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.