attitude | Attitude : orientation of an object in space | Animation library
kandi X-RAY | attitude Summary
kandi X-RAY | attitude Summary
A rotation of the sphere can be represented in various ways, such as:. The attitude module allows conversions and computations between all these representations. See for details.
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QUESTION
Im not sure if i use the wrong data or if there is and edit i need to do and not seeing it. It would be nice if someone could take a look at the code. The problem here is that yerr at the first bar is at x=0 and in the image the yerr is somewhere around 2.5
Does someone know what i did wrong or forgot to edit?
my code:
...ANSWER
Answered 2022-Mar-29 at 01:03yerr is meant to be the difference between the mean and the min/max. Now you're using the full difference between max and min. You might divide it by 2 to get a better approximation. To obtain the exact values, you could calculate them explicitly (see code example).
Further, by default, the bars are center aligned vs their x-position. You can use align='edge' to left-align them (as x_pos is calculated as the minimum of the range the bar represents). You could also set clip_on=False in the err_kw to make sure the error bars are never clipped by the axes.
QUESTION
I've got a batch of survey data that I'd like to be able to subset on a few specific columns which have 0-10 scale data (e.g. Rank your attitude towards x as 0 to 10) so that I can plot using using ggplot() + facet_grid. Faceting will be using 3 hi/med/low bins calculated as +1 / -1 standard deviation above the mean. I have working code, which splits the overall dataframe into 3 parts like so:
...ANSWER
Answered 2022-Mar-10 at 09:07library(tidyverse)
climate_experience_data <- structure(list(Q4 = c(2, 3, 3, 5, 4, 3), Q5 = c(
1, 3, 3, 3, 2,
2
), Q6 = c(4, 3, 3, 3, 4, 4), Q7 = c(4, 2, 3, 5, 5, 5), Q53_1 = c(
5,
8, 4, 5, 4, 5
)), row.names = c(NA, -6L), class = c(
"tbl_df",
"tbl", "data.frame"
))
climate_experience_data %>%
mutate(
bin = case_when(
Q53_1 > mean(Q53_1) + sd(Q53_1) ~ "high",
Q53_1 < mean(Q53_1) - sd(Q53_1) ~ "low",
TRUE ~ "medium"
) %>% factor(levels = c("low", "medium", "high"))
) %>%
ggplot(aes(Q4, Q5)) +
geom_point() +
facet_grid(~bin)
QUESTION
I am amazed at how many topics on StackOverflow deal with finding out the endianess of the system and converting endianess. I am even more amazed that there are hundreds of different answers to these two questions. All proposed solutions that I have seen so far are based on undefined behaviour, non-standard compiler extensions or OS-specific header files. In my opinion, this question is only a duplicate if an existing answer gives a standard-compliant, efficient (e.g., use x86-bswap), compile time-enabled solution.
Surely there must be a standard-compliant solution available that I am unable to find in the huge mess of old "hacky" ones. It is also somewhat strange that the standard library does not include such a function. Perhaps the attitude towards such issues is changing, since C++20 introduced a way to detect endianess into the standard (via std::endian), and C++23 will probably include std::byteswap, which flips endianess.
In any case, my questions are these:
Starting at what C++ standard is there a portable standard-compliant way of performing host to network byte order conversion?
I argue below that it's possible in C++20. Is my code correct and can it be improved?
Should such a pure-c++ solution be preferred to OS specific functions such as, e.g., POSIX-
htonl? (I think yes)
I think I can give a C++23 solution that is OS-independent, efficient (no system call, uses x86-bswap) and portable to little-endian and big-endian systems (but not portable to mixed-endian systems):
ANSWER
Answered 2022-Feb-06 at 05:48compile time-enabled solution.
Consider whether this is useful requirement in the first place. The program isn't going to be communicating with another system at compile time. What is the case where you would need to use the serialised integer in a compile time constant context?
- Starting at what C++ standard is there a portable standard-compliant way of performing host to network byte order conversion?
It's possible to write such function in standard C++ since C++98. That said, later standards bring tasty template goodies that make this nicer.
There isn't such function in the standard library as of the latest standard.
- Should such a pure-c++ solution be preferred to OS specific functions such as, e.g., POSIX-htonl? (I think yes)
Advantage of POSIX is that it's less important to write tests to make sure that it works correctly.
Advantage of pure C++ function is that you don't need platform specific alternatives to those that don't conform to POSIX.
Also, the POSIX htonX are only for 16 bit and 32 bit integers. You could instead use htobeXX functions instead that are in some *BSD and in Linux (glibc).
Here is what I have been using since C+17. Some notes beforehand:
Since endianness conversion is always1 for purposes of serialisation, I write the result directly into a buffer. When converting to host endianness, I read from a buffer.
I don't use
CHAR_BITbecause network doesn't know my byte size anyway. Network byte is an octet, and if your CPU is different, then these functions won't work. Correct handling of non-octet byte is possible but unnecessary work unless you need to support network communication on such system. Adding an assert might be a good idea.I prefer to call it big endian rather than "network" endian. There's a chance that a reader isn't aware of the convention that de-facto endianness of network is big.
Instead of checking "if native endianness is X, do Y else do Z", I prefer to write a function that works with all native endianness. This can be done with bit shifts.
Yeah, it's constexpr. Not because it needs to be, but just because it can be. I haven't been able to produce an example where dropping constexpr would produce worse code.
QUESTION
A few months ago I played around with AWS CDK and so I of course did the cdk bootstrap.
At that time I stopped playing around and thought I'd never use it again. Having a kind of neatly attitude in this kind of things (and missing an undo or delete option being delivered with the cdk itself :/ ) I deleted all cdk objects from my account.
Or at least I thought so, because now (starting to play around again), calling cdk bootstrap does "nothing":
✅ Environment aws://xxxxxxxxx/eu-central-1 bootstrapped (no changes).
But trying to cdk deploy gives me:
fail: No bucket named 'cdk-XXXXXXXXXXX-eu-central-1'. Is account XXXXXXXXXXXX bootstrapped?
Well yes right...I don't have any buckets at all at the moment.
Is there a way to cdk bootstrap --force that I'am missing? Is there a list of all objects I should have deleted? I find a lot suggestions for people having problems with their stacks, but I have no idea how to fix this.
Edit: I just "solved" the problem, by creating a bucket with the given cryptic name...but that doesn't feel right. So I leave this Question open, to see if there is a better way to do it.
...ANSWER
Answered 2022-Feb-27 at 10:25Bootstrapping creates a Stack called CDKToolkit, which has the CloudFormation resources CDK needs to deploy. You can safely "uninstall-reinstall" it:
QUESTION
I have data that follows:
...ANSWER
Answered 2022-Feb-26 at 17:57You can create a CTE that returns the list and use in the WHERE clause of the UPDATE statement:
QUESTION
I'm getting error string index out of range when I getting simple text from post request and want to show data in array.
ANSWER
Answered 2022-Feb-13 at 09:27I believe the response is coming back in plain text and not a ready to use dictionary.
Try the following using json.loads:
QUESTION
I’m a college student and I’m trying to build an underwater robot with my team.
We plan to use stm32 and RPi. We will put our controller on stm32 and high-level algorithm (like path planning, object detection…) on Rpi. The reason we design it this way is that the controller needs to be calculated fast and high-level algorithms need more overhead.
But later I found out there is tons of package on ROS that support IMU and other attitude sensors. Therefore, I assume many people might build their controller on a board that can run ROS such as RPi.
As far as I know, RPi is slower than stm32 and has less port to connect to sensor and motor which makes me think that Rpi is not a desired place to run a controller.
So I’m wondering if I design it all wrong?
...ANSWER
Answered 2022-Feb-12 at 15:18Robot application could vary so much, the suitable structure shall be very much according to use case, so it is difficult to have a standard answer, I just share my thoughts for your reference.
In general, I think Linux SBC(e.g. RPi) + MCU Controller(e.g. stm32/esp32) is a good solution for many use cases. I personally use RPi + ESP32 for a few robot designs, the reason is,
- Linux is not a good realtime OS, MCU is good at handling time critical tasks, like motor control, IMU filtering;
- Some protection mechnism need to be reliable even when central "brain" hang or whole system running into low voltage;
- MCU is cheaper, smaller and flexible to distribute to any parts inside robot, it also helps our modularized design thinking;
- Many new MCU is actually powerful enough to handle sophisticated tasks and could offload a lot from the central CPU;
QUESTION
I'm trying to clean my dataset. The dataset comes from a survey that had a randomizer. It displayed different scenarios to each participant. My dataset now has a column for each different scenario with the name I chose for it (e.g.: A_SM_GIL or D_DF_GIL etc.). The underscore "" separates the different scenarios variables that are combined together to form a new scenario. A, D_, B_, N_ are the timing for a disclosure message during the advertising, respectively AFTER, DURING, BEFORE,and NONEF. SM_, and DF_, stand for the type of terminology used. Respectively SYNTHETIC MEDIA, and DEEPFAKE. The last bit, LOR_, GIL_, describes the brand's ad. Respectively L'Oreal, Gillette.
What I am left now is a bunch of columns that show with a "1" the scenario each observation was exposed to before answering a 7point likert scale to measure their attitudes towards the ad shown. The scale used is called ADTEST (AD_) and has different items (BORING_1, IRRITATING_1, etc).
Only 1 scenario for observation is possible. So one observation will have a column with 1 and all the others with NAs.
My goal is to compare the different scenarios' attitudes. For example, studying if positioning the disclosure before the ad makes a difference than positioning it after the ad. I would like to plot the different answers (using a 7 point likert scale i.e.: AD_BORING_1 etc) people gave but divided into the different scenarios to compare them.
...ANSWER
Answered 2022-Feb-08 at 20:19What you want to do is transform many dummy variables to one factor variable (with levels corresponding to dummy variable names).
I give a small reproducible example similar to your data:
QUESTION
How to return for loop values without any html template in flask , in the below code I need to get all jokes values having multiple jokes route but i want them to be displayed as a list one below the other , currently the output I am getting is as a whole list item , I am aware i can use jinja for this but here i want to do without creating any html page
...ANSWER
Answered 2022-Jan-28 at 09:55you can use this function, adding a
QUESTION
I have several dataframes looking like this:
time_hr cell_hour id attitude hour 0.028611 xxx 1 Cruise 1.0 0.028333 xxx 4 Cruise 1.0 0.004722 xxx 16 Cruise 1.0I want to do a specific multiplications between rows of the 'time_hr' column.
I need to multiply each row with other rows and store the value to use later.
eg. if the column values are [2,3,4], I would need 2x3, 2x4, 3x2, 3x4, 4x2, 4x3 values.
A part of the problem is that I have several dataframes which have different number of rows so I would need a generic way of doing this.
Is there a way? Thanks in advance.
ANSWER
Answered 2022-Jan-12 at 21:38It sounds like a cartesian product to me:
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