Mapping Toolbox

nanm

Create data grids containing NaNs

Syntax

map = nanm(latlim,lonlim,scale) returns a regular data grid consisting entirely of NaNs. The two-element vectors latlim and lonlim define the latitude and longitude limits of the geographic region. They should be of the form [north south] and [east west], respectively. The number of rows and columns per angle unit is set by the scalar value scale.

[map,refvec] = nanm(latlim,lonlim,scale) returns the three-element referencing vector for the returned map.

Example

• [map,refvec] = nanm([46,51],[-79,-75],1)
  map =
     NaN   NaN   NaN   NaN
     NaN   NaN   NaN   NaN
     NaN   NaN   NaN   NaN
     NaN   NaN   NaN   NaN
     NaN   NaN   NaN   NaN
  refvec =
       1    51   -79
  

See Also

limitm	Data grid limits
onem	Create a data grid of ones
sizem	Row and column dimensions needed for map
spzerom	Create a sparse data grid of zeros
zerom	Create a full data grid of zeros

nanclip

navfix