How to plot 4d data?

for each (x,y,z) coordinate point there is a unique value I need to plot.So,its like a voulmetric visualisation of data.Take the data below for example.

x [nm] y [nm] z [nm] weight [kg]

--------------------------------------------------------------

-400 1975 -3000 8.06289e+013

-360 1975 -3000 2.23969e+014

-320 1975 -3000 3.67308e+014

-280 1975 -3000 5.10648e+014

-240 1975 -3000 6.53987e+014

-200 1975 -3000 7.44523e+014

-160 1975 -3000 7.91981e+014

-120 1975 -3000 8.39439e+014

-80 1975 -3000 8.86898e+014

-40 1975 -3000 9.34356e+014

0 1975 -3000 9.81814e+014

40 1975 -3000 9.47209e+014

80 1975 -3000 8.99751e+014

120 1975 -3000 8.52293e+014

160 1975 -3000 8.04834e+014

200 1975 -3000 7.57376e+014

240 1975 -3000 6.92808e+014

280 1975 -3000 5.49468e+014

320 1975 -3000 4.06129e+014

360 1975 -3000 2.62789e+014

400 1975 -3000 1.1945e+014

-400 1976 -3000 1.81237e+014

-360 1976 -3000 3.15783e+014

-320 1976 -3000 3.94467e+014

-280 1976 -3000 4.74098e+014

-240 1976 -3000 5.48437e+014

-200 1976 -3000 6.15305e+014

-160 1976 -3000 6.73419e+014

-120 1976 -3000 7.20603e+014

-80 1976 -3000 7.54657e+014

-40 1976 -3000 7.75999e+014

0 1976 -3000 7.84036e+014

40 1976 -3000 7.75999e+014

80 1976 -3000 7.54657e+014

120 1976 -3000 7.20603e+014

160 1976 -3000 6.73419e+014

200 1976 -3000 6.15305e+014

240 1976 -3000 5.48437e+014

280 1976 -3000 4.74099e+014

320 1976 -3000 3.94467e+014

360 1976 -3000 3.15783e+014

400 1976 -3000 1.81237e+014

-400 1977 -3000 1.80061e+014

-360 1977 -3000 3.13735e+014

-320 1977 -3000 3.91908e+014

-280 1977 -3000 4.71023e+014

-240 1977 -3000 5.44879e+014

-200 1977 -3000 6.11313e+014

-160 1977 -3000 6.6905e+014

-120 1977 -3000 7.15928e+014

-80 1977 -3000 7.49762e+014

-40 1977 -3000 7.70965e+014

0 1977 -3000 7.7895e+014

40 1977 -3000 7.70965e+014

80 1977 -3000 7.49762e+014

120 1977 -3000 7.15928e+014

160 1977 -3000 6.6905e+014

200 1977 -3000 6.11313e+014

240 1977 -3000 5.44879e+014

280 1977 -3000 4.71023e+014

320 1977 -3000 3.91908e+014

360 1977 -3000 3.13735e+014

400 1977 -3000 1.80061e+014

-400 1978 -3000 1.78885e+014

-360 1978 -3000 3.11686e+014

-320 1978 -3000 3.89349e+014

-280 1978 -3000 4.67947e+014

-240 1978 -3000 5.41321e+014

-200 1978 -3000 6.07322e+014

-160 1978 -3000 6.64682e+014

-120 1978 -3000 7.11254e+014

-80 1978 -3000 7.44866e+014

-40 1978 -3000 7.65931e+014

0 1978 -3000 7.73864e+014

40 1978 -3000 7.65931e+014

80 1978 -3000 7.44866e+014

120 1978 -3000 7.11254e+014

160 1978 -3000 6.64682e+014

200 1978 -3000 6.07322e+014

240 1978 -3000 5.41321e+014

280 1978 -3000 4.67947e+014

320 1978 -3000 3.89349e+014

360 1978 -3000 3.11686e+014

400 1978 -3000 1.78885e+014

-400 1979 -3000 1.7771e+014

-360 1979 -3000 3.09638e+014

-320 1979 -3000 3.8679e+014

-280 1979 -3000 4.64872e+014

-240 1979 -3000 5.37763e+014

-200 1979 -3000 6.0333e+014

-160 1979 -3000 6.60313e+014

-120 1979 -3000 7.06579e+014

-80 1979 -3000 7.39971e+014

-40 1979 -3000 7.60897e+014

0 1979 -3000 7.68778e+014

40 1979 -3000 7.60897e+014

80 1979 -3000 7.39971e+014

120 1979 -3000 7.06579e+014

160 1979 -3000 6.60313e+014

200 1979 -3000 6.0333e+014

240 1979 -3000 5.37764e+014

280 1979 -3000 4.64872e+014

320 1979 -3000 3.8679e+014

360 1979 -3000 3.09638e+014

400 1979 -3000 1.7771e+014

-400 1980 -3000 1.76534e+014

-360 1980 -3000 3.07589e+014

-320 1980 -3000 3.84231e+014

-280 1980 -3000 4.61796e+014

-240 1980 -3000 5.34206e+014

-200 1980 -3000 5.99339e+014

-160 1980 -3000 6.55945e+014

-120 1980 -3000 7.01904e+014

-80 1980 -3000 7.35075e+014

-40 1980 -3000 7.55863e+014

0 1980 -3000 7.63692e+014

40 1980 -3000 7.55863e+014

80 1980 -3000 7.35075e+014

120 1980 -3000 7.01904e+014

160 1980 -3000 6.55945e+014

200 1980 -3000 5.99339e+014

240 1980 -3000 5.34206e+014

280 1980 -3000 4.61796e+014

320 1980 -3000 3.84231e+014

360 1980 -3000 3.07589e+014

400 1980 -3000 1.76534e+014

Answer 1

[KSSV]

Let A be you m*4 data.

x = A(:,1) ; y = A(:,2) ; z = A(:,3) ; c = A(:,4) ; 

nx = length(unique(x)) ; 
ny = length(unique(y)) ; 

X = reshape(x,nx,ny) ; 
Y = reshape(y,nx,ny) ; 
Z = reshape(z,nx,ny) ; 
C = reshape(c,nx,ny) ; 
surf(X,Y,Z,C)

Answer 2

[BOB MATHEW SYJI]

Hi, this code visualises the data as scatter plot. Hope this helps.

%dat is your data file
x = dat(:,1);                             
y = dat(:,2);                     
z = dat(:,3);                      
wt = dat(:,4);                   
scatter3(x,y,z,40,wt,'filled')    
ax = gca;
ax.XDir = 'reverse';
view(-31,14)
xlabel('x(nm)')
ylabel('y(nm)')
zlabel('z(nm)')
cb = colorbar;                                     
cb.Label.String = 'Weight(Kg)';