Question regarding data grid

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desert_scientist90 2019-10-22

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Hi I have a data set on a 0.5 grid, the dimension for x is 141, y is 71 and t is 38. I am trying to calculate the z score which I already did. I am trying to plot the the Z scores on a time series but since is greater than two dimensions is not possible to do it. Is there anyway to work around this without ruining the yearly data? Thanks in advance for your help

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darova 2019-10-22

Attach some example and data

desert_scientist90 2019-10-22

matlab-z.mat

val(:,:,1) =

Columns 1 through 8

0.8697 -0.2439 -0.4631 -0.2680 -0.2385 0.1420 0.0102 -1.0239

Columns 9 through 16

-1.1259 -1.5321 -1.5886 -1.8558 -1.9435 -1.7930 -2.1038 -2.2191

Columns 17 through 24

-1.9535 -2.0331 -2.0710 -1.0314 -0.1241 0.3457 0.9845 1.2666

Columns 25 through 32

1.1053 1.0737 1.1622 1.5579 1.6004 2.2580 1.0220 0.6942

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Cris LaPierre 2019-10-23

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The uploaded file contains a single variable with size 1x71x38. If that is correct, just use the squeeze function to remove the singleton dimension.

Z = squeeze(Z);

The new size of Z is 71x38.

From here you can create a line plot for each column

plot(Z)

or a 3D surface

surf(Z)

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desert_scientist90 2019-10-23

Cris LaPierre 2019-10-23

编辑：Cris LaPierre 2019-10-23

在 MATLAB Online 中打开

I'm pretty sure this plot was created using the code

plot(Z(:))

Here, the values of X represent the index of the data point. The command Z(:) turns the entire array into a one-column vector. You can see that syntax described in this doc page. What that means is all the columns were placed head-to-tail. There are 71*38 data points, or 2698.

desert_scientist90 2019-10-23

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I am trying to have one line for the 38 years which I got earlier but with the frequency which is 2698 instead of the years. When I was trying to do the plot the error message I was getting was that the vectors were not the same lenght. I am new to matlab i have spent hours trying to get this graph right. But I guess thats part of the process of learning to use something new.

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Cris LaPierre 2019-10-23

Yes, learning requires some practice. If you are brand new, have you gone through MATLAB Onramp? It might help introduce you in a guided, incremental way.