[Kst] ASCII data - confusion about multiple plots
Daniel Miller
dmiller at vitalconnect.com
Thu Feb 4 01:42:17 UTC 2016
/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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