[Kst] ASCII data - confusion about multiple plots
Daniel Miller
dmiller at vitalconnect.com
Thu Feb 4 01:45:13 UTC 2016
BTW, *most* of the CL examples do not work with the Windows kst; running
from command line *only* works if data filename is specified first on
line... is that a bug?? Or is there just some other option that I need to
use for filename??
On Wed, Feb 3, 2016 at 5:42 PM, Daniel Miller <dmiller at vitalconnect.com>
wrote:
> /filed/failed/
>
> On Wed, Feb 3, 2016 at 5:41 PM, Daniel Miller <dmiller at vitalconnect.com>
> wrote:
>
>> 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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