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Luis Jesús Olvera Lazcano


Last seen: 25 days ago |  Active since 2023

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What type of test does matlab use to obtain corr pvalue?
According to the documentation, the correlation pvalues indicate "If pval(a,b) is small (less than 0.05), then the correlation r...

6 months ago | 1 answer | 0

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answer

Question


How to transform data into wavenumber-frequency space?
Im trying to understand how to transform OLR netcdf data into wavenumber frequency space. I used before bandpass function, but t...

1 year ago | 1 answer | 0

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answer

Answered
How to measure phase speed in Hovmoller
My solution to obtain the phase speed of a wave in the OLR anomaly-field Hovmoller is as it follows: for x=2:3 caso1 = ...

1 year ago | 0

Answered
how to get variables from a netcdf file
In order to see the temperature variable, you will need to plot in an specified time. To find a specific date, it would be bette...

1 year ago | 0

Question


How to measure phase speed in Hovmoller
I have this Hovmoller plot of OLR anomalies with longitude x time, only showing the negative anomalies: I want to know if the...

1 year ago | 2 answers | 0

2

answers

Question


How to correctly do a Student Test for atmoshperic data
I've been having some troubles to understand how to do a ttest over my data. I have an OLR netcdf with dimensions 180 x 51 x 14...

1 year ago | 1 answer | 0

1

answer

Question


Quiver. Make wind scale of 1m/s inside plot
I have had a really tough time thinking of a way to show a scale of the wind vectors that Im plotting. Im using quiversc(lon,la...

1 year ago | 1 answer | 0

1

answer

Question


How to recenter east-west hemisphere in netcdf plot while conserving the coordinates?
Its been a long time since Ive been trying to figure this out. The thing is, matlab is not very good (at least with my current ...

1 year ago | 0 answers | 0

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answers

Question


Units for define max, min and sampling frequency
I have been using a bandpass for my netcdf data, to have 30-80 day frequency. Although Ive noticed until now that maybe Ive bee...

1 year ago | 1 answer | 0

1

answer

Question


Difference between bandpass function and butterwoth bandpass function
Hi So I've been using a bandpass filter over netcdf (OLR variable) data to extract only 30-80 days frequencies. The code has be...

1 year ago | 1 answer | 0

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answer

Question


Why colorbar label is always beyond the limits of the figure?
Im dealing with the problem in a subplot figure. I put only one colorbar for all the subplots, nevertheless, when I try to put t...

1 year ago | 2 answers | 0

2

answers

Question


How to use least square fit to 2D matrix data
I have a set of OLR data in longitude x time, giving a size of 180 x 31, being xaxis the longitude and y-axis lag time in days. ...

1 year ago | 1 answer | 0

1

answer

Question


Least square fit in Hovmöller
How would you do a least square fit onto hovmoller data, i.e. longitude x time. Specifically, considering only negative data Th...

1 year ago | 1 answer | 0

1

answer

Question


Cluster Analysis for 2D and 3D data
Hello I want to ask if you know how to do a cluster analysis for matrix data This particularly two classificate information fr...

1 year ago | 1 answer | 0

1

answer

Question


Colormap not showing properly
I used both cmocean and colormap for plots, and when I dont define the levels of the color (i.e. the quantity of colors) it disp...

1 year ago | 2 answers | 0

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answers