CoHort Software |
Download CoPlot 6.451 for Free
Thank you for choosing to try CoPlot.
(This is version 6.451.)
- Technical Support --
We offer free, but limited, technical support (mostly to help with installation problems).
Contact technical support.
CoPlot now includes all of the files that were optional in previous versions.
For all operating systems (Windows, Macs, and Linux)
- If your computer doesn't already have Java version 8,
download and install Java version 8 by going to
and downloading the latest release of Temurin 8 (LTS).
- Download coplot6451.zip
(Trouble downloading? Try this mirror site.)
- For Windows or Linux, use a Zip program to unzip coplot6451.zip into some directory,
perhaps a new /programs directory on Windows (but not \Program Files or \Program Files (x86))
or /usr/local/bin on Linux.
Unzipping the .zip file will make a cohort6 directory which has all the files.
On Macs, the .zip file will already be unzipped and
will appear as a cohort6 folder in your Downloads folder.
In Finder, drag the cohort6 folder to your Applications folder.
- For Linux, you need to make the script files exectuable.
chmod +x coplot.sh
chmod +x costat.sh
chmod +x cotext.sh
- To run the program,
- For Windows, double click on the coplot.bat, costat.bat, or cotext.bat
script files in the cohort6 directory.
.bat may not appear, but Windows batch file
will appear in the Type column or if you hover over the name.
If Windows says it is an untrusted application, click More info : Run Anyway.
- For Macs, this is an untrusted app (we're working on that), so you need to
Control click on the coplot, costat or cotext Application files
or the coplot.command, costat.command or cotext.command
files in the cohort6 directory and select Open.
- For Linux, double click on the coplot.sh, costat.sh, or cotext.sh
script files in the cohort6 directory.
- If you have problems installing or running the program, see the suggestions below.
- Register the program to make it full functional:
Use (in the program) Help : Register, and enter
Your Name: For Free
CoPlot Registration Number: 2001906721
CoStat Registration Number: 928164897
Common Download Problems
- If your browser changes the file's name before saving it,
change the name back to the name specified above.
- If the download freezes at 99%
for more than a minute, try cancelling it and
starting the download again. Usually, it will go super fast the
second time and get to 100%.
If that doesn't work, try downloading with a different browser
(if you have one) or on a different computer.
If that doesn't work,
please send an email to CoHortSoftware at gmail.com.
Common Problems with Installing and Running CoPlot from the Command Line
- When you double click on the coplot.bat or coplot.sh file, a window opens up,
a bunch of text is written, then the window closes (without opening CoPlot).
- You're going to need to edit the coplot.bat or coplot.sh file to solve the problem.
But first, to see what the problem is:
Then the error message should remain visible.
Then you can work to solve the problem by reading the other suggestions below.
- Open a command line window.
- cd to the cohort6 directory
- Type: coplot.bat or coplot.sh
- Windows, Macs, or Linux says something like:
"Bad command or file name: java" right
after the script tries to run java.
- The Java program isn't being found.
Make sure Java is installed and accessible by typing java -version
from a command line. It should answer with the version number.
If not, fix the Java installation.
If Java is installed but not accessible via references to 'java',
edit the script to include the name of the directory where the java program
file is located.
- There are text buttons, not graphics icon buttons, on the toolbar
just below the menu titles.
- Make sure that the icon's .gif files
are indeed in the cohort6 directory: for example, check to see that
OpenButton.gif is present. If it isn't, try to find out where it is
(in Macs and Linux, use "find / -name 'OpenButton.gif'")
as that may help you determine what went wrong with your installation.
- Problems running CoPlot from a shortcut file or a desktop icon?
- Make sure the shortcut points
to the correct script file in the cohort6 directory.
Also, make sure that the shortcut file makes the cohort6 directory
the current directory before it runs the coplot script.
- You want to associate .draw files with coplot.bat?
- Right click on a .draw file.
- Click on "Open with"
- Click on "More apps"
- Click on "Look for another app on this PC" at the bottom of the screen.
- Navigate through the directories to find and then click on coplot.bat.
What Is in the 'coplot' Script/Batch Files?
Few people will need to know these details. But here they are:
If you use the command line installation method,
the CoHort programs are actually run by
Macs/Linux shell scripts (for example, coplot, no extension), or
Windows batch files (for example, coplot.bat,
if you aren't using the coplot.exe file).
In unusual cases (for example, non-Sun versions of Java),
you may need to modify these files to get the
programs to run on your computer.
Usually, the files have just one command in them. Using the Windows
batch file for CoPlot as an example:
java -Xmx1300m -cp .;cohort.jar com.cohort.CoPlot %1 %2 %3 %4
The syntax is slightly different in the Macs/Linux shell scripts.
The components are:
- runs the program via the java program.
If Java isn't found when you run the script file,
make sure Java is correctly installed.
In some circumstances, you need to add the full directory name before "java".
- specifies 1300 MB as the maximum amount of memory to be
allocated to the program. 1300 MB is the most you
can safely allocate on computers with 32-bit operating
systems or 32-bit Java.
If you get an "out of memory" error message in a CoHort program,
it is more likely that something other than
memory is the problem. See
Memory in the CoStat manual.
However, if you are working with huge data files
and want to increase the memory allocation on
64-bit operating systems with 64-bit Java, just change the number:
e.g., -Xmx3000m .
The highest you should set this to is about 3/4 of the amount
of physical memory in your computer.
Specifying more than that leads to disk thrashing.
- -cp .;cohort.jar
- sets the Java classpath, which
tells Java where to look for the Java class files.
The cohort.jar file is a compressed file which contains all of the
class files from CoHort Software.
All of the other files which are distributed with CoPlot
(for example, .fnt files) should
be in the same directory as cohort.jar.
In the Macs and Linux script files, the path separator is ":", not ";".
- the name of the Java class to be run.
This is "com.cohort.CoStat" or "com.cohort.CoText" in the other script files.
This is case sensitive in all operating systems.
- %1 %2 %3 ... (or similar)
- passes the parameters on the command line (e.g., a document name)
to the program.
Optional Document Name on the Command Line
For CoPlot, the extension of the documentName on the command line
tells CoPlot what type of graphics file it is, so that CoPlot
can import it. If documentName doesn't have an extension,
".draw" will be added. Supported file types
(and the necessary extensions) are:
CoPlot's native format (.draw),
Adobe Illustrator (.eps),
DOS CoDraw (.dra),
DOS CoPlot (.gra),
PPM (.ppm), and
Windows MetaFile (.wmf).
If you have one of these file types that doesn't have the
appropriate extension, you need to either rename the file or
use File : Open within the program. After any file is
imported, the extension is changed to .draw (so that if you use
File : Save,
the file will be save in the .draw format and not overwrite
the original file with the original extension).
CoStat Optional Datafile Name on the Command Line -
For CoStat, the extension of the datafile name on the command line
tells CoStat what type of data file it is, so that CoStat
can import the data. If the datafile name doesn't have an extension,
.dt will be added. Supported file types
(and the necessary extensions) are:
Comma separated value ASCII (.csv),
columnar ASCII (.col),
CoStat (DOS .dt and Java .dt),
Lotus 1-2-3 (.wk3),
Microstat II (.mii),
Quattro Pro for Windows (.qpw),
Rich Text Format (Word, .rtf),
SAS PC (.tpt),
Space separated ASCII text (.txt),
Tab separated ASCII text (.tab).
For example, "costat longley.dbf"
will run CoStat and import data from the Longley
dBASE file. See File : Open in the CoStat manual
Common Problems Running CoPlot
Although we don't officially support them or recommend using them, here are older versions
Problems, Comments, Questions, or Suggestions?
We want your experience with CoPlot to be a good one.
If you have problems, comments, questions, or suggestions,
don't hesitate to contact technical support.