[Kst] ASCII data - confusion about multiple plots
Daniel Miller
dmiller at vitalconnect.com
Thu Feb 4 01:41:57 UTC 2016
Okay, I have three files - accel_x.asc, accel_y.asc, accel_z.asc
Each contains two columns:
bsp_count accel_x
84835791 -104
84835812 -104
84835832 -104
84835853 -104
...
I executed the following command:
c:\kst-2.0.8\bin\kst2 -P accel_x.asc -x bsp_count -y accel_x accel_y.asc -x
bsp_count -y accel_y accel_z.asc -x bsp_count -y accel_z
However, command filed with:
"No data files specified"
I got this message previously, when I tried following the command-line
instructions literally; i.e., I put options before data file. I fixed it
by using for example:
c:\kst-2.0.8\bin\kst2 rssi.asc -x bsp_count -y rssi
So that filename was first. However, I cannot do that in this case with
multiple filenames...
On Wed, Feb 3, 2016 at 5:26 PM, Daniel Miller <dmiller at vitalconnect.com>
wrote:
> Anyway, I'll test out your test... if that works, I'll be done!!
> Thanks!!
>
>
> On Wed, Feb 3, 2016 at 5:25 PM, Daniel Miller <dmiller at vitalconnect.com>
> wrote:
>
>> I'm using kst V2.0.8 on Windows 7, 64-bit.
>> When I do --help, I get a pop-up window that shows only:
>> KST Command Line Usage
>> ************************
>> *** Load a kst file: ***
>> kst [OPTIONS] kstfile
>>
>> [OPTIONS] will override the datasource parameters for all data sources in
>> the kst file:
>> -F <datasource>
>> -f <startframe>
>> -n <numframes>
>> -s <frames per sample>
>> -a (apply averaging filter: requires -s)
>>
>> ************************
>>
>> it *does* have a "Show Details..." button, but that opens up help in a
>> 5-line scrolling window, but it's rather hard to read. Actually, I
>> probably could copy-and-paste that window into a doc, but I ended up
>> getting the data from somewhere else...
>>
>>
>> On Wed, Feb 3, 2016 at 4:06 PM, Barth Netterfield <
>> netterfield at astro.utoronto.ca> wrote:
>>
>>> Hmmm... What version of kst are you using? what platform?
>>>
>>> I am on Linux.
>>>
>>> For a reasonably recent version of kst2:
>>>
>>> If I have files d1.dat, d2.dat, and d3.dat. Each are 2 column data,
>>> delimited to whatever you have set the default to in the gui. (by default,
>>> this is space).
>>>
>>> $ kst2 -P 1 d1.dat -x 1 -y 2 d2.dat -x 1 -y 2 d3.dat -x 1 -y 2
>>>
>>> will put all three curves in the same plot
>>>
>>> Whe I try kst2 --help, I get:
>>>
>>> $ kst2 --help
>>> KST Command Line Usage
>>> ************************
>>> *** Load a kst file: ***
>>> kst [OPTIONS] kstfile
>>>
>>> [OPTIONS] will override the datasource parameters for all data sources
>>> in the kst file:
>>> -F <datasource>
>>> -f <startframe>
>>> -n <numframes>
>>> -s <frames per sample>
>>> -a (apply averaging filter: requires -s)
>>>
>>> ************************
>>> *** Read a data file ***
>>> kst datasource OPTIONS [datasource OPTIONS []]
>>>
>>> OPTIONS are read and interpreted in order. Except for data object
>>> options, all are applied to all future data objects, unless later
>>> overridden.
>>> Output Options:
>>> --print <filename> Print to file and exit.
>>> --landscape Print in landscape mode.
>>> --portrait Print in portrait mode.
>>> --Letter Print to Letter sized paper.
>>> --A4 Print to A4 sized paper.
>>> --png <filename> Render to a png image, and exit.
>>> File Options:
>>> -f <startframe> default: 'end' counts from end.
>>> -n <numframes> default: 'end' reads to end of file
>>> -s <frames per sample> default: 0 (read every sample)
>>> -a apply averaging filter: requires -s
>>>
>>> Ascii File Options - for ascii files only: these are all stick
>>> --asciiDataStart <Line> Data starts here. Files start at line 1.
>>> --asciiFieldNames <Line> Field names are in this row.
>>> --asciiNoFieldNames Fields are named for their data column
>>> --asciiReadUnits <Line> Read units from line <Line>
>>> --asciiNoUnits Do not read units
>>> --asciiSpaceDelim Columns are Space/tab delimited
>>> --asciiDelim <char> Columns are dlimited with <char>
>>> --asciiFixedWidth <w> Columns have width <w>
>>> --asciiNoFixedWidth Columns are delimited, not fixed width
>>> --asciiDecimalDot Use a . as a decimal separator (ie, 10.1)
>>> --asciiDecimalComma Use a , as a decimal separator (ie, 10,1)
>>> Position:
>>> -P <plot name>: Place curves in one plot.
>>> -A Place future curves in individual plots.
>>> -m <columns> Layout plots in columns
>>> -T <tab name> Place future curves a new tab.
>>> Appearance
>>> -d: use points for the next curve
>>> -l: use lines for the next curve
>>> -b: use bargraph for the next curve
>>> --xlabel <X Label> Set X label of all future plots.
>>> --ylabel <Y Label> Set Y label of all future plots.
>>> --xlabelauto AutoSet X label of all future plots.
>>> --ylabelauto AutoSet Y label of all future plots.
>>> Data Object Modifiers
>>> -x <field>: Create vector and use as X vector for
>>> curves.
>>> -e <field>: Create vector and use as Y-error vector
>>> for next -y.
>>> -r <rate>: sample rate (spectra & spectograms).
>>> Data Objects:
>>> -y <field> plot an XY curve of field.
>>> -p <field> plot the spectrum of field.
>>> -h <field> plot a histogram of field.
>>> -z <field> plot an image of matrix field.
>>>
>>> ****************
>>> *** Examples ***
>>>
>>> Data sources and fields:
>>> Plot all data in column 2 from data.dat.
>>> kst data.dat -y 2
>>>
>>> Same as above, except only read 20 lines, starting at line 10.
>>> kst data.dat -f 10 -n 20 -y 2
>>>
>>> ... also read col 1. One plot per curve.
>>> kst data.dat -f 10 -n 20 -y 1 -y 2
>>>
>>> Read col 1 from data2.dat and col 1 from data.dat
>>> kst data.dat -f 10 -n 20 -y 2 data2.dat -y 1
>>>
>>> Same as above, except read 40 lines starting at 30 in data2.dat
>>> kst data.dat -f 10 -n 20 -y 2 data2.dat -f 30 -n 40 -y 1
>>>
>>> Specify the X vector and error bars:
>>> Plot x = col 1 and Y = col 2 and error flags = col 3 from data.dat
>>> kst data.dat -x 1 -e 3 -y 2
>>>
>>> Get the X vector from data1.dat, and the Y vector from data2.dat.
>>> kst data1.dat -x 1 data2.dat -y 1
>>>
>>> Placement:
>>> Plot column 2 and column 3 in plot P1 and column 4 in plot P2
>>> kst data.dat -P P1 -y 2 -y 3 -P P2 -y 4
>>>
>>>
>>>
>>> On Wed, Feb 3, 2016 at 6:59 PM, Daniel Miller <dmiller at vitalconnect.com>
>>> wrote:
>>>
>>>> I would appreciate the command-line args to handle plotting multiple
>>>> files; the --help argument only documents 5 arguments, and doesn't even
>>>> work the way it is documented... I found a more complete command-line help
>>>> in the Kst Handbook, but task like these aren't all that obvious...
>>>>
>>>>
>>>> On Wed, Feb 3, 2016 at 3:52 PM, Barth Netterfield <
>>>> netterfield at astro.utoronto.ca> wrote:
>>>>
>>>>> Yes:
>>>>> the last page of the data wizard gives an option to put the curve in a
>>>>> plot that already exists.
>>>>> The curve creation dialog has an option to put the curve in a plot
>>>>> that already exists.
>>>>> You can do it from the command line even easier. I can give you the
>>>>> incantation if you can't clean it from kst2 --help.
>>>>>
>>>>> cbn
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Wed, Feb 3, 2016 at 6:36 PM, Daniel Miller <
>>>>> dmiller at vitalconnect.com> wrote:
>>>>>
>>>>>> hmmm... well, I prefer lines to points in kst2; the plots with points
>>>>>> are sort of hard to utilize, but I'll take a look at it and see what it
>>>>>> looks like.
>>>>>>
>>>>>> Alternately, is there some way to input three data files, but have
>>>>>> them plotted on one plot?? I haven't really seen that in the manual
>>>>>> either...
>>>>>>
>>>>>>
>>>>>> On Wed, Feb 3, 2016 at 3:33 PM, Barth Netterfield <
>>>>>> netterfield at astro.utoronto.ca> wrote:
>>>>>>
>>>>>>> As you have sort of figured out, kst's data source model will want
>>>>>>> you to have 3 different ascii files in this case.
>>>>>>>
>>>>>>> But, if you just want to plot points, and not lines, you can use NaN
>>>>>>> as your bad data marker.
>>>>>>>
>>>>>>> On Wed, Feb 3, 2016 at 6:30 PM, Daniel Miller <
>>>>>>> dmiller at vitalconnect.com> wrote:
>>>>>>>
>>>>>>>> I have kst2 working with single plot stream... that works very
>>>>>>>> nicely. At this point, I'm using space as separator between fields.
>>>>>>>>
>>>>>>>> However, we have a couple of data streams which contain multiple
>>>>>>>> data (x, y, z); in this situation, what our data would look like is (
>>>>>>>> timestamp, data), but the data would be one of { data_x, data_y, data_z }.
>>>>>>>> In other words, the data stream that I receive from the hardware, delivers
>>>>>>>> data_x, data_y, data_z in separate messages, with different timestamps.
>>>>>>>>
>>>>>>>> I want kst2 to read this ascii data file and plot 3 separate graphs
>>>>>>>> on one plot.
>>>>>>>> I'm a little confused about how to do this, though;
>>>>>>>>
>>>>>>>> for example, say I have a line with data for data_z; this will look
>>>>>>>> something like:
>>>>>>>> timestamp data_z
>>>>>>>> however, I want one file to contain data for all three streams, so
>>>>>>>> I'm guessing I need to have empty fields for the not-relevant data; maybe
>>>>>>>> something like:
>>>>>>>> timestamp unused_x unused_y data_z
>>>>>>>> timestamp unused_x data_y unused_z
>>>>>>>> etc...
>>>>>>>>
>>>>>>>> So first off, I probably have to use a different separator rather
>>>>>>>> than space for separator; but even with comma, I still have a problem; for
>>>>>>>> example:
>>>>>>>>
>>>>>>>> timestamp, 0, 0, data_z
>>>>>>>> timestamp, 0, data_y, 0
>>>>>>>>
>>>>>>>> Except that in some cases, 0 is valid data; I *think* I need some
>>>>>>>> way to represent "invalid data" in the unused fields.
>>>>>>>>
>>>>>>>> Is this understandable?? How do I handle this??
>>>>>>>> Dan Miller
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> Kst mailing list
>>>>>>>> Kst at kde.org
>>>>>>>> https://mail.kde.org/mailman/listinfo/kst
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> C. Barth Netterfield
>>>>>>> University of Toronto
>>>>>>> 416-845-0946
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Kst mailing list
>>>>>>> Kst at kde.org
>>>>>>> https://mail.kde.org/mailman/listinfo/kst
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Kst mailing list
>>>>>> Kst at kde.org
>>>>>> https://mail.kde.org/mailman/listinfo/kst
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> C. Barth Netterfield
>>>>> University of Toronto
>>>>> 416-845-0946
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Kst mailing list
>>>>> Kst at kde.org
>>>>> https://mail.kde.org/mailman/listinfo/kst
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
>>>> Kst mailing list
>>>> Kst at kde.org
>>>> https://mail.kde.org/mailman/listinfo/kst
>>>>
>>>>
>>>
>>>
>>> --
>>> C. Barth Netterfield
>>> University of Toronto
>>> 416-845-0946
>>>
>>>
>>> _______________________________________________
>>> Kst mailing list
>>> Kst at kde.org
>>> https://mail.kde.org/mailman/listinfo/kst
>>>
>>>
>>
>
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