Questions tagged [chart]

A chart is a graphical display of data.

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17 views

Draw multiple charts in one page (or image) in GEE

Is it possible to draw multiple charts in one page/image in Google Earth Engine? Something similar to the .setOnLoadCallback() in Google Charts.
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42 views

How to plot charts with fixed values from different regions in GEE

I'm extracting spectral signatures from Sentinel 2 imagery. I need to plot the chart for a certain target area showing the signature of the area and that one of a different reference area. Then I need ...
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1answer
21 views

Setting column order of chart in Google Earth Engine

The information of month, year and area are stored in a FeatureCollection, and were plotted by ui.Chart.feature.groups. In the chart, however, it is noted that the order of month columns is wrong. How ...
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10 views

Getting data from Navionics or Genesis Maps(C-map)

Is there a way to import either vectors or at least map tiles I can trace from Navionics or C-MAP Genesis. I have QGIS and ArcGIS Pro, as well as Global Mapper available to me. Genesis does offer ...
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1answer
26 views

Error generating chart: No features contain non-null values of "system:time_start". Landsat 8 Surface Temperature Time-Series Chart (Earth Engine)

I want to create an average surface temperature time series chart (+ per year). However I am encountering this error Error generating chart: No features contain non-null values of "system:...
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1answer
72 views

Creating formatted chart for Confusion Matrix using Google Earth Engine

I was curious how to create a formatted Confusion Matrix: (https://developers.google.com/earth-engine/apidocs/ee-confusionmatrix) I've completed my Supervised Classification, and I've created a ...
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31 views

Different plot for individual in Google Earth Engine without writing plot lines multiple times

For example, I have three polygons over the NDVI layer so I want three different charts, and if 100 then 100. I don't want one chart with different lines. I want to avoid writing the same plot chart ...
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1answer
52 views

Plot time series for NDVI on Landsat8

I want to select an region on map and get the time series for NDVI based on Landsat 8 imagery. If possible, it whould be better if I can get the image row and path through matching the Landsat tiles ...
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1answer
32 views

How to get Hansen forest loss chart to only show values between 2015 and 2020

I am trying to use ui.Chart.array.values in GEE to make a yearly forest loss chart with the Hansen dataset. I am only interested in the years between 2015 and 2020 and can't figure out how to isolate ...
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1answer
23 views

Data is not appearing in chart in GEE

I have not been able to figure out why the dataset I load does not appear in the chart I created in Google Earth Engine. I am new to GEE and JavaScript in general, so I may be missing something ...
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2answers
69 views

When reading a BSB/KAP chart file, I am getting incorrect run lengths. Many runs lengths are way too long

My java code for reading the run length portion of the stream is shown below. The run lengths being read in don't make sense. byte b = (byte) br.read(); //read a byte from the stream ...
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2answers
42 views

Converting hourly data to daily data and chart it in GEE

I'm using the following code to convert hourly data into daily data records. In the first case (Surface Solar Radiation) it works well but in the second case (Mean 2m air temperature) occurs an error ...
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18 views

Chart with mean and standard deviation bands in Google Earth Engine

I am trying to make a NDVI time-series chart with Google Earth Engine displaying standard deviation bands: In input I have 2 points and I created a buffer to enlarge the area to study better the NDVI ...
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29 views

EBBI Values too small

I'm trying to calculate EBBI at Google Earth Engine for images from Landsat 5, but the values that I get are too small. I've already tried change the study area and also making an image. But tha ...
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1answer
32 views

Making Chart label and ranging vertical axis in Google Earth Engine

Does anyone know how to make labels place in the same position, though it is on or in the graphic? And how to change the range of vertical axis. In the following picture, we can see the range of ...
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2answers
105 views

Creating a spectral profile in ArcGIS Pro to analyse Landsat 8 image results in software crashing

When trying to create a spectral profile chart in ArcGIS Pro on a Landsat 8 image, the software crashes and I have to start it again. Machine specification meets all system requirements for ArcGIS Pro....
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1answer
53 views

Increasing decimal in table chart Google Earth Engine

I have code that generates NDVI times series chart. The values are with 3 decimal places. I want to increase the decimal places to 4 or 5. Is there a way of doing that? My code: // Load raster data (...
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19 views

Why the bar chart can not appear in the Console of GEE?

I am trying to create a chart of classified landcover in GEE, but the chart does not appear in the Console. Could someone please have a look at my scripts and point out what's wrong? var ...
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35 views

Getting chart Google Earth Engine with a data from class group

i want to creat a chart from a single class group, this the code : var areaImage_1990 = ee.Image.pixelArea().divide(1e6).addBands( classified_1990) var areas_1990 = areaImage_1990....
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1answer
110 views

Extracting pixel values in sample polygons in Google Earth Engine

I am trying to generate histogram of pixel values for my sample polygons. I used the code suggested on Histogram Matching in Google Earth Engine. Its working but I am not able to control the bin size ...
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1answer
97 views

Air temperature chart using ERA5 dataset in Google Earth Engine

I used this code to map 2-meter temperature over Italy from 2000-2020 using ERA5 dataset in GEE. https://code.earthengine.google.com/6dc6f44e827b9e033d2c2227aa2363b1 I used Mean reducer to show the ...
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1answer
31 views

Converting numbered day of year to Month on the X axis for NDVI time series analysis for a range of years [closed]

I am working on an NDVI time-series series analysis to detect incidence pests. Timeseries generated by landcover is okay as I am using ui.Chart.image.series function. The problem I have is with the ...
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1answer
165 views

Creating chart with day-of-year time series for multiple regions using Google Earth Engine

I'm trying to create a chart of NDVI values that shows the average values for each day of the year for the last 5 years. I think exactly what I need is this: https://developers.google.com/earth-engine/...
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1answer
133 views

Sort column by values in ui.Chart.feature.byProperty in Google Earth Engine

I am creating a bar chart of band importance of a random forest classifier in GEE. The default bar order seems to be by name. How can I sort the columns in descending order depending on each column ...
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1answer
222 views

Controlling class label and color from classified image in GEE column chart?

I am trying to create a column chart from a land use/land cover (lulc) classified image (more specifically, the amount of area per lulc class). I was able to create the chart but couldn't set the ...
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1answer
39 views

GEE, scatter plot. ERROR: array length mismatch

In Google Earth Engine i am trying to find scatter between elevation and occurrence but i am getting common number of array vectors ''' var data=ee.Image("JRC/GSW1_3/GlobalSurfaceWater")....
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1answer
144 views

Change Detection Chart from lists in Google Earth Engine

I want to create a chart from classes area (square kilometers) that I calculated from the land cover supervised classification process. These classes area are in form of lists (these are printed in ...
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0answers
63 views

Chart multiple regions on one histogram

I'm having trouble trying to chart multiple regions onto one histogram. var urban1 = urban.first().geometry(); var pine_forest1 = pine_forest.first().geometry(); var regions = ee.FeatureCollection([ ...
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1answer
187 views

TerraClimate: Error generating chart: Data column(s) for axis #0 cannot be of type string

I am using "TerraClimate: Monthly Climate and Climatic Water Balance for Global Terrestrial Surfaces, University of Idaho" dataset... When I try my code, I have this error message Error ...
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1answer
130 views

Stacked bar chart in QGIS

I have seen several videos of being able to do stacked bars as diagrams to represent atrributes in QGIS (e.g. https://www.youtube.com/watch?v=Ras5y6TpECk&ab_channel=WiseGIS) However I do not see ...
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0answers
34 views

Hiding missing values on bar charts in QGIS

I'm trying to hide the bars when there are no values available on my bar charts. This, in order to differentiate missing values from values that are existing but are very close to zero or equal to ...
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1answer
43 views

What does the "scale" setting when plotting a NDVI or EVI time series?

I adapted the script from the guide for ui.Chart.image.series to my region of interest and time period: // Import the example feature collection and subset the forest feature. var bm = ee....
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1answer
54 views

Calculating total area of pie charts in ArcMap

Background: I am scaling the size of pie charts by a field which indicates a percentage. I am doing this for two datasets displayed on two maps and would like the resulting areas of the scaled pies to ...
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0answers
14 views

Display attribute values over time in a graph as a widget or pop up in ArcGIS Online

I'm trying to find a way to display weekly settlement monitoring data from a set of points as a line graph in ArcGIS Online. The charts functions that I've played around with require a statistical ...
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2answers
219 views

Set axis in Google Earth Engine Chart

I'd like to compare LAI (Leaf Area Index) data from the same region over different times using ui.Chart.image.series in Google Earth Engine. I'm trying to set the axis to the same range, in order to ...
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1answer
71 views

FeatureCollection feature.byFeature histogram or column chart bucket size

I am working with a featureCollection of river data which is segmented by river reaches (there are hundreds within a few km). This collection includes data of reach length and reach discharge. I am ...
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0answers
20 views

Dimension Difference preventing plot of series

I have performed linear regression between the 'ro','pr' series (runoff,precipitation) and printed the chart. I want to print the linear fit on top of it and get the R**2 value, but dimensionality ...
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86 views

Calculating 3x3 pixel Neighborhood in GEE

I'm trying to calculate 3x3 pixel kernel for each image on my NDVI image collection. My goal is to do in GEE focal statistics like in Arcgis. My code is below and it generates an NDVI image collection ...
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77 views

Creating summarized view of data in ArcGIS Online to use in dashboard bar chart

I have a table hosted in ArcGIS Online which basically records the number of new COVID-19 cases, recovered cases and deaths every day. I need to display these three series in a single bar chart which ...
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1answer
146 views

Forcing y-axis range in ui.Chart.image.series()

I am harmonizing Landsat 8 and Sentinel-2 datasets for agricultural mapping purposes. When plotting the results using ui.Chart.image.series function, one graph shows the y-axis starting not at 0. For ...
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0answers
57 views

TimeSeries and Export to CSV Google Earth Explorer

I am fairly new to coding. I have the below code to generate monthly NDVI data for each of the 15 regions. I can do them all individually, but it does take some time. Are there any method of ...
2
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1answer
23 views

Grouping a dataframe whilst making a pie chart

I have a data layer which consists of an attribute table of ~30 columns and ~6000 rows. This table contains information about buildings that are located close to parks in Amsterdam. I want to create a ...
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0answers
75 views

Removing repeats in Chart symbology in ArcGIS Pro

I want use Chart Symbology for my dataset but there are repeats in the chart symbology when I export the map. Pics show what I want and see in Layout view VS the repeat pie charts after I export. How ...
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0answers
37 views

Generating Table or chart of point values per polygon from time series - Google Earth Engine

I'm trying to generate a table with my GNDVI points value from a time series. I have a feature collection of my polygons, another feature collection of my random points in the polygons. I have a image ...
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1answer
59 views

Daily rainfall chart in a polygon between dates in GEE

I would like to make a chart of daily rainfall in a polygon of a shape file collection. var inidate = ee.Date.fromYMD(2020,5,1) var enddate = ee.Date.fromYMD(2020,11,10) // Difference between start ...
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1answer
526 views

SAVI time-series chart on Google Earth Engine

I've been trying to generate time-series indexes charts and print it on the panel, but the SAVI index chart ends up looking just the same as the NDVI chart, besides, the range is wrong (0 - 1.5). Here ...
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0answers
47 views

Is it possibleto bar graph rainfall data in parallel with with a temporal animation

I have an animation of red squirrel sightings in Clocaenog Forest over time (one year). I would like to display a bar graph of rainfall and temperature for each day as the animation displays. I know ...
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0answers
45 views

Printing a table fro time series on google earth engine

I'm quite new to GEE. I have code that prints a time series of my image collection. I know that it is possible to download the data to a csv file but is there a way to view my time series data in a ...
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1answer
654 views

How to Properly load ENC charts on QGIS 3

I am trying to load ENC charts on QGIS but they are very odd when loaded. I read that one has to use ogr2ogr that converts these to shapefiles but that didn't work for me too. It shows up totally ...
2
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1answer
359 views

Error generating chart: String: Unable to convert object to string

When I try to generate chart by region, I get following error: Error generating chart: String: Unable to convert object to string. How can I revise my code to remove this error? var image = ee.Image('...

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