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Questions tagged [chart]

A chart is a graphical display of data.

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LST in GEE: Error generating chart: No features contain non-null values of "system:time_start"

The error: Error generating chart: No features contain non-null values of "system:time_start" appears when I try to generate the LST graph in GEE for the selected period. I tried to return ...
Kauan Kubaski's user avatar
0 votes
0 answers
29 views

Evaluation of NO2 extraction code

I have two blocks of NO2 extraction code but they give different results. I can't figure out why and I'm not sure which one is correct. How do I determine this? First code: // Import the example ...
CS_RT's user avatar
  • 15
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1 answer
45 views

Error "No features contain non-null values of system:time_start" when charting time series in Google Earth Engine

I want to create a chart showing the yearly average Chlorophyll a over a given time span. However I have been getting the following error when trying to create a time series. After looking at this ...
Ben Watson's user avatar
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0 answers
11 views

Adding an extra series to chart Google Earth Engine

I need to perform the same analysis for different geometry points and plot it. Actually I have the plot for each point and when I click on the map creates a chart for the point where I clicked it but ...
Paula Torres's user avatar
0 votes
1 answer
57 views

Unable to compute graph in Google Earth Engine when trying to compute mODIS NDVI Time series analysis of a small region in Crete, Greece

I want to make a simple time series analysis of the past 8 years using MODIS data but I'm unable to compute the graph as I get the following message: Error generating chart: Collection.first: ...
Eppez's user avatar
  • 1
1 vote
1 answer
56 views

Problem in creating diagrams for every single point in qGIS

I have a shapefile layer with locations of dead birds, their total number is about 180, the locations where they were found are about 70. The shapefile contains the Latin name of each of the birds, as ...
Nikolay Yordanov's user avatar
0 votes
1 answer
59 views

ui.Chart.image.series() function does not work when app published

I have created an app using Google Earth Engine which makes a Regional Time Series Chart of a specified geometry. This is the code: function generateData() { regionalTimeSeries.clear(); var chart =...
Madhav A Nair's user avatar
6 votes
1 answer
83 views

How to prevent hidden objects when move extend layer

Related to the question Creating bar chart from point layer using QGIS Geometry Generator, I am using with success the expressions proposed by user Taras in Solution 2 and for user Babel. The two ...
Ingrid Ingravida's user avatar
1 vote
1 answer
132 views

Increasing size of chart inside pop-up window - Leaflet - d3.js?

I have created a chart inside a pop-up window for a marker on leaflet javascript. I am new to html, css, and javascript. I have also used d3js for the plot. The problem is that I cannot increase the ...
Ilias Machairas's user avatar
7 votes
3 answers
657 views

Creating bar chart from point layer using QGIS Geometry Generator

From a layer with point geometry, I store the following fields: "CATEG" which can be A or B "ORDER" which is an autonumeric field sequence without repetitions "VALUE" ...
Ingrid Ingravida's user avatar
0 votes
0 answers
20 views

QGIS pie chart with only one attribute displaying distinct values

In QGIS I have a map with several counties areas. Each county area has a road network split into segments. I have an attribute grading each segement quality with a note raging from 1 to 5. For each ...
dot314's user avatar
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0 answers
89 views

Creating interactive chart in Jupyter Notebook using Geemap

This code applied the custom date to the x-axis. But I do not want this. I want to show the date on which the Image is taken by using "system:index" property of the Image. Also, This code ...
Muhammad Waqas's user avatar
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0 answers
24 views

Esri Dashboard Serial Chart - Date axis only shows full labels

I have a table of dates and data in Portal. The dates are in date format and I configured the date to be the mm/dd/yyyy format in Pro. I want to make a serial chart but the dates are not showing as I ...
Lostingis's user avatar
0 votes
1 answer
31 views

I am generating a graph to show the temperature change in Pfywald in the past 30 years

I am using my code in the last project I have done and trying to change the variable to generate a time series chart of temperature in Pfywald in the past 30 years.Here is my code and my error is &...
GLory's user avatar
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0 answers
38 views

How do I get a line chart to display properly in GEE?

I'm trying to graph the year against the day, which I store in 2 lists. However, my graph shows up empty when I run my code, but when I manually put in the values that are output for ChartData2, I do ...
Bobby Liu's user avatar
0 votes
0 answers
30 views

Colouring of a pie chart

How can I automatically insert different colors for different attributes in creating pie chart in QGIS. I have multiple attributes and coloring them differently takes alot of time. Is there way that I ...
Viliami's user avatar
1 vote
1 answer
104 views

Principal Component Analysis (PCA) error found for getting results as a Chart (ui.chart) in GEE

I am trying hard to get principal component analysis results as 'chart/csv.' format by applying ui.chart code but it shows the error "Error generating chart: No features contain non-null values ...
Hanif Bhuian's user avatar
0 votes
1 answer
66 views

EEException: Image.bandNames: Parameter 'image' is required

I am trying to compute the NDVI index using the MODIS Landset in Python and to visualize it in a time series chart, but I am facing an error and I cannot understand where is the problem. This is my ...
gaia's user avatar
  • 1
1 vote
1 answer
392 views

Box plots in Google Earth Engine for NDVI

I am trying to create an NDVI chart with bix plots in Google Earth Engine. I drew an ordinary chart for NDVI and SAVI using LT5 images for 1992-2000. But when it comes to drawing charts with box ...
Bokhir Alikhanov's user avatar
0 votes
1 answer
91 views

Sanity check for a declination chart on a QGIS map

I'm making a declination chart (True North -> Grid North -> Magnetic North) for a map I plan on using, and I need some sanity check from the community: The convergence from True to Grid north is ...
SubXi's user avatar
  • 11
1 vote
0 answers
44 views

Grouping points within counties and symbolizing their data as pie charts in QGIS

I need to combine/categorize points within different polygons while retaining some of their values. I've made up a scenario to try and simplify my problem. The layers I have to work with are a point ...
Inga's user avatar
  • 19
0 votes
0 answers
75 views

GEE does not recognize strings when labeling a chart in ui.Chart.image.regions

I'm trying to create a chart en GEE, with labels for each series. GEE does not recognize strings when labeling a chart in ui.Chart.image.regions The error is Error generating chart: Data column(s) for ...
Fabio Daniel Trinco's user avatar
0 votes
1 answer
135 views

How can I change the Data format in xProperties of GEE Chart?

My goal is export CSV table with 2 columns: system:time_start in format YYYYMMddHHmmss and LST_median. For this I try to create Chart first but xProperty wants just a string like system:time_start and ...
Anastasiia's user avatar
1 vote
1 answer
108 views

Create a time series chart showing the winter, spring, summer, and fall mean land surface temperatures (LST) on the same graph

I know how to create a time series for each season, but I how can I plot them on the same chart? var roi = ee.Geometry.Point([-122.08412, 37.42189]); Map.centerObject(roi, 6); print('Coordinates for ...
Lin's user avatar
  • 11
0 votes
1 answer
68 views

How can I put this data into a table?

Here is a chart of monthly mean rainfall vs month, and I would like to now get a data table. I would also like to export the table to the drive. I am not sure how to generate a table, basically I just ...
Mas's user avatar
  • 33
1 vote
0 answers
18 views

Merge polygons that overlap into a multipart polygon while maintaining the original geometries/look

Overall, I want to display an index map that shows nautical charts and their corresponding inset charts. The majority of the time these insets lay directly on top of the "parent" chart in a ...
Sjolster31's user avatar
0 votes
1 answer
200 views

Combining several collection into line chart in Google Earth Engine

I made several collection and I want to make a line chart using these five period. var p1 = S2.filterDate('2020-04-14','2020-04-27').mean(); Map.addLayer(p1.clip(SBY), band_viz, 'PERIODE 1'); var p2 =...
Honey's user avatar
  • 1
2 votes
0 answers
354 views

GeoServer: Creating pie charts using SLD

I have created a layer in QGIS using pie charts as below: I wanted to export this style to SLD and import it into GeoServer and then apply it to a WMS. The export from QGIS to SLD does not work ...
GisUser's user avatar
  • 647
0 votes
1 answer
124 views

UI Charts - Google Earth Engine Python API

I am using GEE Python API. I want to create a time series chart but the documentation says: Caution: the ui.Chart widget is available for the JavaScript Code Editor API only. How do we create in ...
th145's user avatar
  • 25
0 votes
2 answers
915 views

How to split a feature collection in several equal parts in GEE

I have a feature collection (fc) consisting of 44 polygons. I need to create a time-series chart of NDVI values for each of them. I would like to analyse these polygons in groups of 4 - 5. Grouping ...
Barbara Perez de Araújo's user avatar
0 votes
1 answer
242 views

How to chart only a subset of features in a feature collection in GEE

I have a feature collection consisting of 44 polygons. I need to chart a time-series of NDVI changes in each of them. I want to chart the polygons in groups of 4 and select them myself, meaning there ...
Barbara Perez de Araújo's user avatar
1 vote
2 answers
126 views

Define ".setSeriesNames" as a specific column from my Feature Collection when charting in GEE

I have an asset imported from a shapefile in GEE. It is a feature collection with which I wish to chart a time series. The lines from each feature are labelled as system:index. See labelling of ...
Barbara Perez de Araújo's user avatar
0 votes
1 answer
91 views

Adding Chart Guide using ArcPy in ArcGIS Pro

I wish to add a guide to the Bar chart in ArcGIS Pro using ArcPy but I couldn't find anything in documentation. How can I do this?
Raja Aravindh's user avatar
1 vote
1 answer
132 views

Assigning labels to values in chart using Google Earth Engine JavaScript API

with this code I created a land use time series: var imgCol = ee.ImageCollection('users/danielepiccolo/consumo_suolo/CS_ARPAV') .select('b1'); var region = ee.FeatureCollection('users/...
Daniele Piccolo's user avatar
-1 votes
1 answer
96 views

Timeseries chart of land classification [closed]

reusing some code i created this project to display the histogram of soil classes: https://code.earthengine.google.com/6e9a7f17f4ae0260f796727c4d4f3e1a The image has only one band and pixel values ​​...
Daniele Piccolo's user avatar
1 vote
0 answers
51 views

PyQGIS FlowChart - Python

I'm trying to create an ArcGis Flowchart. I've read the Developers CookBook and I couldn't grasp almost anything. What I'm trying to do is using some data that I already have, to create n rectange, n ...
Diogo Barros's user avatar
0 votes
1 answer
181 views

Wrong format of Year in Chart

I am calculating the Annual mean NDVI from S2 data and trying to plot it. However, in the chart, the format of all years is not correctly presented. The 'year' values are presented as double. How I ...
Arjumand's user avatar
1 vote
1 answer
120 views

Automatic setting of bar colours in a stacked bar chart using DataPlotly

I'm building a bar chart from attribute table using DataPlotly. I have set the colour scale for bars setting this expression: case when "field" = 'A' then '#06e79e' when "field" = '...
HyPhens's user avatar
  • 520
0 votes
1 answer
185 views

Print chart error: "User memory limit exceed"

I tried to plot the SAR backscattering vs the Crop Water Stress Index using the following code: var CWSI= ndvi.add(ndwi).rename('CWSI') print('CWSI',CWSI) Map.addLayer(CWSI.clip(Hoshiarpur),{},"...
Reflex_180's user avatar
2 votes
1 answer
300 views

Google Earth Engine: time series chart of NDVI median value for different land cover classes (ESA/WORLDCOVER/200V)

I'm trying to extract a historical series of ndvi by land cover class (in particular Trees, Shrubland and Grassland), using the ESA collection (ESA/WORLDCOVER/200V) and clipping on my study area (...
Martina Perez's user avatar
0 votes
1 answer
93 views

Chart of 14-day cumulative rainfall

I need to chart/download a list of 14-day summed precipitation values, and I was not able to get this script to run. I seem to be running into an error related to the 'system:time_start' property. I'm ...
brbell01's user avatar
1 vote
0 answers
190 views

Is there any way to create a dynamic marker with a self-populating pie chart (within the marker) in QGIS?

I have to plot security incidents on a map, and while I have been having great success on QGIS with the general mapping, as well as using clusters to indicate more than one incident on the same ...
Tertius's user avatar
  • 11
0 votes
1 answer
153 views

Scale y axis on elevation profile chart

I am generating elevation profile graphs from hiking trails (GeoJSON). Use as maximum and minimum values of the Y axis the value of the maximum altitude and the minimum altitude of the route. The ...
Ivo Carrion's user avatar
2 votes
1 answer
882 views

QGIS : How to make pie charts that depict quantity on certain coordinates/site?

Does anyone know how to create a map such as this one in QGIS? In short, if we have a table with list of sites with coordinates and and one column with numbers dedicated to μg /g according to which ...
Zea's user avatar
  • 21
0 votes
0 answers
217 views

Create a chart with JavaScript

I would like to create a chart with chart JS. I would like to load a JSON from my AGE rest and after that, create a cumulative chart with the length of my polylines. My code blocks when I try to load ...
kael112's user avatar
0 votes
1 answer
402 views

Error in generating a chart: No images in the collection intersect the specified regions

I am getting an error saying: no images in the collection intersect the specified regions thus my time-series chart cannot be generated. What might be the reason for this? The link to my code https:/...
Simba's user avatar
  • 69
0 votes
0 answers
41 views

ArcMap only plots some points of shapefile

I am using ArcMap 10.7. I have a point shapefile with nine weather stations in Patagonia. It's available here. I want to plot all four variables as a bar chart for each station, so that you can see ...
Florian Mlehliv's user avatar
0 votes
1 answer
146 views

Creating BoxPlot in R

I want to create boxplot to show Forest Percent by localunit (GaPa_NaPa). The attribute data is as shown below:- The data frame is as shown below:- structure(list(GaPa_NaPa = c("Gaidahawa", ...
Walker's user avatar
  • 301
1 vote
1 answer
886 views

Land Surface Temperature in GEE: ,Creating a Chart with correct values

I have this code below for creating an LST for my region. Then, I create a chart with the mean values. But code gives the LST values in the chart in negative from the range -250 to -293. Now I do not ...
Muhammad Waqas's user avatar
2 votes
1 answer
91 views

Setting direction to clockwise using PyQGIS

I am looking for a way to change the direction of the pie charts of a layer from counter-clockwise to clockwise in QGIS 3. I looked in the docs but I don´t seem to find a way to do this. Does anybody ...
Christian 's user avatar

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