g.gui.tplot.1grass - Man Page
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
The size for output image
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: Tuesday Mar 19 11:03:30 2024
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