How to use Grid_to_Vox3_win:

 

Grid_to_Vox3_win is for handling the G. menardii data set.

 

1. Launch the program Grid_to_Vox3_win by double clicking on the icon.

 

2. Enter the name of the list containing the sample names. Example: enter List_of_files.txt.

Note, that on prompting, the appendix .txt must be typed as well; the string may not be longer than 17 characters.

 

Make sure the file List_of_files is an asci text file (depending on the settings of your PC, the appendix .txt of the file icon does not appear). In the file List_of_files the names of each file to be gridded must be indicated with the appendix .txt to each filename. The end of file should be marked with a carriage return. Example:

 

Inputxxxxxxxxxx1.txt

Inputxxxxxxxxxx2.txt

<CR>

 

3. Next, enter the desired option (1, 2 or 3).

Option 1 outputs the data for voxler with normalized X (diameter), Y (number of elements), and Z (Age) axes, i.e. the axes are scaled to a range between 0 and 1 for X and Y, and between 0 to -1 for the age. Frequency F is also normalized (i.e. relative frequencies in per cent are given).

 

In option 2 the X, Y, and Z axes are not normalized, but frequency is normalized (relative frequencies are given in per cent).

 

In option 3 no normalization is applied and frequencies are absolute number of specimens per grid cell.

 

4. Next, enter the options for output ( 1 or 2):

In option 1 each gridded input data matrix will be reorganized for Voxler input but written in a separate file.

In option 2 each gridded input data matrix will be reorganized vor Voxler input, but all data will be written to one single file. This is the usual way to readout the data.

 

5. Next, enter the maximum age (in million years before present) of the samples listed in List_of_files. This value will be used if you choose option 1 in step 3.

 

6. Terminate program run by typing a key and then Return.

 

7. The generated output file can be imported to Voxler.

 

Settings for gridding bivariate X,Y data for G. menardii:

Upper X limit (spiral height) was 700 micrometers and an upper Y limit (axial length) was 1600 micrometers. Grid cell dimensions: DeltaX was taken to be 50 micrometers, DeltaY was taken to be 100 micrometers).

 

In the first column are the center coordinates for the spiral height intervals (25 for the interval from 0 micrometer to 50 micrometer; 75 stands for the center of the interval from 50 micrometer to 100 micrometer; etc).

In the second column are the centers for the axial length intervals (i.e. 50 stands for the center of interval from 0 to 100 micrometers; 150 represents the mid-value of the axial length interval from 100 to 200 micrometers; etc).

In the third column are the ages indicated.

In the last column there are the frequencies (absolute or in per cent) of specimens per grid-cell indicated.