id stringlengths 16 145 | text stringlengths 1 179k | title stringclasses 1
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|---|---|---|
R_base_all/weighted-average-excel4_58_0.txt | Reply
3. Cyril Z. says: | |
R_base_all/weighted-average-excel4_97_0.txt | 17. Hui... says:
August 30, 2011 at 11:46 pm | |
R_base_all/index.html6_47_0.txt | Note that the values are not exact, but should become closer to the specified
values as increase the sample size ` n ` . We can visualise the data too; for
example, we might look at the close correlation between \\(M_{1}\\) and
\\(M_{2}\\) using a scatterplot, just as we would for data sampled from the
field.
... | |
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R_base_all/1358206-date-manipulation-volume-weighted-average1_1_0.txt | * Forums
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R_base_all/R_base_all_81_1.txt | d to UTF-8.
If ` attrib.as.set ` is true, as by default, comparison of attributes view
them as a set (and not a vector, so order is not tested).
If ` ignore.bytecode ` is true (the default), the compiled bytecode of a
function (see ` [ cmpfun ](/link/cmpfun?package=base&version=3.6.2) ` ) will
be ignored in the compa... | |
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# cat: Concatenate and Print
## Description
Outputs the objects, concatenating the represent... | |
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# asplit: Split Array/Matrix By Its Margins
## Description
Split an array or matrix by its m... | |
R_base_all/weighted-average-excel4_40_0.txt | 20 Excel Templates
Calendars, invoices, trackers and much more. All free, fun and fantastic. | |
R_base_all/weighted-average-excel4_63_0.txt | 4. Krok says:
June 15, 2010 at 12:26 pm | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_168_0.txt | Surprisingly, another tidyverse solution is still missing - you can also use `
tidyr::extract ` , with a regex.
library(tidyr)
before <- data.frame(attr = c(1, 30, 4, 6), type = c("foo_and_bar", "foo_and_bar_2"))
## regex - getting all characters except an underscore till the first underscor... | |
R_base_all/R_base_all_266_1.txt | used.
` .onLoad ` , ` .onUnload ` , ` .onAttach ` and ` .onDetach ` are looked for
as internal objects in the namespace and should not be exported (whereas `
.Last.lib ` should be).
Note that packages are not detached nor namespaces unloaded at the end of an
R session unless the user arranges to do so (e.g., _via_ ... | |
R_base_all/R_base_all_303_1.txt | artial matching of column names if
the match is unique, see ` [ Extract
](/link/Extract?package=base&version=3.6.2) ` ). The replacement method (for `
$ ` ) checks ` value ` for the correct number of rows, and replicates it if
necessary.
When ` [ ` and ` [[ ` are used with two indices ( ` x[i, j] ` and ` x[[i, j]]
` )... | |
R_base_all/getting-started-simulating-data8_63_0.txt | The ` length.out ` argument has ` rep() ` repeat the whole vector. However, it
repeats the vector only until the defined length is reached. Using `
length.out ` is another way to get unbalanced groups.
Rather than defining the number of repeats like we did with ` each ` and `
times ` we define the length of the output... | |
R_base_all/weighted-average-excel4_102_0.txt | Thanks for your reply.
I understand the concept but I dont understand why last date is not included.
Instead it should have more weighted as compared to other. | |
R_base_all/weighted-average-excel4_331_0.txt | 71. Malyne says:
July 8, 2016 at 6:49 pm | |
R_base_all/R_base_all_328_1.txt | dlls <- getLoadedDLLs()
getDLLRegisteredRoutines(dlls[["base"]])
getDLLRegisteredRoutines("stats")
# }
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R_base_all/index.html6_16_0.txt | Sampling from a poisson distribution
Many processes in biology can be described by a Poisson distribution . A
Poisson process describes events happening with some given probability over an
area of time or space such that \\(X\sim Poisson(\lambda)\\) , where the
rate parameter \\(\lambda\\) is both the mean and v... | |
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# eval: Evaluate an (Unevaluated) Expression
## Description
Evaluate an R expression in a ... | |
R_base_all/pandas.Series.str.split.html8_33_0.txt | * If found splits > n , make first n splits only
* If found splits <= n , make all splits | |
R_base_all/R_base_all_350_1.txt | tracted by the ` units `
function, which also has a replacement form. If the units are changed, the
numerical value is scaled accordingly. The replacement version keeps
attributes such as names and dimensions.
Note that ` units = "days" ` means a period of 24 hours, hence takes no
account of Daylight Savings Time. Dif... | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_75_0.txt | Aniko Aniko
18.7k 4 4 gold badges 49 49 silver badges 45 45 bronze badges | |
R_base_all/weighted-average-excel4_310_0.txt | Do you mind show some light? Having trouble to find in the criteria.
Reply | |
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# as.POSIX*: Date-time Conversion Functions
## Description
Functions to manipulate objects o... | |
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# is.finite: Finite, Infinite and NaN Numbers
## Description
` is.finite ` and ` is.infinite... | |
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# substitute: Substituting and Quoting Expressions
## Description
` substitute ` returns the... | |
R_base_all/getting-started-simulating-data8_24_0.txt | I’ve seen others change the mean and standard deviation to create a variable
that is within some specific range, as well. For example, if the mean is large
and the standard deviation small in relation to the mean we can generate
strictly positive numbers. (I usually use ` runif() ` for this, which we’ll
see below.)
... | |
R_base_all/weighted-average-excel4_14_0.txt | So, if you have values in B4:B8 and the corresponding weights in C4:C8, you
can use SUMPRODUCT like this to get weighted average.
` =SUMPRODUCT(B4:B8, C4:C8) ` | |
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# scale: Scaling and Centering of Matrix-like Objects
## Description
` scale ` is generic fu... | |
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# invisible: Change the Print Mode to Invisible
## Description
Return a (temporarily) invisi... | |
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# eapply: Apply a Function Over Values in an Environment
## Description
` eapply ` applies `... | |
R_base_all/simulation.html8_24_0.txt |
> set.seed(1)
>
> ## Simulate the predictor variable as before
> x <- rnorm(100)
Now we need to compute the log mean of the model and then exponentiate it to
get the mean to pass to ` rpois() ` . | |
R_base_all/1358206-date-manipulation-volume-weighted-average1_15_0.txt | Code:
* Example generated by -dataex-. To install: ssc install dataex
clear
input long rating_date str4 reason str14 cusip_id long execution_date double(quanti price)
19402 "UPG" "200300606" 19054 4860364.5 40.5
19402 "UPG" "200300606" 19072 770000 38.5
19402 "UPG" "200300... | |
R_base_all/weighted-average-excel4_64_0.txt | I use it to calculate the Avg Mkt Price Vs our Products.
Main difficultie: to place the calculation on a Pivot Table 😀 | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_155_0.txt | Add a comment |
3 | |
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# sweep: Sweep out Array Summaries
## Description
Return an array obtained from an input arr... | |
R_base_all/weighted-average-excel4_135_0.txt | Reply
30. ann says: | |
R_base_all/ts_moving_averages6_12_0.txt | A simple moving average can also be plotted by using ` autoplot() ` contained
in the ` fpp2 ` package. This is helpful if your data is already in time
series data object. For example, if our savings rate data were already
converted to a time series object as here…
savings.ts <- economics %>%
select... | |
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# writeLines: Write Lines to a Connection
## Description
Write text lines to a connection.
... | |
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# libPaths: Search Paths for Packages
## Description
` .libPaths ` gets/sets the library tre... | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_52_0.txt | 103k 34 34 gold badges 184 184 silver badges 245 245 bronze badges
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# locales: Query or Set Aspects of the Locale
## Description
Get details of or set aspects o... | |
R_base_all/weighted-average-excel4_38_0.txt | – Brenda
FREE Goodies for you... | |
R_base_all/R_base_all_43_2.txt | ble and the names of the base time zone and the alternate (daylight-
saving) time zone. Sometimes this may just be of length one, giving the [ time
zone ](/link/time%20zone?package=base&version=3.6.2) name.
` "POSIXct" ` objects may also have an attribute ` "tzone" ` , a character
vector of length one. If set to a non... | |
R_base_all/weighted-average-excel4_269_0.txt | * Chandoo says:
October 24, 2013 at 5:44 am | |
R_base_all/weighted-average-excel4_283_0.txt | Reply
60. J Scott says: | |
R_base_all/weighted-average-excel4_279_0.txt | 58. bageshri says:
November 10, 2013 at 8:59 am | |
R_base_all/R_base_all_193_1.txt | the default is only appropriate when writing and then reading
files on the same platform).
## See Also
The ‘R Data Import/Export’ manual.
` readChar ` to read/write fixed-length strings.
` [ connections ](/link/connections?package=base&version=3.6.2) ` , ` [
readLines ](/link/readLines?package=base&version=3.6.2) ... | |
R_base_all/weighted-average-excel4_116_0.txt | Hi. I have a series of prices, and I'm trying to develop a formula which gives
me a projected price... So for example:
Prices (Earliest to Most Recent)
2.50
2.90
3.50
4.30
5.00
?.??
I want to see what the price is likely to be in the cell ?.??, and I want the
most recent price to be more relevant than th... | |
R_base_all/simulation.html8_4_0.txt | For each probability distribution there are typically four functions available
that start with a “r”, “d”, “p”, and “q”. The “r” function is the one that
actually simulates randon numbers from that distribution. The other functions
are prefixed with a
* ` d ` for density
* ` r ` for random number generation
* ... | |
R_base_all/weighted-average-excel4_129_0.txt | refer: http://chandoo.org/forums/topic/i-need-idea-on-a-simpler-formula
Reply | |
R_base_all/getting-started-simulating-data8_48_0.txt | The vector of values we simulated here fall between 1 and 11.
summary(y)
Min. 1st Qu. Median Mean 3rd Qu. Max.
1.00 3.00 5.00 4.83 6.00 11.00 | |
R_base_all/weighted-average-excel4_132_0.txt | Francis, Luis 951 139 29 13 180
Malave, Luz 910 143 28 86 256
Dennis, Gina 920 550 290 750 1590
Dennis, Gina 920 165 33 62 260
Sawyer, Curvin 1,536 236 4 60 299
Dennis, Gina 1,267 198 32 77 306
Reply | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_96_0.txt | Feb 12, 2021 at 13:58
Add a comment | | |
R_base_all/weighted-average-excel4_243_0.txt | Reply
* Head Scratcher says: | |
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# list: Lists -- Generic and Dotted Pairs
## Description
Functions to construct, coerce and ... | |
R_base_all/getting-started-simulating-data8_71_0.txt | Here we’ll repeat the two values twice each and then repeat that pattern until
we hit a total final vector length of 7.
rep(letters[1:2], each = 2, length.out = 7)
[1] "a" "a" "b" "b" "a" "a" "b" | |
R_base_all/getting-started-simulating-data8_43_0.txt | I use ` rpois() ` for generating counts for creating data to be fit with
generalized linear models. This function has also helped me gain a better
understanding of the shape of Poisson distributions with different means.
The Poisson distribution is a single parameter distribution. The function
looks like: | |
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# taskCallbackManager: Create an R-level Task Callback Manager
## Description
This provides ... | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_72_0.txt |
before <- data.frame(attr = c(1,30,4,6), type=c('foo_and_bar','foo_and_bar_2'))
out <- strsplit(as.character(before$type),'_and_')
do.call(rbind, out)
[,1] [,2]
[1,] "foo" "bar"
[2,] "foo" "bar_2"
[3,] "foo" "bar"
[4,] "foo" "bar_2"
And to combine: | |
R_base_all/getting-started-simulating-data8_26_0.txt | I’ll keep the standard deviation at 1 but will draw data from three
distribution centered at three different locations: one at 0, one at 5, and
one at 20. I request 10 total draws by changing ` n ` to 10.
Note the repeating pattern: the function iteratively draws one value from each
distribution until the total number... | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_153_0.txt | Follow
answered Dec 3, 2010 at 23:52 | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_165_0.txt | edited Jan 4, 2020 at 2:28
answered Jan 4, 2020 at 2:22 | |
R_base_all/R_base_all_311_1.txt | gh ls is in pos = 3
exists("ls", 2, inherits = FALSE) # false
## These are true (in most circumstances):
identical(ls, get0("ls"))
identical(NULL, get0(".foo.bar.")) # default ifnotfound = NULL (!)
# }
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# Extract: Extract or Replace Parts of an Object
## Description
Operators acting on vectors,... | |
R_base_all/weighted-average-excel4_330_0.txt | Please attach a sample file to clarify the question and get a more specific
answer
Reply | |
R_base_all/R_base_all_257_1.txt | used.
Junction points and symbolic links are followed, so information is given about
the file/directory to which the link points rather than about the link.
## See Also
` [ Sys.readlink ](/link/Sys.readlink?package=base&version=3.6.2) ` to find
out about symbolic links, ` [ files ](/link/files?package=base&version=... | |
R_base_all/index.html6_19_0.txt | Sampling from a binomial distribution in R with ` rbinom ` is a bit more
complex than using ` runif ` , ` rnorm ` , or ` rpois ` . Like those previous
functions, the ` rbinom ` function returns some number ( ` n ` ) of random
numbers, but the arguments and output can be slightly confusing at first.
Recall that a binom... | |
R_base_all/weighted-average-excel4_179_0.txt | May 1, 2012 at 9:34 am
below is the snapshot as am unable to upload the excel
AHT is the time consumed for each of the transaction and the next figure is
the daily count of transactions | |
R_base_all/R_base_all_30_1.txt | s&utm_term=eigen&utm_content=run_example_in_workspace)
# NOT RUN {
eigen(cbind(c(1,-1), c(-1,1)))
eigen(cbind(c(1,-1), c(-1,1)), symmetric = FALSE)
# same (different algorithm).
eigen(cbind(1, c(1,-1)), only.values = TRUE)
eigen(cbind(-1, 2:1)) # complex values
eigen(print(cb... | |
R_base_all/index.html6_23_0.txt | As would be expected, most of the time ‘heads’ occurs around 500 times out of
1000, but usually the actual number will be a bit lower or higher due to
chance. Note that if we want to simulate the results of individual flips in a
single trial, we can do so as follows.
flips_10 <- rbinom(n = 10, size = 1, ... | |
R_base_all/weighted-average-excel4_101_0.txt | August 31, 2011 at 6:26 pm
Hi Hui, | |
R_base_all/weighted-average-excel4_294_0.txt | Can you post a set of data or email me ?
Reply | |
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# Random: Random Number Generation
## Description
` .Random.seed ` is an integer vector, con... | |
R_base_all/R_base_all_195_1.txt | 1234
sqrt(1i) # remember elementary math?
utils::str(0xA0)
identical(1L, as.integer(1))
## You can combine the "0x" prefix with the "L" suffix :
identical(0xFL, as.integer(15))
# }
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R_base_all/weighted-average-excel4_264_0.txt | Reply
55. Paycheck Easy says: | |
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# serialize: Simple Serialization Interface
## Description
A simple low-level interface for ... | |
R_base_all/weighted-average-excel4_41_0.txt | 13 Advanced Pivot Table Skills
Power Query, Data model, DAX, Filters, Slicers, Conditional formats and
beautiful charts. It's all here. | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_169_0.txt | Share
Follow | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_116_0.txt | * 1
This is very useful. Years later, I am wondering if it is possible to
introduce colnames that can be inserted in a for loop. For example, I want to
split_into_multiple 10 columns (or more) and I don't want to split them each
column at a time. I want the resulting split columns to bind together. I can't
find the... | |
R_base_all/weighted-average-excel4_24_0.txt | ` =SUMPRODUCT((C5:C16)* (B5:B16=F5) ,D5:D16)/SUMIFS(D5:D16, B5:B16,F5 ) `
How does this formula work? | |
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# length: Length of an Object
## Description
Get or set the length of vectors (including lis... | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_183_0.txt | * The reverse mullett model of software engineering
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# bindenv: Binding and Environment Locking, Active Bindings
## Description
These functions r... | |
R_base_all/weighted-average-excel4_287_0.txt | Hi Chandoo, in your example you have average salary of a department and you
are trying to calculate average salary of an employee. for that you need to
know "actual total salary" of each department and then use that in the
weighted average formula, you have used avg. salary of the department instead.
isn't this wrong ?... | |
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# as.function: Convert Object to Function
## Description
` as.function ` is a generic functi... | |
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# socketSelect: Wait on Socket Connections
## Description
Waits for the first of several soc... | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_42_0.txt | * Thanks hadley, very convinient method, but there is one thing can be improved, if there is NA in the original column, after separation it will become sevaral empty string in result columns, which is unwanted, I want to keep the NA still NA after separation
– cloudscomputes | |
R_base_all/1358206-date-manipulation-volume-weighted-average1_22_0.txt | * 3 likes
## Comment | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_203_0.txt | split a row into columns in a data frame in r
1 | |
R_base_all/R_base_all_55_0.txt | [ RDocumentation ](/)
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# system.file: Find Names of R System Files
## Description
Finds the full file names of file... | |
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# row+colnames: Row and Column Names
## Description
Retrieve or set the row or column names ... | |
R_base_all/R_base_all_164_0.txt | [ RDocumentation ](/)
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# encodeString: Encode Character Vector as for Printing
## Description
` encodeString ` esca... | |
R_base_all/R_base_all_176_1.txt | )
# }
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# warnings: Print Warning Messages
## Description
` warnings ` and its ` print ` method prin... | |
R_base_all/weighted-average-excel4_2_0.txt | Menu
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# .Machine: Numerical Characteristics of the Machine
## Description
` .Machine ` is a variab... | |
R_base_all/ts_moving_averages6_29_0.txt | And to compare this moving average to the actual time series:
autoplot(AirPassengers, series = "Data") +
autolayer(ma(AirPassengers, order = 12, centre = T), series = "2x12-MA") +
ggtitle("Monthly Airline Passengers (1949-60)") +
labs(x = NULL, y = "Passengers")
| |
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# labels: Find Labels from Object
## Description
Find a suitable set of labels from an objec... | |
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# tabulate: Tabulation for Vectors
## Description
` tabulate ` takes the integer-valued vect... |
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