sd | Intuitive find & replace CLI | Command Line Interface library
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kandi X-RAY | sd Summary
sd is an intuitive find & replace CLI.
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Trending Discussions on sd
QUESTION
I have a dataframe that identifies a set of values with an id:
...ANSWER
Answered 2022-Mar-22 at 21:24How about reshaping wider and using paste0()
?
QUESTION
I have a data frame with dates and magnitudes. For every case where the dates are within 0.6 years from each other, I want to keep the date with the highest absolute magnitude and discard the other.
- This includes cases where multiple dates are all within 0.6 years from each other. Like
c(2014.2, 2014.4, 2014.5)
which should give `c(2014.4) if that year had the highest absolute magnitude. - For cases where multiple years could be chained using this criterion (like
c(2016.3, 2016.7, 2017.2)
, where 2016.3 and 2017.2 are not within 0.6 years from each other), I want to treat the dates that are closest to one another as a pair and consider the extra date in the criterion as a next candidate for another pair, (so the output will read like thisc(2016.3,
2016.7,2017.2)
if 2016.3 had the highest absolute magnitude).
data:
...ANSWER
Answered 2022-Mar-16 at 11:18You can try to perform complete clustering on dates by using hclust
. The manhattan (i.e. absolute) distances are calculated between pairs of dates. The "complete" clustering method will ensure that every member of a cluster cut at h
height will be distant at most h
from the other members.
QUESTION
The figure below is a conceptual diagram used by Michael Clark, https://m-clark.github.io/docs/lord/index.html to explain Lord's Paradox and related phenomena in regression.
My question is framed in this context and using ggplot2
but it is broader in terms of geometry & graphing.
I would like to reproduce figures like this, but using actual data. I need to know:
- how to draw a new axis at the origin, with a -45 degree angle, corresponding to values of
y-x
- how to draw little normal distributions or density diagrams, or other representations of the values
y-x
projected onto this axis.
My minimal base example uses ggplot2
,
ANSWER
Answered 2022-Feb-06 at 17:04Fun question! I haven't encountered it yet, but there might be a package to help do this automatically. Here's a manual approach using two hacks:
- the
clip = "off"
parameter of thecoord_*
functions, to allow us to add annotations outside the plot area. - building a density plot, extracting its coordinates, and then rotating and translating those.
First, we can make a density plot of the change from initial to final, seeing a left skewed distribution:
QUESTION
I recently submitted a package to CRAN that passed all the automatic checks, but failed passing the manual ones. One of the errors were the following:
Please do not set a seed to a specific number within a function.
Please do not modifiy the .GlobalEnv. This is not allowed by the CRAN policies.
I believe the lines of code that these comments are referring to are the following
...ANSWER
Answered 2022-Jan-07 at 17:16When you fix the seed, if the user try this code with the same parameters, the same results will be obtained each time.
Supposing that this chunk of code is inside a larger chunk related only to the simulation, just get rid of the setseed()
and try something like that:
QUESTION
I have a model like this
...ANSWER
Answered 2021-Dec-15 at 10:57All commands from the plot3D
package include a command add = T
. With that it is very easy to plot the second surface, by just adding add = T
to the second plot command.
QUESTION
I have seen many relatable posts for my question but couldn't find the proper solutions. read excel sheet containing multiple tables, tables that have headers with a non white background cell color
here is the link of that excel data: https://docs.google.com/spreadsheets/d/1m4v_wbIJCGWBigJx53BRnBpMDHZ9CwKf/edit?usp=sharing&ouid=107579116880049687042&rtpof=true&sd=true
So far what i have tried:
...ANSWER
Answered 2021-Dec-12 at 02:30Here is one way of creating dataframes out of that excel file. See comments in the code itself.
You can uncomment some print() to see how this is developed.
CodeQUESTION
I have a figure created with facet_wrap visualizing the estimated density of many groups. Some of the groups have a much smaller variance than others. This leads to the x axis not being readable for some panels. Minimum reproducable example:
...ANSWER
Answered 2021-Dec-01 at 22:08You can add if(seq[2]-seq[1] < 10^(-r)) seq else round(seq, r)
to the function equal_breaks
developed here.
By doing so, you will round your labels on the x-axis only if the difference between them is above a threshold 10^(-r)
.
QUESTION
I have downloaded a list of all the towns and cities etc in the US from the census bureau. Here is a random sample:
...ANSWER
Answered 2021-Nov-12 at 22:48I have such a solution. And I'm surprised myself that I used two loops for
!! Incredibly, I did it. First things first.
My proposal is based on a simplification. However, the mistake you will make at short distances will be relatively small. But the time gain is huge!
Well, I propose to count the distance in Cartesian coordinates, not spherical.
So we're going to need a simple function that computes the Cartesian coordinates based on the two arguments latitude
and longitude
.
Here is our LatLong2Cart
feature.
QUESTION
Suppose the random variable X ∼ N(μ,σ2) distribution
and I am given the observations x =(0.7669, 1.6709, 0.8944, 1.0321, 0.0793, 0.1033, 1.2709, 0.7798, 0.6483, 0.3256)
Given prior distribution μ ∼ N(0, (100)^2) and σ2 ∼ Inverse − Gamma(5/2, 10/2).
I am trying to give a MCMC estimation of the parameter.
Here is my sample code, I am trying to use Random Walk MCMC to do the estimation, but it seems that it does not converge:
...ANSWER
Answered 2021-Nov-11 at 10:55There are a few problems with the code.
You calculate the log-likelihood, but ignore the log-prior. So effectively you're using a uniform prior, not the one you specified.
The initial calculation of the log likelihood has parentheses in the wrong place:
QUESTION
I have a random walk with some drift. My goal is to create a function that adds a column to this data.table
labeling the "zone" its in based on its cumulative % gain and % drawdown.
ANSWER
Answered 2021-Oct-06 at 14:54I don't think a rolling calculation is the right way to go: typically they have fixed windows, whereas this is a bit more dynamic. Similarly, a cumulative operation (e.g., cumsum
) won't work for similar reasons. (That's not to say that I can't warp a zoo::rollapply
approach to do this, but I think it'd be much less efficient than this recommended approach.)
Here's a simple while
loop that appears to provide the zone
you're asking for:
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