Scatter plot - any libraries available

hi,
i need to do a scatter plot for a given data. i gotta plot a line or curve which fits the data.
is there any packages available that i can import in my project?
i also need to output that as a image.
guys, also tell me how do i import that in netbeans.
i'm a beginner so please be elaborative.

The free chart library JFreeChart
Example chart

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Scatter plot graphs, more than 2 series possible?

It's been very difficult for me to put 3 or 4 series of data in scatter graphs and connect the dots with lines as in Excel, it just doesn't allow me. I made a graph before using line graph model but it turns out that in the x axis (which in this case is time in weeks) I need to show the distance proportionally (i.e. 0,2,6,12 and 16 weeks) and I can't find how to do it with a simple line graph. Tried in excel and is easy using the scatter plot graph (very simple, using exactly the same data arrangement). But numbers does not accept the series of data (it only accepts X,Y per series) and in second place there is not lines connecting the dots. Any of you guys have a suggestion?. I'd really prefer to use numbers bit do not why is so difficult to scatter graph the data. Thanks

The default for X-Y pairs can actually be pretty handy, though often it is not. You can easily turn it into one X and a bunch of Y's. Connecting lines are also available.
My assumption from your post is you have a column of X values and several columns of Y values.
1) All data for a scatter plot must be in "normal" data cells, none in header cells.
2) Select all the X & Y data and create a scatter chart.
3) There is a "gear" at the top left of the colored box in the table that indicates the data in the chart. Click it and choose to share X values. Now you should have one column labeled "X" and several labeled "Y" and your chart will show each Y as a separate series.
4) With the chart selected (the whole chart, not one of the series), go to the Chart tab of the inspector, go to the series tab, look for the words "connect points" and choose what kind of line you want to connect the points. Alternatively or additionally, you could make trendline curves by clicking on "advanced". Also, you can do them one at a time and choose different settings for each series by selecting each series separately.
If you have gaps in your Y data, it will not connect the points on either side of the gap, you will have a missing line segment.
If your X data is unsorted, some connecting lines may go right-to-left, not left-to-right.

JavaFX Scatter plots

Hello all,
I have searched through these forums and not found anything. Is there any optimal way in which to add large amounts of data to a javaFX Scatterplot. It seems like attempting to plot more than 200 points slows down the software drastically. I have attempted the following approaches:
Approach 1:
Instantiate a new scatter plot whenever a new data set is available.
Approach 2:
Bind the data (member of scatterplot) to a local Sequence of Series. Insert my new data into a new Series and then insert this sequence (after deleting old data) into the sequence which is bound to the data (member of scatterplot).
Approach 3:
Directly delete data from the series present in my intial plot and insert into this sequence.
All of the approaches seem phenomenally slow. Does anyone have write up on what the best manner is to display a large set of x,y data (something on the order of 5000 points). Or is it necessary to write a wrapper around the javaFX code which checks the 5000 points and plots only those that are visible (not obscured by the other points)?
Thoughts?
Thank you!
-Greg

LS,
You presently get this:
If you use the Filter in the Reorganize panel to show only non-blank rows, you can get this:
Jerry

Add point to scatter plot each time a button is pressed

Hi folks,
Apologies if this has been answered elsewhere, I am new to LabVIEW and trying to get an experiment up-and-running quickly!
I was wondering if anybody would have general pointers or code examples on how to create a 2D scatter plot, to which a data point is added each time a button is pressed.
I am measuring a gauge pressure and a force (from a load cell). I would like the scatter plot to add another data point each time I press a button, so that a history of my datapoints is shown. It would also be quite nice is this plot could then be exported as a .jpg using another button, but this is not critical.
A seperate button would also be available to clear the scatter plot.
My current thinking is that this can be done by 'adding to an array', - presumably the chart would refresh each time an element was added to the array, but I am struggling a little bit with how to do this.
If anybody has any suggestions, I would be very grateful for them.
Many thanks,
Euan

Hi Euan,
If you want to have your data shown in real time (and I'm assuming you do) then you'll need to use a Waveform Chart. The chart is able to update itself each time a value is written to it.
The event structure is your friend here: you can write a case to update the chart each time a button is pressed. You can also create cases for the other situations you mentioned (clear chart, export jpg etc.)
If you don't care about the chart updating in real time then you can use your idea of updating an array and then use a Waveform Graph to plot the datapoints at the end of your program.
Take a look at the LabVIEW Basics course and the Examples for info on how to implement the event structure. If you run into any problems just post your VI and we'll see if we can't help you fix them.
-CC
"If anyone needs me, I'll be in the Angry Dome!"

Trendline in Scatter plot

Hi,
I have a couple question on Power View 2010
1. I want to know if I can plot regression Trendlines(Linear/polynomial/power) on scatter plot?
2. Navigation between pages- Is it possible to navigate between report pages in Power View 2010 by passing parameters from the first page to the next page?
3. I have a report that has 3 pages. I want to create 2 pages in SSRS 2012 and one in Power View 2010. Is it possible to navigate between these applications and also pass parameters in the URL?
Thanks in advance.
Ankit

The reason why it hangs is because you have 2 event structures inside a loop. You should only have one event structure in a loop. This is documented in the LabVIEW Help. With 2 event structures one of them will block the other.
Your code is also about 3 times larger than it needs to be:
To create the array of names for the dropdowns you only need to autoindex a for-loop from the 2D array of data and use the Format Into String function. You don't actually need to use the values - you only need to autoindex the for-loop.
Using Delete From Array and Reshape Array just to pull out a row is simply silly (not to mention a Rube Goldberg). That's what Index Array is for.
In the Cursor Move event case you only need one function: Index Array. The point index is already available to you from the event case's data.
Half of the code really belongs outside of the while loop since none of that data ever changes, so what's the point of regenerating it each time?
Instead of using 2 Index Array functions just to get the list of names, wire a True to the Read From Spreadsheet File's transpose? input and use the first row output.
I've attached a simplified version of your VI.
Attachments:
PCoption2_MOD.vi ‏34 KB

How do you make a horizontal average line in a scatter plot?

In any version of Numbers, is there a way to make a horizontal average trendline? Not a "moving average", but one line that is the average that goes through the data points on a scatter plot.

sflakg wrote:
hit a few roadblocks.
I tried:
1. using the crop tool to make the canvas bigger with a transparent background.
2. Used lasso tool over people in group shot (total of 5) and saved the selection
3. Tried content aware scale to raise the image, but it keeps stretching out the people.
Any thoughts on what else I could try?
Rather than trying to stretch it taller, try to squeeze it horizontally. There are methods for telling it what to protect in the image if it gets touchy.
Another possibility is to use Content Aware Fill to make up part at the top and bottom, without any stretching.
-Noel

How to select all (dots) in a scatter plot matrix?

I have a scatter plot matrix, and I'm manually changing the color of each trend line, which probably isn't the best way but it's an easy but time consuming way to do it. I can't feasibly change the color/stroke of every single scatter plot dot in every single scatter plot graph of the matrix. I'm trying various Select --> Same or Select --> All but it keeps trying to change everything, from the line to the border to the dots. I am not sure if I can group the dots and select all or something. Is there a way to select all of the dots and just the dots?

I feel like I should have posted screenshots of my graphs for all of my questions. In any event I've been manually changing the colors of the lines and the dots (see the few graphs on the left, I highlighted the inside of the graph and changed the dots and the line and then just manually changed the line back)

How do I connect the scatter plot points in the newest numbers?

I just made a scatter plot for biology and I was wondering how I connect the points with lines

It sounds like all of your wireless clients (computers & printer) are having issues with the overall signal quality of your Wi-Fi network.
I suggest that you check out the following Apple Support article on the sources of Wi-Fi interference and try to identify & eliminate as many as possible to improve your wireless network.
You may also find the following Macworld article helpful on troubleshooting for Wi-Fi interference. Although this article is specific to the AirPort routers, it can equally apply to any manufacturers' product.

Plotting Data Incorrectly in a Scatter Plot

I am trying to plot a graph using a scatter plot in Numbers, and all of the data points are correct except for one. If you look at the data, you can see that the point that is at .00360 on the y axis(the highest point on the graph) is supposed to have an x value of .001 but instead it is too far to the right (closer to .1). This is throwing off my graph and I really need to get this fixed. Below are the links to the data table and the graph. Thanks for any help!
http://img686.imageshack.us/img686/7/picture3wc.png
http://img20.imageshack.us/img20/2035/picture4pe.png

Hi Tom,
I tried recreating your table and chart, typing in the numbers rather than having any of them calculated, and manually assigning min and max values to both axes to match yours.
The chart came out with all data points where expected.
I did notice another difference in the curve though—where yours shows three data points forming a concave-toward-the-origin section (at the leftmost portion that is correctly plotted), mine shows four data points. That led me to count the points and find that there is one point—(0.139,0.00309)—missing from your chart.
While I don't see from doing this what may be wrong with your chart, it did bring a workaround to mind that should get you a useable chart before your deadline.
Insert a new (plain) table into your document and resize it to the minimum needed to hold the two columns of data.
Select the cells containing the X axis data and Copy.
Click on cell A1 of the new table and go Edit > Paste Values.
Repeat for the Y axis data, placing it in column B of the new table.
Select the data block in the new table then insert a scatter chart.
If you still get the error, manually edit the data in the cells causing the error.
That should get you through the short term. I think someone may have to look at the actual file to solve the underlying problem.
Regards,
Barry

How to Draw 3-D scatter plot in J2ME?

HI all
I am new in J2ME And I need to draw a three dimensional scatter plot in J2ME application. Can any body help me how to do so? It's urgent and I am eagerly waiting for your response. Even if you can tell me how to draw a 3-D point like (x,y,z)=(3,5,8) in J2ME?

I've removed the thread you started in the Java3D forum.
db

XY scatter plot in xcelsius

Hi,
Any XY scatter plot in xcelsius ,can you pass on me the add-ons url.
FYI:I have already tried out xy chart in xcelsius.It is not giving the exact visuval.
Thanks ,
satish.p

Hi Peter,
This is one of the most requested features for the JFreeChart project. It hasn't been added yet, but it is very near the top of the to-do list.
Regards,
Dave Gilbert
JFreeChart Project Leader
P.S. For anyone who is interested in JFreeChart, the link is:
http://www.object-refinery.com/jfreechart/index.html

Scatter plot with dates

The one reason i use scatter plots is to make the X axis my dates. so i see the duration between data points as real distance horizontally. I cannot for the life of me figure out how to do this on the ipad. It seems to not have a way of tweaking the data source so that I can tell it that column B (dates) is my x axis, and column C (lets say remaining data MB's, lets use something everyone on a 250 plan can associate with) is my actual data point to plot.
Anyone figure out this one yet?
Thanks,
Jason

ok, i was able to 'kinda' get it to work (not the labelling, but the scatter plot). It seems you have to select the date column first when selecting data, then drag over to the columns of plotted data and it -might- recognize the dates as the x axis. it took me a good 5 minutes playing to get it to go right.
I also had to check the "Share X values" option under the gear button.
as for the labels, it has a "Number format" and a "Same as source", but if you select same as source, it doesn't give you any choices but plain number for formatting. Same as source doesn't work at all right now for dates.
We both need to submit tickets with apple.com\feedback to let them know. I noticed other little fixes that were not documented in the 1.1 update that people had been submitting tickets on the past few weeks.
Thanks,
Jason
Jason

Scatter plot line width

First off, I'm using the trial version of iWork '09. So I want to eventually put a chart into keynote to present to my colleagues, however, putting the chart up on a projector requires me to have a thicker plot line. So if I use a scatter plot, my axis' turn out great, but I cannot adjust the line's width. I don't want symbols, I just want a line connecting the points. If I use the line chart instead of the scatter, the x-axis displays "Untitled 1, Untitled 2" as the labels. I can't change them to the corresponding numbers which is annoying. I can change everything else fine: axis line width, font size, etc. Its just eh connecting line I'm having trouble with

Actually, found a roundabout way to do this. Have to use line chart and in the x-axis label, you have to insert your formula for what cells you want such as Table 1 :: B212:B912 and just set the category counter to only include one label every so many counts. Kind of a pain, but works. However, can't have only the few tickmarks (should be 5 labels and corresponding 5 tickmarks in my case, but I have 5 labels and 700 tickmarks), all are shown instead. It tacks all of the labels individually, but you can choose which ones are shown, but cannot remove tickmarks... Any ideas?
Message was edited by: chemgoof

Scatter Plot With Multiple Data Series

Hello,
I would greatly appreciate any help you guys could give me.
I need one scatter plot that shows 4 different groups of data. They all go with the same X and Y axis values, though.
I can get a scatter graph with ONE group, but it won't let me add in another one. I tried the clicking and dragging the new cells, and the shift clicking, but the data just will not go into the chart. It's like it doesn't recognize it.
I think I read something about sharing the X values? But I don't know how to do that?
Thanks a ton in advance!!

Pop,
Badunit's example is one possible arrangement that you might have described; that is, one column for X values and several columns for Y values. This is the case when you should respond that you are sharing X-values. With all the data in one table, you can select it all at once, so you don't have the problem with dragging additional series into the chart.
The Numbers User Guide PDF's first chapter is the place to start getting your bearings - you will learn how to distinguish Header vs. Body rows and columns. It's worth the effort to take another look at it.
Since you are using a Scatter Chart, it's important not to use a header column for X because X values must be Numeric, as opposed to Text.
Jerry

Scatter plot using time series function - Flash charting

Apex 3 + XE + XP
I am trying to build a time series scatter plot chart using flash chart component.
Situation :
On each scout date counts are taken within each crop. I want to order them by scout dates and display them in a time series chart. Each series represents different crop.
I am posting the two series queries I used
Queries:
Series 1
select     null LINK, "SCOUTDATES"."SCOUTDATE" LABEL, INSECTDISEASESCOUT.AVERAGECOUNT as "AVERAGE COUNT" from     "COUNTY" "COUNTY",
     "FIELD" "FIELD",
     "VARIETYLIST" "VARIETYLIST",
     "INSECTDISEASESCOUT" "INSECTDISEASESCOUT",
     "SCOUTDATES" "SCOUTDATES",
     "CROP" "CROP"
where "SCOUTDATES"."CROPID"="CROP"."CROPID"
and     "SCOUTDATES"."SCOUTID"="INSECTDISEASESCOUT"."SCOUTID"
and     "CROP"."VARIETYID"="VARIETYLIST"."VARIETYLISTID"
and     "CROP"."FIELDID"="FIELD"."FIELDID"
and     "FIELD"."COUNTYID"="COUNTY"."COUNTYID"
and      "INSECTDISEASESCOUT"."PESTNAME" ='APHIDS'
and     "VARIETYLIST"."VARIETYNAME" ='SUGARSNAX'
and     "COUNTY"."COUNTNAME" ='Kings' AND CROP.CROPID=1
order by SCOUTDATES.SCOUTDATE' ASC
Series 2:
select     null LINK, "SCOUTDATES"."SCOUTDATE" LABEL, INSECTDISEASESCOUT.AVERAGECOUNT as "AVERAGE COUNT" from     "COUNTY" "COUNTY",
     "FIELD" "FIELD",
     "VARIETYLIST" "VARIETYLIST",
     "INSECTDISEASESCOUT" "INSECTDISEASESCOUT",
     "SCOUTDATES" "SCOUTDATES",
     "CROP" "CROP"
where "SCOUTDATES"."CROPID"="CROP"."CROPID"
and     "SCOUTDATES"."SCOUTID"="INSECTDISEASESCOUT"."SCOUTID"
and     "CROP"."VARIETYID"="VARIETYLIST"."VARIETYLISTID"
and     "CROP"."FIELDID"="FIELD"."FIELDID"
and     "FIELD"."COUNTYID"="COUNTY"."COUNTYID"
and      "INSECTDISEASESCOUT"."PESTNAME" ='APHIDS'
and     "VARIETYLIST"."VARIETYNAME" ='SUGARSNAX'
and     "COUNTY"."COUNTNAME" ='Kings' AND CROP.CROPID=4
order by SCOUTDATES.SCOUTDATE' ASC
Problem
As you can see the observations are ordered by scout date. However when the chart appears, the dates dont appear in order. The chart displays the data from crop 1 and then followed by crop 4 data, which is not exactly a time series chart. Does flash chart support time series or they have no clue that the data type is date and it should be progressive in charting ? I tried to use to_char(date,'j') to converting them and apply the same principle however it did not help either.
Any suggestions ?
Message was edited by:
tarumugam
Message was edited by:
aru

Arumugam,
All labels are treated as strings, so APEX will not compare them as dates.
There are two workarounds to get all your data in the right order:
1) Combine the SQL statements into single-query multi-series format, something like this:
select null LINK,
"SCOUTDATES"."SCOUTDATE" LABEL,
decode(CROP.CROPID,1,INSECTDISEASESCOUT.AVERAGECOUNT) as "Crop 1",
decode(CROP.CROPID,4,INSECTDISEASESCOUT.AVERAGECOUNT) as "Crop 4"
from "COUNTY" "COUNTY",
"FIELD" "FIELD",
"VARIETYLIST" "VARIETYLIST",
"INSECTDISEASESCOUT" "INSECTDISEASESCOUT",
"SCOUTDATES" "SCOUTDATES",
"CROP" "CROP"
where "SCOUTDATES"."CROPID"="CROP"."CROPID"
and "SCOUTDATES"."SCOUTID"="INSECTDISEASESCOUT"."SCOUTID"
and "CROP"."VARIETYID"="VARIETYLIST"."VARIETYLISTID"
and "CROP"."FIELDID"="FIELD"."FIELDID"
and "FIELD"."COUNTYID"="COUNTY"."COUNTYID"
and "INSECTDISEASESCOUT"."PESTNAME" ='APHIDS'
and "VARIETYLIST"."VARIETYNAME" ='SUGARSNAX'
and "COUNTY"."COUNTNAME" ='Kings'
AND CROP.CROPID in (1,4)
order by SCOUTDATES.SCOUTDATE ASC2) Union the full domain of labels into your first query. Then the sorting will be applied to the full list, and the values of the second series will be associated with the matching labels from the first.
- Marco

Scatter plot - any libraries available

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