Preparing 3d dataset for visuallation

Hello,

I have a dataset of concentration measurements which occured at 7322 separate times (rows of data) and 192 different sizes of particles (columns of data).

The data is presently in a table format, row one is the particle size and column one are the observation times:

Although the date intervals are equal, the particle size intervals are not.

My goal is to produce a 3d contour map or similar which shows concentration of these various particle sizes over time. Can someone please assist with the following questions?:

• is a table the appropriate format? I have considered converting into a matrix by converting the date/time into a numerical format, though unsure how to capture the variables (particle size)

Any references would be helpful. Many thanks in advance.

Answer 1

[Walter Roberson]

x = YourTable.Date;
y = YourTable{1,2:end};
z = YourTable{2:end,2:end}.';
surf(x, y, z, 'edgecolor', 'none')

This uses time as your first independent axes. Some people would suggest that the structure of your data should instead be read as

y = YourTable.Date;
x = YourTable{1,2:end};
z = YourTable{2:end,2:end};
surf(x, y, z, 'edgecolor', 'none')

which maps the vertical axes in the table to the vertical axes in the plot.

[Natalia Cross]

Thank you, that's been helpful - are you familiar with what plotting function might generate something similar to this? (where the colour relates to concentration values, y axis is particle size and x is date):