pretty basic question here but I'm new to google earth engine. I have a feature collection with 42 columns (a shapefile covering one state in the US) and I want to make a new one with only a few of those columns but still covering the entire state (keeping all rows in the attribute table). I have tried using .select and several other functions but have not been able to figure this out yet. Any insights are appreciated!
example code here: shp1 is the name of the feature collection (polygon shapefile). shp2 is the new feature collection I'm trying to make, and test1 and test2 are the columns I want to bring from shp1 to shp2 (along with the geometry).
var shp2 = shp1.select(['test1', 'test2']);
At this point, the result is another feature collection without any columns.
At this point, the result is another feature collection without any columns.
The columns: information that is displayed by print()ing a collection in Earth Engine is an approximate value. If a name is present in it, then every feature in the collection has that property. If a name is absent, there may or may not be such a property on the features.
The only way to know for certain if properties are present is to inspect the individual features.
I am building a database for maintenance performed on lighting fixtures, each with their own unique serial number. I already have an excel document with all this data, but want to create a better system for managing the data.
The idea is that every time I service a unit, I have a new job #, and fill out a checklist and enter notes for that job. I have created a Job # table, with columns for serial #, date received, date completed, notes etc. I have also created a job form, which includes all the relevant info for that job#. The question I have now is how to create relatively efficient checklists that modify the background color of a text field.
For the first part of this, I need to have a drop down list with different model lights to choose from(each light has different feature sets to test), which, depending on which model I select, will display/generate a checklist, with about 25 items, that is unique to that model.
Then, when all the check boxes are checked for that specific checklist, I need the background color of a text field("Unit Good?") to change from red to green. These check lists need to be specific to the job #/record #, and I'm curious if there's a relatively easy/efficient way to do this.
At present I have about 150 jobs, and it will only increase over time.
My preference is to avoid VBA if possible, but if necessary, some pointers, or recommended tutorials would be highly useful.
I've built the underlying table and form, but haven't yet been able to figure out how to do the checklists.
Any help here would be extremely appreciated. I am happy to provide any additional information/documents if necessary.
Yes, this is possible and it can be done without VBA (although macros are required).
First, you need to create a couple more tables. I'm making the assumption that you only work on one light model per job (multiple models is possible but more complex). You will need to create three tables (two if you already have a table for your light models).
Light_Models will contain information about the light models you service, including their unique serial number.
Model_Checklist_Defaults will contain default checklist values for each light model
Job_Checklist will contain checklist values for a specific job based on the light model you serviced (this is where multiple light models in a job would add complexity). When you create a job for a specific light model, you need to copy the appropriate values from Model_Checklist_Defaults into Job_Checklist (this can be done by creating a query and calling it from a macro, I won't cover this here).
These tables need to be related in the following way Relationships image. I only included the bare minimum columns, you could add more as you need.
You need to create a form to present your checklist, and optionally, other job details. This form assumes that you have already created a job and selected a light model, but you could modify the form to create the job and checklist in one step.
The example form (Form image) has a jobNumber textbox that identifies the current job, a coloredField whose background color changes based on the checklist, and a subform that presents data in the Job_Checklist table filtered by the jobNumber textbox (this filtering is with linked fields in the subform Property image).
The final piece is configuring the coloredField background color and setting a macro on the form, jobNumber and subform to update the coloredField when checkboxes are clicked/unclicked.
This macro need to be set in several places (Macro image):
Form OnLoad event: this ensures that the coloredField updates based on the checklist when the form opens (in case you close and reopen, for example)
jobNumber AfterUpdate event: this field updates the checklist subform when its value changes, so you have to recheck the checklist values each time
subform OnExit event: this event is called after you have clicked into the subform (checking a box, for example) and then clicked on another field in the main form. This event catches the actual checkbox changes.
Am creating a bar chart in spotfire and would like to plot a line on top of the chart that acts as a trend line but need to manually enter the data points. Is there a way to do so? Have not found any documentation on such thing. Would really appreciate some help with this!! Thanks!
Since the points will be static, I would put the points in a column in excel and embed the data into your analysis. Then you can change your chart type to combination (line and bar) and plot your newly added data as a line.
You will need a column in both tables which will be used as the relation and set up the relation via Edit > Data Table Properties > Relations.
Relations are like keys to link two separate data sources. In database terms, it's a KEY. For example, take a look at THIS MODEL. These tables are related based off the Activity Code.
Here are some other helpful references.
https://docs.tibco.com/pub/spotfire/7.0.1/doc/html/md/md_working_with_data_tables.htm
https://en.wikipedia.org/wiki/Relational_model
Can anyone tell me how to use the Orange correspondence analysis widget?
I have a table of 11 columns of data with a first column of row names. I have tried to select the data using select attributes widget and connecting to the correspondence analysis widget. But, I did not get any result. Do I have to connect to another widget before the correspondence analysis widget?
Okay, I don't know what code I'm using. I don't know how to access code I was just using the visual interface, which I thought should do the job.
The input data for the correspondence analysis need to have discrete variables.
If you have continuous variables consider PCA instead.
For a simple example use of CA, load the smokers_ct.tab dataset and use it in CA widget.
I tried posting this question earlier but was unsuccessful so I'm trying again
I imported a shape (set of points) file into postgres and have a table (hist_info) with additional data also in postgres. I tried creating a VIEW with data that I need from each files but for a reason I can't figure out as to why my GIS layer (created in geoserver) is blank. A SELECT * FROM new_view shows there is data in the table created by the VIEW....
So my questions are
1. What data must I include in the VIEW in order for the newly created VIEW will display as points and show the added data when a point is clicked on?
What is the best way to combine the two files so that I can display the data from the hist_info table when someone click on one of the points on the map displayed in their browse?
Thanks for the help!!
Regards
Chris
You need to insert a record in the geometry_columns table or GeoServer won't read your view's geometry. Have a look at this:
http://docs.geoserver.org/stable/en/user/data/postgis.html#publishing-a-postgis-view