bfast | Binary Format for Array Streaming and Transmission
kandi X-RAY | bfast Summary
kandi X-RAY | bfast Summary
BFAST stands for the Binary Format for Array Serialization and Transmission. BFAST is a data format for simple, efficient, and reliable serialization and deserialization of collections of binary data with optional names as a single block of data. It is designed so that efficient and correct readers and writers of the format can be quickly written in different languages. BFAST is intended to be a high-performance implementation that is fast enough to use as a purely in-memory low-level data format, for representing arbitrary data such as meshes, point-clouds, image data, etc. and to scale to data that must be processed out of core. One of the design goals was to assure that the format could be easily and efficiently decoded using JavaScript on most modern web-browsers with very little code. BFAST is maintained by VIMaec LLC and is licensed under the terms of the MIT License.
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QUESTION
I am working on a new version of the bfast monitor algorithm in Google Earth Engine. See the code of the original algorithm on Github.
The function bfastMonitor() takes user-defined parameters and applies some parameter checks before starting actual calculations. When the user-defined parameter settings are incompatible with the algorithm, an error should be raised.
During the parameter check, two types of if statements are made: statements that only check the parameter boundaries and raise an error at incompatible values, and statements that check and rewrite the contents of a parameter and raise an error at incompatible values. For the sake of the focus of this question, I will consider only the latter one.
Obviously, in a conventional coding paradigm, if-statements can be used to do this parameter check, however, using if-statements goes against the client-server model of GEE.
Consider the period parameter, which can only be 2,4,6,8, or 10. This parameter code used to index a list later in the code (line 459 on Github), where a period-value of 4 means that the list should be indexed at position 1, for instance.
Currently the implementation looks like this, using if-statements:
...ANSWER
Answered 2021-May-06 at 14:36There is nothing at all wrong with using a JavaScript if statement when it works. The advice you linked is about using ee.Algorithms.If which is unfortunately often inefficient — that's completely unrelated. The usual problem with a JavaScript if is when you're trying to use it on a server-side value that hasn't been computed yet.
But in your case, it looks like you want to validate a user-provided parameter. if is a perfectly fine way to do this.
I'll suggest one improvement: instead of using alert("error message");, use throw new Error:
QUESTION
I'm creating a budget page where people can add as many rows of daily expenses as they need to and whatever they enter in the amount fields will be automatically added to a total above. I can do that easily with items that are static. I created an observer that watches for that field to change and just pass that value to the totalReimbursement. I'm having a hard time getting the values from the FormGroups generated in the FormArray.
You can see how I am adding them up and
...ANSWER
Answered 2021-Apr-12 at 15:24You can use the value property on a formArray to get an array of the values of the controls. Once you got an array you can loop on it with a for, or use the reduce method :
QUESTION
I may not be using the terminology correctly here so please forgive me...
I have a case of one package 'overwriting' a function with the same name loaded by another package and thus changing the behavior (breaking) of a function.
The specific case:
...ANSWER
Answered 2019-Nov-23 at 04:47From R 3.6.0 onwards, there is a new option called "conflicts.policy" to handle this within an established framework. For small issues like this, you can use the new arguments to library(). If you aren't yet to 3.6, the easiest solution might be to explicitly namespace CausalImpact when you need it, i.e. CausalImpact::CausalImpact. That's a mouthful, so you could do causal_impact <- CausalImpact::CausalImpact and use that alias.
QUESTION
i am trying to install the package "bfast" in R studio running R 3.5.3 and it throws up dependency error Warning in install.packages :
dependency ‘quadprog’ is not available
i tried installing it using install.packages("bfast") and when i received the dependency error, i tried to install quadprog dependency as a package seperately like install.packages("quadprog") but then it showed me this error,Warning in install.packages :
package ‘quadprog’ is not available (for R version 3.5.3)
here is the console status while installing bfast package.
ANSWER
Answered 2019-May-07 at 16:17There is a new version of Quadprog: 1.5-7 that can install on R above 3.1:https://cran.r-project.org/web/packages/quadprog/index.html That solved it for me.
QUESTION
I want to run the bfastts function (https://www.rdocumentation.org/packages/bfast/versions/1.5.7/topics/bfastts) on a series of dates formatted as dd-mm-yyyy and a series of values to convert them into a time series. For this function the dates need to be of "POSIXlt" type. However, when running the code
...ANSWER
Answered 2019-Apr-23 at 14:52The problem is that dates is a list, but you actually want to access the first entry (V1) of it. Further you have to specify that the dates you are providing are in the format dd-mm-yyyy. This you can do with format = "%d-%m-%Y". Thus the following works:
QUESTION
In a Python shell, and using rpy2 when I issue the following command
...ANSWER
Answered 2019-Apr-19 at 14:29QUESTION
I'm trying to add the if statements to the $totalReimb as well as the $totalMileReimb but can't seem to be able to get them to add only the $totalMileReimb is added
The variables
...ANSWER
Answered 2018-Oct-20 at 20:46I think your error is this, $totalReimb + 12.50 should be one of the following:
$totalReimb = $totalReimb + 12.50$totalReimb += 12.50.
QUESTION
I want to calculate the total price by multiply the number of days and price. Another 10 will be added if the they choose yes for breakfast in the selected box. But when I choose 'yes' on breakfast. it does not calculate the breakfast. I have already done the calculation using JavaScript, but it looks like I'm doing it wrong.
Does anyone knows how can I fix this? Thank you so much for your help.
HTML:
...ANSWER
Answered 2018-Oct-18 at 15:36you have to get the value of the select element, not the value of the option.
Something like this:
QUESTION
I have a situation, when the user clicks a button in page A the button will disappear and go to page B. and when the user goes back to page A, the button will still disappear. Is it possible to do this? Is this sounds logical?
...ANSWER
Answered 2018-Sep-16 at 03:21When the button is clicked, you can set a value in sessionStorage. Also, on page load, check to see whether that value exists in sessionStorage, and if it does, hide the button. For example:
QUESTION
I created web application where users will record their google co-ordinates. For this purpose in front-end javascript I used google maps API.
Ideally the page looks like below.
I have domain and VPS server from godaddy. I also SSL certificate installed in the server.
But the issue is frequently the MAPS are not working and when the page load it gets hang. See below.
Then later i regenerate the key and restart the server, this is taking lot of time to resolve on every occurance.
Is there any way that I solve this issue permanently? Have you come across such issues?
Google maps API as below:
...ANSWER
Answered 2018-Sep-12 at 11:40If your ajax call doesn't return successfully the map will not be created as the map is created only if ajax call returns success. You could move the map and marker creation code before the ajax call as follows :
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