# Luis Jesús Olvera Lazcano

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Question

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...

21 days ago | 1 answer | 0

### 1

answerQuestion

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...

8 months ago | 1 answer | 0

### 1

answerHow 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 = ...

8 months ago | 0

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...

9 months 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...

9 months ago | 2 answers | 0

### 2

answersQuestion

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...

9 months ago | 1 answer | 0

### 1

answerQuestion

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...

9 months ago | 1 answer | 0

### 1

answerQuestion

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 ...

9 months ago | 0 answers | 0

### 0

answersQuestion

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...

9 months ago | 1 answer | 0

### 1

answerQuestion

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...

9 months ago | 1 answer | 0

### 1

answerQuestion

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...

9 months ago | 2 answers | 0

### 2

answersQuestion

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. ...

10 months ago | 1 answer | 0

### 1

answerQuestion

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...

10 months ago | 1 answer | 0

### 1

answerQuestion

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...

12 months ago | 1 answer | 0

### 1

answerQuestion

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