simple graph drawing software needed

M

Mebart

Guest
I need some software for drawing basic graphs on a pc. Needs to do
linear, and log-log. I want to be able to enter data points manually
or from a mathematical formula. I don't need fancy features and lots
of bells and whistles. Hopefully, it's free or nearly so.

Thanks

M
 
In article <aio691dfuirjhh7p4easha5ugkam10h5jn@4ax.com>, Mebart <>
says...
I need some software for drawing basic graphs on a pc. Needs to do
linear, and log-log. I want to be able to enter data points manually
or from a mathematical formula. I don't need fancy features and lots
of bells and whistles. Hopefully, it's free or nearly so.
Click to expand...
Excel will draw graphs of groups data points. I'm sure OpenOffice does
similarly.

--
Keith
 
Keith Williams wrote:

In article <aio691dfuirjhh7p4easha5ugkam10h5jn@4ax.com>, Mebart
says...

I need some software for drawing basic graphs on a pc. Needs to do
linear, and log-log. I want to be able to enter data points manually
or from a mathematical formula. I don't need fancy features and lots
of bells and whistles. Hopefully, it's free or nearly so.


Excel will draw graphs of groups data points. I'm sure OpenOffice does
similarly.

Yes, OOo does just fine at that, and you can cut and paste the graphs
Click to expand...
into other OOo documents.

--
-------------------------------------------
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
 
Mebart wrote:
I need some software for drawing basic graphs on a pc. Needs to do
linear, and log-log. I want to be able to enter data points manually
or from a mathematical formula. I don't need fancy features and lots
of bells and whistles. Hopefully, it's free or nearly so.
Click to expand...
Some good key words for Google: mathematics graphing software freeware

For instance:
http://www.gold-software.com/education21-40.html
 
I can't afford Excel, and Im not sure it does log-log or even
semi-log.

Tell me about 'OpenOffice' though. WHat is it and where can I get it?

Thanks,

M


On Tue, 24 May 2005 13:39:02 -0400, Keith Williams <krw@att.bizzzz>
wrote:

In article <aio691dfuirjhh7p4easha5ugkam10h5jn@4ax.com>, Mebart
says...
I need some software for drawing basic graphs on a pc. Needs to do
linear, and log-log. I want to be able to enter data points manually
or from a mathematical formula. I don't need fancy features and lots
of bells and whistles. Hopefully, it's free or nearly so.

Excel will draw graphs of groups data points. I'm sure OpenOffice does
similarly.
Click to expand...
 
In article <0n5791tjtko3ipp48j01r4bi0cl3k8mf58@4ax.com>, Mebart <>
says...
I can't afford Excel, and Im not sure it does log-log or even
semi-log.
Click to expand...
I convinced it to do semi-log before I posted earlier. I'm not sure
about log-log, but It's worth some playtime.

Tell me about 'OpenOffice' though. WHat is it and where can I get it?
Click to expand...
It's free. What else do you need? ;-)

http://www.openoffice.org/

--
Keith
 
Keith Williams a écrit :
In article <0n5791tjtko3ipp48j01r4bi0cl3k8mf58@4ax.com>, Mebart
says...

I can't afford Excel, and Im not sure it does log-log or even
semi-log.


I convinced it to do semi-log before I posted earlier. I'm not sure
about log-log, but It's worth some playtime.


Tell me about 'OpenOffice' though. WHat is it and where can I get it?


It's free. What else do you need? ;-)

http://www.openoffice.org/

--
Keith
Hello.
Click to expand...
Just use Excel's math functions to create new series in log scale (or
not) and plot these.
Excel might not be the simplest software for your needs, but it shure
does a lot of things.
Somewhat simpler to use : GNU Plot (free) or Origin (relatively expensive)
Peter
 
Mebart wrote:
I need some software for drawing basic graphs on a pc. Needs to do
linear, and log-log. I want to be able to enter data points manually
or from a mathematical formula. I don't need fancy features and lots
of bells and whistles. Hopefully, it's free or nearly so.

Thanks

M
Click to expand...
gnuplot, coupled with octave.

---
Regards,
Bob Monsen
 
Mebart <> wrote:

I need some software for drawing basic graphs on a pc. Needs to do
linear, and log-log. I want to be able to enter data points manually
or from a mathematical formula. I don't need fancy features and lots
of bells and whistles. Hopefully, it's free or nearly so.

Get a cheap secondhand beige-coloured Mac (G3 or lower), which should
Click to expand...
come with a free copy of Claris Works. Although intended as an office
package, that will do everything you need and includes useful serial
port comms too.

--
~ Adrian Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk
 
On Tue, 24 May 2005 23:18:26 +0100, poppy.uk@ukonline.invalid.invalid
(Adrian Tuddenham) wrote:

Get a cheap secondhand beige-coloured Mac (G3 or lower), which should
come with a free copy of Claris Works. Although intended as an office
package, that will do everything you need and includes useful serial
port comms too.
Click to expand...
Ooookay. And that's better than downloading some free software in what
way?

Mike

P.S. Any relation to Peter?
 
On 2005-05-24, peter <peo.meyer@libre.fr> wrote:

Just use Excel's math functions
Click to expand...
....except the OP specifically stated that he can't afford Excel.
But Openoffcice's "calc" module is pretty compatible.

robert
 
On 2005-05-24, Mebart <> wrote:
I can't afford Excel, and Im not sure it does log-log or even
semi-log.

Tell me about 'OpenOffice' though. WHat is it and where can I get it?
Click to expand...
It's a full-blown free office suite developed by Sun that runs on
Windows, Linux, and lots of other Unices. It exports and imports
MS Office formats (and a lot of others). It's own "native" data
format is essentially gzipped XML, and of course is exchangeable
between different platforms.

It's quite a bit slower than MS Office (probably because of the
somewhat braindead XML/Java base), but that doesn't matter with
today's hardware.

robert
 
MSC <spam@spam.com> wrote:

On Tue, 24 May 2005 23:18:26 +0100, poppy.uk@ukonline.invalid.invalid
(Adrian Tuddenham) wrote:

Get a cheap secondhand beige-coloured Mac (G3 or lower), which should
come with a free copy of Claris Works. Although intended as an office
package, that will do everything you need and includes useful serial
port comms too.

Ooookay. And that's better than downloading some free software in what
way?
Click to expand...
It's better if the questioner happened to have easy access to an older
Mac (or was already using one but hadn't made that clear) and hadn't yet
realised the strength and range of the software that comes bundled with
them.

It might also be useful as an alternative approach if, for any reason,
the other suggestions don't give satisfactory results.

I didn't offer it as the unequivocal 'best' solution - but it is a valid
approach that hadn't yet been mentioned and I do know it will work.


P.S. Any relation to Peter?
Click to expand...
Not that I'm aware of.


--
~ Adrian Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk
 
OK, thanks all.

I got open office and can't figure out how to get started. There's a
lot of stuff in there. How do I get started with openoffice?

----------------------

Had no luck with gnuplot. I finally figured out where to download it
and got a 2 mb gzip file. I opened the archive and it has many files
in it, including alot that had 'readme' filenames. But, none of them
would open in windows(XP). So, I have the zip file on my desktop, but
have no idea how to proceed. I see some of the file extensions are .c.
Is this supposed to be a source file that you have to compile???

Regards

M
 
In article <aio691dfuirjhh7p4easha5ugkam10h5jn@4ax.com>, Mebart <> wrote:
I need some software for drawing basic graphs on a pc. Needs to do
linear, and log-log. I want to be able to enter data points manually
or from a mathematical formula. I don't need fancy features and lots
of bells and whistles. Hopefully, it's free or nearly so.
Click to expand...
There's gnuplot.

Mark Zenier mzenier@eskimo.com Washington State resident
 
On Wed, 25 May 2005 12:29:35 -0400, wrote:

OK, thanks all.

I got open office and can't figure out how to get started. There's a
lot of stuff in there. How do I get started with openoffice?
Click to expand...
Have you read this page?
http://www.openoffice.org/dev_docs/instructions.html

Had no luck with gnuplot. I finally figured out where to download it
and got a 2 mb gzip file. I opened the archive and it has many files
in it, including alot that had 'readme' filenames. But, none of them
would open in windows(XP). So, I have the zip file on my desktop, but
have no idea how to proceed. I see some of the file extensions are .c.
Is this supposed to be a source file that you have to compile???
Click to expand...
If it's got .c files and a "lot of" READMEs, then it's source, and
probably useless if all you have is XP with no c compiler.

You should download gp400win32.zip . I found a copy at
ftp://ftp.gnuplot.info/pub/gnuplot/gp400win32.zip .

It has wgnuplot.exe, which would be the executable, and wgnuplot.hlp,
which would be the help file.

When you unzip it, it should create its own dir. structure under
[where the zip is]\gnuplot, then just cd to gnuplot\bin and give it a
shot. :) Well, read the READMEs first. They're ordinary text files -
you can open them with NOTEPAD.exe .
--
Cheers!
Rich
 
Thanks Rich, that was easy.....

Almost all of the chatter there was about compiling, I really never
happened to stumble upon the executable link and was wondering if it
was for real:>:

Regards

M

On Wed, 25 May 2005 17:54:14 GMT, Rich Grise <richgrise@example.net>
wrote:

>ftp://ftp.gnuplot.info/pub/gnuplot/gp400win32.zip
 
Hey, now I'm cooking! Got gnuplot, don't even understand half the
terms in the help file though:>: Math was never my strength.

But, it runs and I can cut and paste examples from the examples help
page and it plots them.

I'm trying to plot y=ax^b, for all values of x between 1200 and 200
with b=7.64 and a=1.170, with at least 100 data points. Do I have to
tell it to plot this on a log-log scale or is this done automatically
because I used x^b in the formula?

What's the complete command for this???? I'm looking for a mailing
list for gnuplot, it seems like a very nice program.

Thanks,

M

On Tue, 24 May 2005 13:23:22 -0400, Mebart <> wrote:

I need some software for drawing basic graphs on a pc. Needs to do
linear, and log-log. I want to be able to enter data points manually
or from a mathematical formula. I don't need fancy features and lots
of bells and whistles. Hopefully, it's free or nearly so.

Thanks

M
Click to expand...
 
In article <okv9919cm3iqretor93n2lpmivuvr76lvb@4ax.com>, Mebart <> wrote:
Hey, now I'm cooking! Got gnuplot, don't even understand half the
terms in the help file though:>: Math was never my strength.

But, it runs and I can cut and paste examples from the examples help
page and it plots them.

I'm trying to plot y=ax^b, for all values of x between 1200 and 200
with b=7.64 and a=1.170, with at least 100 data points. Do I have to
tell it to plot this on a log-log scale or is this done automatically
because I used x^b in the formula?

What's the complete command for this???? I'm looking for a mailing
list for gnuplot, it seems like a very nice program.
Click to expand...
Here's an example that runs under gnuplot 3.7.1. It's the
inductive/capacitive reactance plot vs. frequency that's in The Art of
Electronics/Terman/ARRL Handbook. In other words, a log/log plot
of 1/2*pi*f*c and 2*pi*f*l. I'll be damned if I can remember
what all this stuff does besides spit out a page of postscript.
Basically, I went down the list of commands and put them all in
and adjusted them until it looked good.

Mark Zenier mzenier@eskimo.com Washington State resident


set terminal postscript landscape monochrome "Helvetica" 14
set output 'react.ps'
set title "reactance vs. frequency" 0,0
set noclip points
set clip one
set noclip two
set border
set boxwidth
set dummy x,y
set format x "%6.3g"
set format y "%g"
set format z "%g"
set grid
set nokey
set nolabel
set noarrow
set nologscale
set logscale x 10
set logscale y 10
set offsets 0, 0, 0, 0
set nopolar
set angles radians
set noparametric
set view 60, 30, 1, 1
set samples 100, 100
set isosamples 10, 10
set surface
set nocontour
set clabel
set nohidden3d
set cntrparam order 4
set cntrparam linear
set cntrparam levels auto 5
set cntrparam points 5
set size 1,1
set data style points
set function style lines
set xzeroaxis
set yzeroaxis
set tics in
set ticslevel 0.5
set ytics (1,2,3,5,7,10,20,30,50,70,100,200,300,500,700,\
1000,2000,3000,5000,7000,\
10000,20000,30000,50000,70000,100000)
set xtics (100,"" 200,300,"" 500,"" 700,\
1000,"" 2000,3000,"" 5000,"" 7000,\
10000,"" 20000,30000,"" 50000,"" 70000,\
100e3,"" 200e3,300e3,"" 500e3,"" 700e3,\
1e6,"" 2e6,3e6,"" 5e6,"" 7e6,\
10e6,"" 20e6,30e6,"" 50e6,"" 70e6,100e6)
set ztics
set notime
set rrange [-0 : 10]
set trange [-5 : 5]
set urange [-5 : 5]
set vrange [-5 : 5]
set xlabel "Hertz" 0,0
set xrange [100 : 1e+08]
set ylabel "Ohms" 0,0
set yrange [1 : 100000]
set zlabel "" 0,0
set zrange [-10 : 10]
set autoscale r
set autoscale t
set noautoscale
set autoscale z
set zero 1e-08
set label "10H" at 200,30000
set label "100mH" at 1500,3000
set label "1mH" at 20000,300
set label "10uH" at 200000,30
set label ".1uH" at 2000000,3
set label "1H" at 600,8000
set label "10mH" at 5000,1000
set label "100uH" at 50000,100
set label "1uH" at 600000,8
set label "100uF" at 2e2,4
set label "1uF" at 2e3,40
set label "10nF" at 2e4,400
set label "100pF" at 2e5,4e3
set label "1pF" at 2e6,4e4
set label "10uF" at 6e2,13
set label "100nF" at 6e3,130
set label "1nF" at 6e4,1.3e3
set label "10pF" at 6e5,1.3e4
xl(x,l) = 2*pi*x*l
xc(x,c) = 1/(2*pi*x*c)
plot \
xl(x,5) not w l 2,\
xl(x,.5) not w l 2,\
xl(x,.05) not w l 2,\
xl(x,5e-3) not w l 2,\
xl(x,5e-4) not w l 2,\
xl(x,5e-5) not w l 2,\
xl(x,5e-6) not w l 2,\
xl(x,5e-7) not w l 2,\
xl(x,5e-8) not w l 2,\
xc(x,50e-6) not w l 2,\
xc(x,5e-6) not w l 2,\
xc(x,.5e-6) not w l 2,\
xc(x,50e-9) not w l 2,\
xc(x,5e-9) not w l 2,\
xc(x,.5e-9) not w l 2,\
xc(x,50e-12) not w l 2,\
xc(x,5e-12) not w l 2,\
xc(x,.5e-12) not w l 2,\
xl(x,10) w l 1,\
xl(x,1) w l 1,\
xl(x,.1) w l 1,\
xl(x,.01) w l 1,\
xl(x,.001) w l 1,\
xl(x,1e-4) w l 1,\
xl(x,1e-5) w l 1,\
xl(x,1e-6) w l 1,\
xl(x,1e-7) w l 1,\
xc(x,100e-6) w l 1,\
xc(x,10e-6) w l 1,\
xc(x,1e-6) w l 1,\
xc(x,100e-9) w l 1,\
xc(x,10e-9) w l 1,\
xc(x,1e-9) w l 1,\
xc(x,100e-12) w l 1,\
xc(x,10e-12) w l 1,\
xc(x,1e-12) w l 1
 
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