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David Craig


10 total contributions since 2011

Professional Interests: Earth sciences

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Question


Using contourf with 1D data
Hi, I need to plot data in a polar projection using something like contourf. I have three 1D vectors something like as follows:...

7 years ago | 1 answer | 0

1

answer

Question


how to f-k filter
Hi, I have time-space data from several stations in a linear array. I want to look at the data in the frequency-wavenumber (f-k...

7 years ago | 1 answer | 0

1

answer

Question


pcolor question
Hi, I have two variables that both depend on a third. Something like, x1=z1, x2=z2, x3=z3 and y1=z2, y2=z3, y3=z1. I would l...

7 years ago | 0 answers | 0

0

answers

Answered
How to remove leverage from data.
Have made some progress, I can find the outliers but not remove them, Stats = regstats(data1,data1,'linear') qqplot(Stats...

7 years ago | 0

Question


How to remove leverage from data.
Hi, I am comparing two data sets and examining some statistics using 'regstats'. My code goes something like, Stats = r...

7 years ago | 1 answer | 0

1

answer

Question


Running mean normalization
Hi, I am trying to normalize a time series by using a running mean. It should compute the running average of the absolute value ...

8 years ago | 0 answers | 0

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answers

Question


How do I make a scatter plot with color being related to the data?
I am trying to produce a 2d scatter plot where the color of the dots is related to a third variable. Are there commands to do t...

8 years ago | 1 answer | 0

1

answer

Question


Julian time and seconds
Hi, I'm working with two time series with the time specified in Julian time. I need to work out the difference between the start...

8 years ago | 1 answer | 0

1

answer

Question


Error from xcorr
Hi, I'm trying to correlate a sample from one signal to another signal using the xcorr function as so, xcorr(VAL_DF(i1:i2),CA...

8 years ago | 1 answer | 0

1

answer

Question


multiple function outputs
hi i am working through an online tutorial and having trouble with the following function, function [summ,prodd] = sumprod(x...

8 years ago | 2 answers | 1

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answers