geoplot(lat,lon) command error

I am trying to plot a buoy trajectory profile across the ocean surface. I have the trajectory data in an NC file that I have uploaded to MATLAB however it seems as if my geoplot command is connecting my points vertically in the water column (the buoy collects data as deep as 2,000m as it rises to the surface) instead of the buoys breaching points along the surface. I was able to create a red line running through the points once, but never again. The command I have been using after I upload the file to MATLAB is:

lat=ncread(filename,'LATITUDE')
lon=ncread(filename,'LONGITUDE')
geoplot(lat,lon,'r','LineWidth',2)
geobasemap('landcover')

I attached the pictures as a reference so that hopefully someone can understand what my issue is. I added the arrows and numbers to the map with the solid red line as a guide to the buoy trajector after the map was created. I am also confused at how I was able to do it once but not again while using the same commands.

How can I recreate the map that has the solid line running through the points?

[VICTOR ALMEIDA]

The second picture was cut off so here it is. I am only able to create this map now, with individual points instead of them being connected by a solid line like in the other map.

[KSSV]

You canuse plot striaght away right?

[VICTOR ALMEIDA]

I can use just the plot command yes, but then I can't add a geobasemap. The error message says:

"Unable to use geobasemap. Current axes or chart is not geographic."

The points are also not connected when I use just the plot command, they just show up on a white background. I think it may be something with 'lat' and 'lon' because when I replace them with actual numbers for coordinates I get a red line. But, that red line is just connecting two points. Two locations somewhere on the planet with the coordinates I put in the brackets (as if you were connecting two cities) and not the coordinates that are already in the trajectory NC file that I need to use.

[KSSV]

First use geobasemap and then try plot using hold on.

[VICTOR ALMEIDA]

It gave me an error message that says:

"Adding Cartesian plot to geoaxes is not supported"

Doing hold on and then geoplot also gave me the same result with just individual points.

Answer 1

[VICTOR ALMEIDA]

Deleting all of the NaN values in relation to the latitude and longitude data and running the commands again worked!

Answer 2

[KSSV]

Try:

geoplot(lat,lon,'r-','LineWidth',2)

[VICTOR ALMEIDA]

I am still getting just the points after switching it to 'r-'

[KSSV]

Share the poins alone here.

[VICTOR ALMEIDA]

This was what I got when I tried:

geoplot(lat,lon,'r-','LineWidth',2)