carlson | source rocket flight computer : logs IMU data | Continous Integration library
kandi X-RAY | carlson Summary
kandi X-RAY | carlson Summary
Carlson is a Raspberry Pi Zero based rocket flight computer with an MPU9255 IMU, BMP280 barometer, 1080p video camera, WiFi chip, and 915 MHz telemetry radio. It runs on a two-cell lithium polymer battery. Carlson will eventually control automatic apogee detection in flight and parachute deployment. :bangbang: We had the opportunity to give a brief talk at the NASA Rhode Island Space Grant Symposium in Providence, RI about our work on Carlson and motor testing! Check it out on Google Slides.
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- Listen to servos
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carlson Key Features
carlson Examples and Code Snippets
Community Discussions
Trending Discussions on carlson
QUESTION
Dear Stackoverflow community, I am writing this question because I have a problem when plotting an analysis I have performed on a dataset in archaeology. It turns out that I have performed a discriminant analysis by canonical functions, following an example from archaeology professor David L. Carlson, and at the moment of viewing the biplot graph of his data set the graph is shown without problems, where the number of cases associated to the centroids is observed. What happens is that when I plot my data set, the biplot graph I get does not show the number of cases associated with the centroids, I have tried several times but I can not, and I do not know if I have a problem with my data set.
The syntax of the Roman Pottery developed for professor David L. Carlson are shown below:
...ANSWER
Answered 2022-Mar-16 at 02:00The problem is that Congo_DMA_2$Cluster
must be a factor, not a character vector. Older versions of R made this conversion automatically when creating a data frame, but the current versions do not. Just add the following line to your code after creating Congo_DMA_2
:
QUESTION
I am trying to add data from the ajax response to the html table. I am getting data from the backend data but its not getting added to the table.
I tried various methods but none of them giving me a solution. I have pasted Javascript and HTML table code below. Please help me with this and let me know if you require any more information on this
...ANSWER
Answered 2022-Feb-28 at 08:27Mistake seems to be on the below line.
You're running a for loop twice. Once is enough which will expose the object.
You were accessing property like
userData[j].cast
, but userData is already an object so access it likeuserData.cast
.
QUESTION
I want to create a simple barplot of my data frame:
...ANSWER
Answered 2022-Feb-10 at 17:52The problem of switching labels comes from geom_text()
not knowing how the information should be split for the purposes of dodging. The solution is to supply a group=
aesthetic to geom_text()
that matches the fill=
aesthetic specified for geom_col()
.
In the case of geom_col()
, you specify aes(fill=feature)
. The height of the different columns is therefore grouped automatically by corr$feature
. You can supply a group=
aesthetic as well, but it's unnecessary and the dodging will happen as you expect.
In the case of geom_text()
, there is no obvious way to group the data. When you do not specify a group=
aesthetic, ggplot2
chooses one of the columns (in this case, the first column number) for grouping. For dodging to work here, you need to specify how the label information is grouped. If you don't have a specific legend-associated aesthetic to choose here, you can use the group=
aesthetic to specify group=feature
. This let's ggplot2
know that the text labels should be sorted and dodged by grouping according to this column in the data:
QUESTION
I'd like to return multiple values from the same record, with different columns of the same type appended under one another. I could do multiple joins, but that seems very inefficient because of the multiple table scans.
...ANSWER
Answered 2021-Dec-31 at 01:56You need to unpivot each row. This means that you only scan the table once, then break it out into separate rows. You could use UNPIVOT
, but CROSS APPLY (VALUES
is far more flexible.
QUESTION
I have a scenario where I know what I need to do but do not know how to implement it in Swift...
I have 2 tables in CoreData and I fetch their values as below
What I need - all friends that are in a particular user friends array
//-----Full Code Manual CachedUser Class
...ANSWER
Answered 2021-Dec-24 at 16:03You don't need to use filter
on a CoreData FetchRequest ever.
It is best to do the filtering by NSPredicate
https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/CoreData/index.html
But in this case all the user's friends are in a variable. If you have the individual user
all you need to do is something like this...
QUESTION
I need to learn how to make a script that gets all users that have access to a shared mailbox in our business.
For example:
shared mailbox: shared_admin@business.com
I would like to export as a .csv like this:
...ANSWER
Answered 2021-Nov-05 at 16:15First install the Exchange Online PowerShell module v2:
QUESTION
this is my first time asking a question here so forgive me if this is not properly formatted.
can somebody please help me understand this error:
cvc-complex-type.2.4.a: Invalid content was found starting with element 'Team'. One of '{"":Player}' is expected.
my .xml file
...ANSWER
Answered 2021-Oct-06 at 04:14Your XML is not well-formed because it has multiple root elements. An XML document may only have a single root element.
Your options to repair this problem:
- Remove all
Team
elements after the first one, or - Wrap all
Team
elements in a single root element such asTeams
.
Option #1 would be sufficient alone; option #2 would require the addition of the Teams
wrapper element to your XSD.
QUESTION
working with a pandas.dataframe, such that:
...ANSWER
Answered 2021-Jun-30 at 21:02I used a more lightweight dataframe:
QUESTION
2 DML statements in question:
1.
...ANSWER
Answered 2021-Apr-22 at 06:57tokuro your first Query Was Right
but in Second query use , instead of and keyword to Update Multiple Column like this
QUESTION
I am trying to count and display only the words that are repeated more than once in a file. The basic idea is:
- You are given a file with names and characters like commas, colons, slashes, etc..
- Use the
cut
command to display only the first names in the file (other commands are also allowed). - Count and then display only the names repeated more than once.
I got to the point of counting and displaying all the names. However, I haven't found a way to display and to count only those names repeated more than once.
Here is a section of the file:
...ANSWER
Answered 2021-Mar-19 at 23:22You can filter out the rows with count 1
with grep
.
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