB to define dy. Both y and t are (301x1 double), however dy comes out as (300x1 double...

mer än 13 år ago | 0

| accepted

Question


Taking the derivative of an Action Potential to find the inflection point
Hello, MATLAB newbie here, please go easy on me. I need to determine the slope of a membrane depolarization before the marked i...

mer än 13 år ago | 3 answers | 0

3

answers