# Sam Hurrell

Last seen: 4 days ago Active since 2020

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How to customise Polar Plots - Part 2
Following on from a question I had a year ago (How to customise Polar Plots - MATLAB Answers - MATLAB Central (mathworks.com)), ...

4 months ago | 1 answer | 0

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Question

How to smoothly interpolate signal data using another datasets timestepping
I have 2 datasets (data1 and data2), each with a time column with different timesteps (data2 always has the larger step size) fr...

6 months ago | 1 answer | 0

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Question

How to customise Polar Plots
I have data typically graphed as 'value (B) against angle (A)' as a plot (for angles -90 to 90) that I wish to graph as a polar ...

1 year ago | 2 answers | 0

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Use data array with specific names
I have multiple data arrays imported to the workspace with similar names that differ only by number (eg. data15, data20,...data9...

1 year ago | 1 answer | 0

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Question

Correlation of similar Signals
I have 2 signals on the same time axis: an ideal signal and the actual signal received. I have used the 'xcorr' function for the...

2 years ago | 1 answer | 0

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Question

Inverse FFT for Signal Components
I have a signal with 2 known frequencies present and I wish to extract and graph each frequency as its own signal. I have put th...

2 years ago | 1 answer | 0

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Question

For loop skipping with if statement
I have a 'for loop' designed to go through graph data (col1 = time, col2 = y), with an 'if statement' so if it finds a value equ...

2 years ago | 2 answers | 0

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Question

Correlate Signals with different time points
I have two datasets (simulation and experimental) with normalised amplitudes, and I need to find a correlation coefficient for t...

2 years ago | 1 answer | 0

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Question

Filter signal with 2 different frequencies
I have an equation which gives 2 gaussian-sinc pulses of different frequencies, in dataset wrt time (t = 0:0.001:100). When put ...

2 years ago | 1 answer | 0

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Question

Filter data through a bandpass FIR
I have multiple sets of data, all with the same timesteps, sample size of 4000, and sampling frequency (Fs) of 50MHz but differe...

2 years ago | 1 answer | 0

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Question

Use fprintf name of array within the script
I am trying to find the sizes of many arrays, named "d25a%d" for %d values of 16:1:20. I'm using a for loop with f equal to thes...

2 years ago | 2 answers | 0

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Question

Filter Sound from Data
I have frequency-based data sets (with column 1 for time and column 2 for amplitude), and I use the following code to filter out...

2 years ago | 2 answers | 0

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Question

Saving workspace via command
I have written code to produce 30 (approx) numeric matrices, all of which I wish to save to a given directory under a single .ma...

3 years ago | 1 answer | 0

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Question

How can I use the same script for multiple different matrix arrays at once?
I have matrix arrays of values labelled: Y00, Y01.....Y24, Y25. With each array, I want to take the largest value and its row lo...

3 years ago | 1 answer | 0

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Question

plot 2D matrix data
I have a numeric matrix array, with column 1 containing the x coordinate, column 2 containing the y coordinate, and column 3 con...

3 years ago | 2 answers | 0

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Question

How can I extract exact values from a single column of a matrix?
The matrix in question has x, y, z coordinates in its first 3 columns respectively. I tried using a for-loop to go through the m...

3 years ago | 1 answer | 0

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Question

Input txt. file of complex numbers
I have large data text files from COMSOL that contain multiple rows and columns of complex numbers. I have tried importing them ...

3 years ago | 1 answer | 0