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From: <HBB...@t-...> - 2006-11-15 22:54:00
|
Marco Calviani wrote: > i'm using gnuplot to plot data from a data file, made by different blocks. > I have to plot, however, some data that request the use of data from > multiple rows, and in particular from the row before the active one: [...] > Is this possible with gnuplot? In a word: no. gnuplot is a plotting program, not a full-service numerical analysis package. Follow the Unix principle: one tool <--> one task. Tools for massaging data are: AWK, Perl or any kind of programming language you like. Read about 'help plot special' to learn how to integrate those tools with gnuplot. |
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From: Lars H. <la...@ho...> - 2006-11-15 20:21:04
|
On Tuesday November 14th, 2006 at 20:22 h doug bull wrote: > I have come up with a solution, but it is not to neat. My > problem is that it appears that the "key" does not allow > one to write out a variable as you can do with label. Is > this true? No. > To get around this I have made the following do loop to > loop over the data sets and > to have a key for each data set and label it. Is there a > better way to do this. > > set multiplot > n=0; n2=10 > load 'cmd' > > Where the file 'cmd is: > r=(n+1)/12 > set label "%g",n at screen .6,r > set key screen .9,r > plot 'junkresidl' index n:n u 3:4 w l lt (n+1) > pause 0 > n=n+1 > if(n<n2) reread By using the title-option within the plot-command you may place every kind ot text your chosen terminal is able to work with into the key entry of that particular plot. plot 'junkresidl' index n:n u 3:4 title "%n" w l lt (n+1) Many terminals support various commands for producing e.g. indices or superscripts or italic text. See help title and help terminal for more details. BTW: You loop will produce 10 new plots, since every plot-command leads to a new output. Maybe the facilities of replot may help you with this, see help replot. Regards Lars |
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From: Lars H. <la...@ho...> - 2006-11-15 20:21:02
|
On Wednesday, November 15th, 2006 at 17:14 h Marco Calviani wrote: > i would like to plot on the y axis of the graph > "function/(energy-(energy-1))" where energy-1 is the > "energy" column before the active one. For example for > the table above that would be 30/(3-2). > Is this possible with gnuplot? As I see it there is no sophisticated way using the interna of gnuplot, since the programme usually is used for working with one datapoint (row) at the same time. The 'easiest' way (or at least the way I would solute this problem) is to add another column, which lists the values of (energy-1). This may be done automatically by a small, self written programme or by a script for your favourite table calculating programme. You could refer to this new column simply by using using ;-) gnuplot supports the facilities provided by the scanf-library. I used these to split up a column value within a datapoint into several values, but I'm not sure, wheter scanf is able to "look" a row above. Maybe you'd like to ask gnuplots help about using and scanf. Hope that helps Lars |
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From: Marco C. <mar...@gm...> - 2006-11-15 16:14:20
|
Hi list,
i'm using gnuplot to plot data from a data file, made by different blocks.
I have to plot, however, some data that request the use of data from
multiple rows, and in particular from the row before the active one:
in particular something like this
# energy function
1 10
2 20
3 30
.. ..
i would like to plot on the y axis of the graph
"function/(energy-(energy-1))" where energy-1 is the "energy" column
before the active one. For example for the table above that would be
30/(3-2).
Is this possible with gnuplot?
Thanks in advance,
mc
|
|
From: cacti <apr...@y-...> - 2006-11-15 11:50:09
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2900.2963" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <div align="left"> <p><font face=Arial = >Additional mods include extending the arms into the rear cabin and welding brackets, making this kit better suited for the serious enthusiast.I could have gone to school, but I preferred to make money while learning the language.</font><BR><BR><IMG alt="" hspace=0 src="cid:JW45XTNDUZTK253926RZ" align=baseline border=0><BR><BR><font face=Arial = >If the coolant becomes too hot, it will boil and create vaporIt airs during the Superbowl halftime show</font><BR><font face=Arial = >Let's talk about guysAmbient conditions such as altitude, temperature, barometric pressure and relative humidity </font><BR><font face=Arial = >Pacifier? That's everything you told me you didn't likeIf you weren't modeling, what would you be doing?Every man's dream: a beautiful, naked woman that you get to pose any way you want! </font><BR><font face=Arial = >What do you consider the hottest part of your body?But if 2NR says it's so, grab that extinguisher and be ready to put out some flames" My real name is Jason--come and get me! </font><BR><BR><font face=Arial = >Typical inertial dynos have a computer that measures the time it takes a car to accelerate rollers or drums of a specific weight to red lineHowever, if you are running a rich mixture, the metallic cat is still your best bet.</font><BR><BR><font face=Arial = >I'm thinking the Pitch Black Vin</font></p> </div> </BODY></HTML> |
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From: doug b. <dou...@ho...> - 2006-11-14 19:22:15
|
Hi, Thank you for suggesting the use of index. However, I have many data set and writting them all out using index is painful. So, here is what I would like to do: I have many data sets in a file. The data sets are separated by two blank lines. I would like to plot all the data sets on one plot and have each one have its own "key" I have come up with a solution, but it is not to neat. My problem is that it appears that the "key" does not allow one to write out a variable as you can do with label. Is this true? To get around this I have made the following do loop to loop over the data sets and to have a key for each data set and label it. Is there a better way to do this. set multiplot n=0; n2=10 load 'cmd' Where the file 'cmd is: r=(n+1)/12 set label "%g",n at screen .6,r set key screen .9,r plot 'junkresidl' index n:n u 3:4 w l lt (n+1) pause 0 n=n+1 if(n<n2) reread Thank you, >From: "Marek W. Gutowski" <gu...@if...> >Reply-To: gu...@if... >To: doug bull <dou...@ho...> >Subject: Re: [Gnuplot-info] using different line styles for multiple plots >- from one data file >Date: Tue, 14 Nov 2006 10:49:05 +0100 > >Hi, >Please read help index first. >Later extend your 'plot' command, by plotting several >lines grouped by "index" expression and each appended >with line type number you wish. > >Marek Gutowski > >doug bull wrote: >>Hi, >> >>I have a data file that contains data separated by blank lines as in the >>following "file": >> >>1 2.2 >>2 2.4 >> >>1 2.3 >>2 2.4 >> >>I do >> >>plot 'file' u 1:2 w l >> >>and all works well, except that the lines are the same color. How do I get >>the lines to have >>different symbols or different colors? >> >>Thank you, >> > > >-- >Marek W. Gutowski >Institute of Physics, ON-3.2, Al. Lotnikow 32/46 >02-668 Warszawa, POLAND, tel. +48-22-0228436601 ext. 3122 > >> To talk or not to talk? Yes, talk, plain ASCII please << >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ _________________________________________________________________ Add a Yahoo! contact to Windows Live Messenger for a chance to win a free trip! http://www.imagine-windowslive.com/minisites/yahoo/default.aspx?locale=en-us&hmtagline |
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From: <HBB...@t-...> - 2006-11-14 19:21:32
|
Morten Huse wrote:
> Is there a way to set up restrictions for the variables used when fitting a
> function to a data set?
You have to transform a full-range fit parameter into a number that
obeys the range requirement, e.g.
> f(x)=a*x+b
> fit f(x) 'example.txt' u 2:1 via a,b
>
> but variable b must be between 1 and 10 for example
could be rewritten as
limit(x,lower,upper)=lower+(upper-lower)/pi*atan(x)
f(x)= a*x+limit(b,1,10)
|
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From: Holmes <Hol...@ro...> - 2006-11-14 13:50:55
|
Nice to see you! While millions complain, you can benefit from an all-covering solution. There is a good reason for Extra-Time being ranked the number one solution. Hate seeing her unhappy face after you finish too quickly? Come in here: http://berhoj.com/y/et/ You won't hear another word of reproach from her! She'll just keep you a secret from her friends! |
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From: Lars H. <la...@ho...> - 2006-11-14 11:08:56
|
On Tuesday November 14h, 2006, 04:04 doug bull wrote: > I have a data file that contains data separated by blank > lines as in the following "file": > > 1 2.2 > 2 2.4 > > 1 2.3 > 2 2.4 > > I do > > plot 'file' u 1:2 w l > > and all works well, except that the lines are the same > color. How do I get the lines to have > different symbols or different colors? I assume that you already know how to use the keyword "with" to choose your desired line and point style. gnuplot uses blank lines in datafiles as seperators between different datasets: _One_ blank line makes gnuplot "think" that there is only one datum missing. That's why gnuplot gives all points of your dataset the same line and color. One blank line seperates data blocks. But you may give every datablock its own characteristics by using the keyword every: plot 'file' every :1::1::1 with lines For more information use: help every _Two_ blank lines seperate datasets. gnuplot plots them as if they were split into different files, so every dataset gets its own line color and point symbol. The keyword to navigate through these datasets is "index" plot 'file' index 1:3:1 with lines index and every may be combined. For more information see: help index Hope that helps Lars |
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From: Morten H. <mor...@sm...> - 2006-11-14 10:00:11
|
Is there a way to set up restrictions for the variables used when fitting a function to a data set? ---Example--- f(x)=a*x+b fit f(x) 'example.txt' u 2:1 via a,b but variable b must be between 1 and 10 for example Setting a range (x or y) to fit a part of the graph is no problem. Setting limits/range for the individual fitting variables is my problem. Please, Anyone!!! morten |
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From: doug b. <dou...@ho...> - 2006-11-14 03:04:12
|
Hi, I have a data file that contains data separated by blank lines as in the following "file": 1 2.2 2 2.4 1 2.3 2 2.4 I do plot 'file' u 1:2 w l and all works well, except that the lines are the same color. How do I get the lines to have different symbols or different colors? Thank you, _________________________________________________________________ Stay in touch with old friends and meet new ones with Windows Live Spaces http://clk.atdmt.com/MSN/go/msnnkwsp0070000001msn/direct/01/?href=http://spaces.live.com/spacesapi.aspx?wx_action=create&wx_url=/friends.aspx&mkt=en-us |
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From: Ayo S. <vj...@io...> - 2006-11-13 19:39:41
|
Hi, =20 VImAGRA VAmLIUM CImALIS http://www.pituihunjersda.com =20 , He unclipped his phone from his belt, shouted a multi-digit number |
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From: <HBB...@t-...> - 2006-11-12 22:40:19
|
Sam Steingold wrote: > I want to add a title that would encompass all plots on the multiplot page. > How do I do that? Either by doing a dummy plot (all elements but the title turned off, fixed ranges, data outside) at full size as part of the multiplot, or via 'set label' using 'screen' coordinates (--> help coordinates). |
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From: Lars H. <la...@ho...> - 2006-11-12 16:25:02
|
On Saturday November 11th 2006 21:17 D. R. Evans wrote: > I have a data file in a simple x y z format. It starts > like this: > > 1 0 0 > 1 10 0 > 1 20 0 > 1 30 0 > 1 40 0 > 1 50 0 > 1 60 0 > 1 70 0 > 1 80 0 > > and ends like this > > 249 24950 0 > 249 24960 0 > 249 24970 1 > 249 24980 0 > 249 24990 1 > > It contains a total of ~350,000 lines. Does your file only contain the z-values 0 and 1? As you've described, pm3d does not produce the output you hoped it would be. As I see it, the problem is in the structure of your dataset. Most of the z-values are 0, that should produce a flat surface with the darkest color of the color bar. Over this surface there are only 'a few' peaks with the value 1. The pm3d-option tries to connect these peaks with the 0-surface on the bottom. Due to the mathematic constellation of your data, the resulting connecting surfaces have to be like infinte small columns standing rectangular on the base surface. Since there are no values given in between, gnuplot has problems, how to color these (no-width) columns. As a consequence only small dots with the brightest colors of the colormap should be drawn at the spots, where your dataset contains a 1. Since you are plotting 350.000 datapoints, these dots may te too short for the reolution of your screen (or your favoured output medium). My advice: Reduce the number of datapoints to a plottable amount; you may use gnuplots facilities to plot only every nth line of your dataset (e.g splot dataset every 3). This in combination with a change of the plotting symbol (e.g. splot dataset with dots) may give a better result. Greetings Lars |
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From: D. R. E. <doc...@gm...> - 2006-11-12 00:17:35
|
D. R. Evans said the following at 11/11/2006 01:17 PM : > 1. Why don't I see any points/surface plotted? > 2. What commands do I need to issue in order to see the data? > I finally figured out that one needs to add a blank line whenever the value in the first column changes. I don't understand why this has to be done manually, but apparently it does. Doc |
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From: dennis b. <hor...@pc...> - 2006-11-11 23:50:45
|
Totally OutOfDebt Overnight 314-719-2803 But what of him? Why, he's discovered a powerful light, the Demon gave an amused chuckle, and he's in communication with the people in Mars.What people? Why, the people who live there There are none |
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From: D. R. E. <doc...@gm...> - 2006-11-11 20:17:49
|
Using gnuplot 4.0, patch level 0. I apologise for this elementary question, but I have spent more than an hour trying to do something very simple, with no success (and also spent time additional googling for an example, to no avail). I have a data file in a simple x y z format. It starts like this: 1 0 0 1 10 0 1 20 0 1 30 0 1 40 0 1 50 0 1 60 0 1 70 0 1 80 0 and ends like this 249 24950 0 249 24960 0 249 24970 1 249 24980 0 249 24990 1 It contains a total of ~350,000 lines. If I start gnuplot and simply run "splot <filename>" I get a plot, so the file is being read properly. This simple plot, though, cannot really be used, since it's just a mass of red points with no way to see surfaces or anything useful. So I figured that the "pm3d" capability is probably what I need. But if I type: set pm3d splot <filename> with pm3d I get a set of orthogonal axes, a pretty colour bar, and no points or surfaces plotted. I don't understand why I'm not seeing anything. So I have two simple questions: 1. Why don't I see any points/surface plotted? 2. What commands do I need to issue in order to see the data? Doc Evans |
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From: boyce w. <lis...@lo...> - 2006-11-11 13:12:17
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CardDebtFree Overnight 312.683.5160 In truth, so great are its powers that even the dead may be restored to life, provided the blood has not yet chilled.In presenting you with this appliance, I feel I am bestowing upon you the greatest blessing and most longed-for boon ever bequeathed of suffering humanity Here he held the slender, dull-colored metallic band toward the boy |
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From: Sam S. <sd...@po...> - 2006-11-10 02:30:10
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I want to add a title that would encompass all plots on the multiplot page. How do I do that? if this is not possible, maybe I could write to the page directly? Thanks. Sam. |
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From: Barracuda S. F. <pos...@gr...> - 2006-11-09 04:21:12
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QkFOTkVEIEZJTEVOQU1FIEFMRVJUCgpZb3VyIG1lc3NhZ2UgdG86IGJldmVy bHlAZ3JjLm9yZwp3YXMgYmxvY2tlZCBieSBvdXIgU3BhbSBGaXJld2FsbC4g VGhlIGVtYWlsIHlvdSBzZW50IHdpdGggdGhlIGZvbGxvd2luZyBzdWJqZWN0 IGhhcyBOT1QgQkVFTiBERUxJVkVSRUQ6CgpTdWJqZWN0OiBZb3VyIGRvY3Vt ZW50CgpBbiBhdHRhY2htZW50IGluIHRoYXQgbWFpbCB3YXMgb2YgYSBmaWxl IHR5cGUgdGhhdCB0aGUgU3BhbSBGaXJld2FsbCBpcyBzZXQgdG8gYmxvY2su CgoK |
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From: jwanro b. <ab...@ya...> - 2006-11-04 11:07:06
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Dear all I would like to ask you how I can use gnuplot program to find out the minimum run time between Insertion Sort 5 + n2 and Merge Sort 80 + 40n log10 because I tried to find some thing similer in gnuplot built-in documentation but I could not and finely thank you very much with my best regard. jwanro baldar Send instant messages to your online friends http://uk.messenger.yahoo.com |
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From: <HBB...@t-...> - 2006-11-02 21:27:48
|
bergen wrote: > I'm looking for a terminal type that supports: > > * plotting lines with linestyle of dotted/dashed > * applying a color to the above dotted/dashed lines > * ideally change the linewidth of this colored dotted/dashed line > * terminal type that be easily embedded into HTML and viewed with base > web browser Define "base" web browsers. SVG would be your best bet if the target audience can display it. Failing that, you'll have to generate postscript and render it to PNG or GIF. |
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From: bergen <ber...@co...> - 2006-11-02 15:37:45
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I'm looking for a terminal type that supports: * plotting lines with linestyle of dotted/dashed * applying a color to the above dotted/dashed lines * ideally change the linewidth of this colored dotted/dashed line * terminal type that be easily embedded into HTML and viewed with base web browser I've been using png without the dashed/dotted line support and had thought this might have been in the works for png in 4.2. But that doesn't seem to be the case. Suggestions? Thanks |
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From: horatiu <cl...@ya...> - 2006-11-02 04:36:34
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Hans-Bernhard Br=C3=B6ker-2 wrote: >=20 > This is a known problem. For some strange reason, Mandriva decided to=20 > distribute a binary package of gnuplot-4.0 that doesn't work in the=20 > default setting of their distribution.=20 >=20 Thank you. Finally I installed the RPM from Md2006 release and it's works fine. --=20 View this message in context: http://www.nabble.com/gnuplot-error-tf2543860= .html#a7127710 Sent from the Gnuplot - User mailing list archive at Nabble.com. |
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From: jo f. <ssa...@ci...> - 2006-11-01 23:13:32
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> <img alt="" src="cid:B7B...@ci..." height="690" width="591"><br> Indeed, the instrument now worked better than at any time since he had reached the cannibal island, and the boy was greatly delighted The wind at first sent him spinning away to the south, but he continued to rise until he was above the air currents, and the storm raged far beneath him.<br> Then he set the indicator to the northwest and breathlessly waited to see if it would obey.<br> Hurrah! away he sped at a fair rate of speed, while all his anxiety changed to a feeling of sweet contentment His success had greatly surprised him, but he concluded that the jar caused by dropping the instrument had relieved the pressure upon the works, and so helped rather than harmed the free action of the electric currents.<br> While he moved through the air with an easy, gliding motion he watched with much interest the storm raging below.<br> Above his head the sun was peacefully shining and the contrast was strange and impressive After an hour or so the storm abated, or else he passed away from it, for the deep blue of the ocean again greeted his eyes, He dropped downward until he was about a hundred feet above the water, when he continued his northwesterly course.<br> But now he regretted having interfered for a moment with the action of the machine, for his progress, instead of being swift as a bird's flight, became slow and jerky, nor was he sure that the damaged machine might not break down altogether at any moment.<br> Yet so far his progress was in the right direction, and he resolved to experiment no further with the instrument, but to let it go as it would, so long as it supported him above the water.<br> However irregular the motion might be, it was sure, if continued, to bring him to land in time, and that was all he cared about just then, When night fell his slumber was broken and uneasy, for he wakened more than once with a start of fear that the machine had broken and he was falling into the sea.<br> Sometimes he was carried along at a swift pace, and again the machine scarcely worked at all; so his anxiety was excusable.<br> The following day was one of continued uneasiness for the boy, who began to be harrassed by doubts as to whether, after all, he was moving in the right direction The machine had failed at one time in this respect and it might again.<br> He had lost all confidence in its accuracy, In spite of these perplexities Rob passed the second night of his uneven flight in profound slumber, being exhausted by the strain and excitement he had undergone.<br> When he awoke at daybreak, he saw, to his profound delight, that he was approaching land.<br> The rising sun found him passing over a big city, which he knew to be Boston.<br> He did not stop, The machine was so little to be depended upon that he dared make no halt But he was obliged to alter the direction from northwest to west, and the result of this slight change was so great a reduction in speed that it was mid-day before he saw beneath him the familiar village in which he lived.<br> Carefully marking the location of his father's house, he came to a stop directly over it, and a few moments later he managed to land upon the exact spot in the back yard whence he had taken his first successful flight, 7.<br> The Demon Becomes Angry When Rob had been hugged and kissed by his mother and sisters, and even Mr.<br> Joslyn had embraced him warmly, he gave them a brief account of his adventures.<br> The story was received with many doubtful looks and much grave shaking of heads, as was quite natural under the circumstances, I hope, my dear son, said the father, that you have now passed through enough dangers to last you a lifetime, so that hereafter you will be contented to remain at home Oh, Robert! cried his mother, with tears in her loving eyes, you don't know how we've all worried about you for the past week! A week? asked Rob, with surprise.<br> </BODY></HTML> |
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