Re: Scatter Plotting

[Stephen H. Dawson]

Hi,


Working on this effort to use worksheet data to feed into a
three-dimensional cube graph.

I have an ODS worksheet with data formatted as numeric in three columns
with an x, y, and z header. I have read through the odsread function.

http://wiki.octave.org/IO_package#ODS_support

I understand I am loading the data into a memory variable called A.

I have looked at working examples of  three-dimensional cube graph.

I am unclear how to feed memory variable A to the syntax.


WORKING DIRECTORY:
>> ls -la *.ods
-rw-r--r-- 1 stephen stephen 10612 Jun 10 11:54 CubeGraphing.ods
-rw-r--r-- 1 stephen stephen 27218 Feb 18 11:30 Quadrant Graphing.ods
>>


FUNCTIONAL SYNTAX:
clf;
x = rand (20,1);  y = rand (20,1);  z = rand (20,1);
scatter3 (x(:), y(:), z(:), 20*z(:), z(:), 's');
title ({'scatter3() plot', ...
         'marker is square, size and color determined by Z'});



DEVELOPMENTAL SYNTAX:
clf;
A = odsread ('./CubeGraphing.ods', 'Data', 'C2:E5');
[x, y, z] = peaks (20);
scatter3 (x(:), y(:), z(:), [], z(:));


How do I call memory variable A into the data array and list?

Am I correct I list with the scatter3 function?

Thank You,
Stephen H. Dawson
(865) 804-3454
http://www.linkedin.com/in/shdcs


On 06/06/2016 04:10 PM, Stephen H. Dawson wrote:
>>> pkg list
> Package Name  | Version | Installation directory
> --------------+---------+-----------------------
>           io *|   2.0.2 | /usr/share/octave/packages/io-2.0.2
> Fantastic. Thanks, all.
>
> Thank You,
> Stephen H. Dawson
> (865) 804-3454
> http://www.linkedin.com/in/shdcs
>
>
> On 06/06/2016 01:55 PM, Doug Stewart wrote:
>>
>> On Mon, Jun 6, 2016 at 1:32 PM, Stephen H. Dawson
>> <address@hidden <mailto:address@hidden>> wrote:
>>
>>     Thank you, Isak. This spreadsheet interface greatly helps me.
>>
>>     I have now installed octave-io from distro repository. I am running
>>     octave via:
>>
>>     octave --force-gui
>>
>>     How does one load octave-io, please?
>>
>>
>> when you do
>> pkg list
>>
>> you should see a list of all the pkgs that have been installed'
>> If the is a * next to the pkg name then it is also loaded.
>>
>> to load a pkg type
>>
>> pkg load "pkgname"
>>
>> pkgname is the name in the list
>>
>>
>>
>>
>>  
>>
>>
>>     Thank You,
>>     Stephen H. Dawson
>>     (865) 804-3454 <tel:%28865%29%20804-3454>
>>     http://www.linkedin.com/in/shdcs
>>
>>
>>     On 06/05/2016 08:40 PM, Isak Delberth Davids wrote:
>>     > On 6 June 2016 at 00:31, Stephen H. Dawson <address@hidden
>>     <mailto:address@hidden>
>>     > <mailto:address@hidden <mailto:address@hidden>>> wrote:
>>     >
>>     >       x = [x1, x2, x3, ...];
>>     >       y = [y1, y2, y3, ...];
>>     >       z = [z1, z2, z3, ...];
>>     >
>>     >
>>     >     Yes, I think I see how to do this now. I will work in it
>>     over the next
>>     >     week and see where I end up.
>>     >
>>     >     I appreciate your kind assistance.
>>     >
>>     >     Thank You,
>>     >     Stephen H. Dawson
>>     >     (865) 804-3454
>>     >     http://www.linkedin.com/in/shdcs
>>     >
>>     >
>>     >     On 06/05/2016 06:25 PM, Mike Miller wrote:
>>     >     > On Sun, Jun 05, 2016 at 18:13:38 -0400, Stephen H. Dawson
>>     wrote:
>>     >     >> Catchy, nice functionally.
>>     >     >>
>>     >     >> Well, perhaps I am not asking my question properly. If I
>>     have 3
>>     >     columns
>>     >     >> in a spreadsheet of x, y, and z values, how do I enter
>>     those 3
>>     >     values
>>     >     >> for each location into the scatter3 function?
>>     >     >   x = [x1, x2, x3, ...];
>>     >     >   y = [y1, y2, y3, ...];
>>     >     >   z = [z1, z2, z3, ...];
>>     >     >   scatter3 (x, y, z);
>>     >     >
>>     >     > The demos generate random x, y, and z, but I think they pretty
>>     >     clearly
>>     >     > show how the coordinate vectors are passed to the function, as
>>     >     well as
>>     >     > how to pass additional arguments to set the size or color of
>>     >     each of the
>>     >     > points.
>>     >     >
>>     >     > It's the same as line plotting, the function takes in
>>     individual
>>     >     arrays
>>     >     > for each independent dimension of the plot. Corresponding
>>     values in
>>     >     > those arrays are the points of the line, histogram,
>>     scatter plot, or
>>     >     > surface that is being plotted.
>>     >     >
>>     >     > Is that what you are asking about?
>>     >     >
>>     >
>>     >
>>     >     _______________________________________________
>>     >     Help-octave mailing list
>>     >     address@hidden <mailto:address@hidden>
>>     <mailto:address@hidden <mailto:address@hidden>>
>>     >     https://lists.gnu.org/mailman/listinfo/help-octave
>>     >
>>     >
>>     > Hi,
>>     >
>>     > and since you mentioned "columns in a spreadsheet", this is how you
>>     > can read and use data from a spreadsheet.
>>     >
>>     > % reading spreadsheat
>>     > dataSet = xlsread('dataFile.xlsx')
>>     >
>>     > % extract individual columns one through three
>>     > x = dataSet(:,1)
>>     > y = dataSet(:,2)
>>     > z = dataSet(:,3)
>>     >
>>     > % plotting with data read from spreadsheet
>>     > scatter3(x, y, z);
>>     >
>>     > I think this requires that you have the octave-io package installed
>>     > and loaded.
>>     >
>>     > Cheers,
>>     > Isak Delberth DAVIDS
>>     >
>>
>>
>>     _______________________________________________
>>     Help-octave mailing list
>>     address@hidden <mailto:address@hidden>
>>     https://lists.gnu.org/mailman/listinfo/help-octave
>>
>>
>>
>>
>> -- 
>> DASCertificate for 206392
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