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Alex Backer


Last seen: 2 months ago

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8 total contributions since 2020

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Answered
how to make trendline in matlab using polyfit command?
https://www.mathworks.com/matlabcentral/fileexchange/76467-trendline

6 months ago | 0

Submitted


trendline
Plots a linear trendline in current figure.

6 months ago | 36 downloads |

Submitted


xcorrpvalue
Yields p value of the max absolute value of a cross correlation

7 months ago | 8 downloads |

Answered
how to calculate significance value of lag correlation?
I wrote some code to estimate the p-value empirically: Alex Backer (2020). xcorrpvalue (https://www.mathworks.com/matlabcentral...

7 months ago | 0

Answered
significance levels of cross correlations
I wrote some code to estimate the p-value empirically: Alex Backer (2020). xcorrpvalue (https://www.mathworks.com/matlabcentral...

7 months ago | 0

Answered
level of significance using xcorr
I wrote some code to estimate the p-value empirically: Alex Backer (2020). xcorrpvalue (https://www.mathworks.com/matlabcentral...

7 months ago | 0

Answered
P-value of cross-correlation
I found Jeff's code above was giving me p-values that seemed too low, even for random series, so I wrote some code to estimate t...

7 months ago | 0

Answered
Why do I get the error "Undefined function or variable"?
This happened to me with mean and median when I indvertently called it mean(variable,:) instead of mean(variable,1).

7 months ago | 0