g.gui.tplot(1grass)

NAME
g.gui.tplot - Plots the values of temporal datasets.

KEYWORDS
general, GUI, temporal, plot

SYNOPSIS
g.gui.tplot
g.gui.tplot --help
g.gui.tplot [-hl] [stvds=name[,name,...]] [strds=name[,name,...]] [coordinates=east,north] [cats=string] [attr=string] [output=name] [csv=name] [title=string] [xlabel=string] [ylabel=string] [size=string] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

  Flags:

-h
    Set the header of CSV file, to be used with csv option

-l
    Show simple linear regression model line

--overwrite
    Allow output files to overwrite existing files

--help
    Print usage summary

--verbose
    Verbose module output

--quiet
    Quiet module output

--ui
    Force launching GUI dialog

  Parameters:

stvds=name[,name,...]
    Name of the input space time vector datasets

strds=name[,name,...]
    Name of the input space time raster datasets

coordinates=east,north
    Coordinates

cats=string
    Categories of vectors features
    To use only with stvds

attr=string
    Name of attribute
    Name of attribute which represent data for plotting

output=name
    Name for output graphical file
    Full path for output file containing the plot, ddd extension to specify format (.png, .pdf, .svg)

csv=name
    Name for output CSV file
    Full path for the CSV file containing the plotted data

title=string
    Title for plot
    The title for the output plot

xlabel=string
    Label for x axis
    The x axis label for the output plot

ylabel=string
    Label for y axis
    The y axis label for the output plot

size=string
    Size of output image as width,height in pixels
    It works only with output parameter

DESCRIPTION
The Temporal Plot Tool is a wxGUI component that queries and plots the values of a point, defined by a coordinate pair, in one or more temporal datasets (strds, stvds, str3ds).

Supported features:

    •   temporal datasets with interval/point and absolute/relative time,

    •   show simple linear regression model line with calculated formula

        y = a + b*x (y is dependent variable, a is intercept, b is slope, x is explanatory variable)

        and

        r-squared (parameter of goodness-of-fit measure for linear regression model)

    •   pop-up annotations with values information,

    •   query and plot multiple points via the command line,

    •   zoom and pan,

    •   change labels to x and y axes,

    •   add title to the plot, and

    •   export the time series values to a CSV file (x axis data has date time string format, if you want to use for calculating simple regression model in the R environment, LibreOffice etc., you will obtain a different calculated formula

        y = a + b*x

        because these software packages use a reference date other than the UNIX Epoch time (00:00:00 UTC on 1 January 1970)).
Figure: Temporal Plot Tool To optionally add a title to the temporal plot and/or change the x and y axes labels, first type the desired text and then click Draw as showed below.
Figure: Add title and labels to a time series plot To export the time series data to a text file (date and data values), type a name for the file and click Draw again. Optionally, set the check-box to print headers, as well.
Figure: Export time series values to a text file

NOTES
g.gui.tplot requires the Python plotting library Matplotlib.

SEE ALSO
Temporal data processing, wxGUI, wxGUI components

AUTHOR
Luca Delucchi, Fondazione Edmund Mach, Italy

SOURCE CODE

Available at: wxGUI Temporal Plot Tool source code (history)

Accessed: Friday Apr 04 01:21:41 2025

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