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Luis Jesús Olvera Lazcano


Last seen: alrededor de 1 mes hace |  Con actividad desde 2023

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Estadística

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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...

alrededor de 2 meses hace | 1 respuesta | 0

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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...

9 meses hace | 1 respuesta | 0

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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 = ...

9 meses hace | 0

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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...

10 meses hace | 0

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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...

10 meses hace | 2 respuestas | 0

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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...

10 meses hace | 1 respuesta | 0

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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...

10 meses hace | 1 respuesta | 0

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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 ...

10 meses hace | 0 respuestas | 0

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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...

10 meses hace | 1 respuesta | 0

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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...

10 meses hace | 1 respuesta | 0

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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...

11 meses hace | 2 respuestas | 0

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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. ...

11 meses hace | 1 respuesta | 0

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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...

11 meses hace | 1 respuesta | 0

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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...

alrededor de 1 año hace | 1 respuesta | 0

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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...

alrededor de 1 año hace | 2 respuestas | 0

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