id stringlengths 16 145 | text stringlengths 1 179k | title stringclasses 1
value |
|---|---|---|
R_base_all/R_base_all_387_0.txt | [ RDocumentation ](/)
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# rawConnection: Raw Connections
## Description
Input and output raw connections.
## Usage... | |
R_base_all/80542_0_0.txt | Posit Community
# Split a string in a dataframe column | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_35_0.txt | hadley hadley
103k 34 34 gold badges 184 184 silver badges 245 245 bronze badges | |
R_base_all/simulation.html8_27_0.txt | The ` sample() ` function draws randomly from a specified set of (scalar)
objects allowing you to sample from arbitrary distributions of numbers.
> set.seed(1)
> sample(1:10, 4)
[1] 9 4 7 1
> sample(1:10, 4)
[1] 2 7 3 6
>
> ## Doesn't have to be numbers
> sample(letters, 5) ... | |
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# diag: Matrix Diagonals
## Description
Extract or replace the diagonal of a matrix, or cons... | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_113_0.txt | Share
Follow | |
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# Constants: Built-in Constants
## Description
Constants built into R .
## Usage
... | |
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# slice.index: Slice Indexes in an Array
## Description
Returns a matrix of integers indicat... | |
R_base_all/weighted-average-excel4_170_0.txt | April 30, 2012 at 1:45 pm
let me try this formula | |
R_base_all/weighted-average-excel4_125_0.txt | Help!
Reply | |
R_base_all/R_base_all_43_3.txt | # an hour ago
as.POSIXlt(Sys.time(), "GMT") # the current time in GMT
format(.leap.seconds) # the leap seconds in your time zone
print(.leap.seconds, tz = "PST8PDT") # and in Seattle's
# }
# NOT RUN {
<!-- % ..test should be diffable from here on: -->
# }
# NOT RUN... | |
R_base_all/getting-started-simulating-data8_97_0.txt | This is a hard mistake to catch. If you look carefully through the output
below you can see that the continuous variables start to repeat on line 10
because I used ` n = 10 ` instead of ` n = 20 ` .
data.frame(group = rep(LETTERS[3:4], each = 10),
x = runif(n = 10, min = 10, max = 15),
... | |
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# memlimits: Query and Set Heap Size Limits
## Description
Query and set the maximal size of... | |
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# startsWith: Does String Start or End With Another String?
## Description
Determines if ent... | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_206_0.txt | R, dplyr split dataframe by string in columns
#### Hot Network Questions | |
R_base_all/weighted-average-excel4_353_0.txt | ### Leave a Reply
Click here to cancel reply. | |
R_base_all/1370168_10_0.txt | FJCC once again you have come to my rescue I can't thank you enough. Yes the
weights add up to one for a date, an error I made. But from the code you
provided I can easily adjust it to fix the problem. Thank you, Thank you,
thank you!!!
system Closed May 19, 2022, 9:21pm 4 | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_124_0.txt |
> after
attr type_1 type_2
1 1 foo bar
2 30 foo bar_2
3 4 foo bar
4 6 foo bar_2
Share | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_211_0.txt | * Questions
* Help
##### Products | |
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# sign: Sign Function
## Description
` sign ` returns a vector with the signs of the corresp... | |
R_base_all/pandas.Series.str.split.html8_32_0.txt | Notes
The handling of the n keyword depends on the number of found splits: | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_59_0.txt | 94
5 years later adding the obligatory ` data.table ` solution | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_57_0.txt | ` tidyr::separate ` has been superseded by ` tidyr::separate_wider_delim ` .
– robertspierre | |
R_base_all/weighted-average-excel4_39_0.txt | 100 Excel Formulas List
From simple to complex, there is a formula for every occasion. Check out the
list now. | |
R_base_all/weighted-average-excel4_301_0.txt | September 9, 2014 at 8:55 am
@Hui | |
R_base_all/1358206-date-manipulation-volume-weighted-average1_23_0.txt | Post Cancel
* Robert Picard | |
R_base_all/R_base_all_339_1.txt | eview?_tag=rdocs&rdocsPath=packages%2Fbase%2Fversions%2F3.6.2%2Ftopics%2F.Platform&utm_source=r-docs&utm_medium=docs&utm_term=.Platform&utm_content=run_example_in_workspace)
# NOT RUN {
## Note: this can be done in a system-independent way by dir.exists()
if(.Platform$OS.type == "unix") {
... | |
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# Sys.sleep: Suspend Execution for a Time Interval
## Description
Suspend execution of R e... | |
R_base_all/weighted-average-excel4_334_0.txt | @Malyne
When you talk Percentage are you refering to percentage of the start weight,
target weight or Percentage of the weight to be lost? | |
R_base_all/weighted-average-excel4_354_0.txt | Name (required)
Mail (will not be published) (required) | |
R_base_all/getting-started-simulating-data8_13_0.txt | There are three arguments to ` rnorm() ` . From the ` Usage ` section of the
documentation:
> rnorm(n, mean = 0, sd = 1) | |
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# formatC: Formatting Using C-style Formats
## Description
` formatC() ` formats numbers ind... | |
R_base_all/weighted-average-excel4_238_0.txt | 1
Item #
Omelettes
Level
Code
Category Mix
Avg Price
2
256
Colorado Omelette
1
25.0%
$6.80 | |
R_base_all/weighted-average-excel4_356_0.txt | Δ
### Get FREE Excel & Power-BI Newsletter | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_56_0.txt | Nov 8, 2021 at 13:07
* 2 | |
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# print.data.frame: Printing Data Frames
## Description
Print a data frame.
## Usage
... | |
R_base_all/R_base_all_285_1.txt | ))
close(con)
unique(Encoding(A)) # will most likely be UTF-8
# }
Run the code above in your browser using [ DataCamp Workspace
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# getwd: Get or Set Working Directory
## Description
` getwd ` returns an absolute filepath ... | |
R_base_all/weighted-average-excel4_232_0.txt | 49. Frustrated Analyst!! says:
March 9, 2013 at 5:01 pm | |
R_base_all/1188876_12_0.txt | ` "[0-9]*," ` : this means "any digits any number of times, followed by a
comma". ` [0-9] ` looks for any digit; ` * ` means "any number of times ` ,
and ` ,` is a literal comma.
Note : if your real data has a different format than the toy example (i.e. if
the thing you're trying to remove isn't always digits followe... | |
R_base_all/pandas.Series.str.split.html8_43_0.txt |
>>> s = pd.Series(["foo and bar plus baz"])
>>> s.str.split(r"and|plus", expand=True)
0 1 2
0 foo bar baz
Regular expressions can be used to handle urls or file names. When pat is a
string and ` regex=None ` (the default), the given pat is compiled as a
regex only if ` len(p... | |
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# environment: Environment Access
## Description
Get, set, test for and create environments.... | |
R_base_all/weighted-average-excel4_245_0.txt | Reply
51. Not Your Average Analyst says: | |
R_base_all/weighted-average-excel4_124_0.txt | Hi there, I'm trying to calculate a weighted average in Excel of products that
are not in adjacent cells but cannot figure it out. For cells adjacent to each
other I use sumproduct but can't find info on how to do it if the cells I need
a weighted avg for are not next to each other.
IE
100,000(cell A1) units at $5 (... | |
R_base_all/weighted-average-excel4_274_0.txt | 2013 2012 Delta Weighted Change
Site A 1003 966 +3.8% 2.6%
Site B 307 380 -19.2% -5.0%
Site C 85 102 -16.7% 1.2%
Total 1,395 1,448 -3.7% -3.7%
Here is an example: with the weighted change previously calculated. Now I am
trying to determine how to calculate the weighted change with these new
figures below. My g... | |
R_base_all/weighted-average-excel4_128_0.txt | or
=SUMPRODUCT((MOD(ROW(A1:A5),4)=1)*(A1:A5)*(B1:B5))/SUMPRODUCT((MOD(ROW(A1:A5),4)=1)*(A1:A5))
or
=SUMPRODUCT((MOD(ROW(A1:A5),4)=1)*(A1:A5)*(B1:B5))/SUM((MOD(ROW(A1:A5),4)=1)*(A1:A5))
Ctrl Shift Enter
(I've been waiting a while to use those techniques again) | |
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# ISOdatetime: Date-time Conversion Functions from Numeric Representations
## Description
Co... | |
R_base_all/getting-started-simulating-data8_88_0.txt |
group = rep(letters[1:2], ?)
We need to repeat the whole vector three times instead of elementwise. | |
R_base_all/1358206-date-manipulation-volume-weighted-average1_24_0.txt | * Join Date: Mar 2014
* Posts: 1536
* * * *
#3 | |
R_base_all/weighted-average-excel4_275_0.txt | SEPT ’12 SEPT ’13
A 102 85
B 970 1,004
C 380 307
D 33 27
Total 1,452 1,396
Reply | |
R_base_all/getting-started-simulating-data8_46_0.txt | ## Example of using the simulated numbers from rpois()
Let’s explore the Poisson distribution a little more, seeing how the
distribution changes when the mean of the distribution changes. Being able to
look at how the Poisson distribution changes with the mean via simulation
helped me understand the distribution bett... | |
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# mean: Arithmetic Mean
## Description
Generic function for the (trimmed) arithmetic mean.
... | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_135_0.txt | 10
Here is a base R one liner that overlaps a number of previous solutions, but
returns a data.frame with the proper names. | |
R_base_all/weighted-average-excel4_325_0.txt | How to get Excel to ignore Not Assigned Yet ?
Reply | |
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# strwrap: Wrap Character Strings to Format Paragraphs
## Description
Each character string ... | |
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# order: Ordering Permutation
## Description
` order ` returns a permutation which rearrange... | |
R_base_all/weighted-average-excel4_131_0.txt | I am trying to find teh weighted average score for a particular student name
Dennis, Gina. How can I obtain this using the sumproduct formula if it's on 3
separate rows?
Agent Name ACD Calls Avg ACD Avg ACW Avg Hold AHT | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_198_0.txt | Split string in data frame into two columns
0 | |
R_base_all/R_base_all_198_5.txt | empty value of argument ` open ` .
For ` file ` the description is a path to the file to be opened or a complete
URL (when it is the same as calling ` url ` ), or ` "" ` (the default) or `
"clipboard" ` (see the ‘Clipboard’ section). Use ` "stdin" ` to refer to the
C-level ‘standard input’ of the process (which need n... | |
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# cut: Convert Numeric to Factor
## Description
` cut ` divides the range of ` x ` into inte... | |
R_base_all/weighted-average-excel4_158_0.txt | Reply
40. Manu says: | |
R_base_all/R_base_all_360_2.txt | %B `
Full month name in the current locale. (Also matches abbreviated name on
input.)
` %c `
Date and time. Locale-specific on output, ` "%a %b %e %H:%M:%S %Y" ` on input.
` %C `
Century (00--99): the integer part of the year divided by 100.
` %d `
Day of the month as decimal number (01--... | |
R_base_all/getting-started-simulating-data8_83_0.txt |
rep(LETTERS[3:5], each = 2)
[1] "C" "C" "D" "D" "E" "E"
No, if we use ` each ` then each element is repeated twice and some of the
combinations of ` group ` and the new variable will be missing. | |
R_base_all/weighted-average-excel4_59_0.txt | June 15, 2010 at 12:14 pm
Hello Chandoo, | |
R_base_all/R_base_all_380_2.txt | case ` scan ` returns a
list of vectors with the types given by the types of the elements in ` what `
. This provides a way of reading columnar data. If any of the types is ` NULL
` , the corresponding field is skipped (but a ` NULL ` component appears in
the result).
The type of ` what ` or its components can be one... | |
R_base_all/R_base_all_200_2.txt | distributions (including the one from which that
quote was taken) or sysadmins have chosen to copy a time-zone file to `
localtime ` . For a non-symlink, the ultimate fallback is to compare that file
to all files in the time-zone database.
Some Linux platforms provide two other mechanisms which are tried in turn
befo... | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_200_0.txt | Splitting a dataframe string column into multiple different columns in the
same table
1 | |
R_base_all/getting-started-simulating-data8_100_0.txt | * ` n ` , which is the number of replications to perform. This is to set the number of repeated runs we want.
* ` expr ` , the expression that should be run repeatedly. This is often a function. | |
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# Control: Control Flow
## Description
These are the basic control-flow constructs of the R... | |
R_base_all/R_base_all_198_7.txt | le.
Tfile <- file()
cat("abc\ndef\n", file = Tfile)
readLines(Tfile)
close(Tfile)
# }
# NOT RUN {
## fifo example -- may hang even with OS support for fifos
if(capabilities("fifo")) {
zzfil <- tempfile(fileext="-fifo")
zz <- fifo(zzfil, "w+")
writeLines("abc", zz)
... | |
R_base_all/simulation.html8_2_0.txt | Watch a video of this section
Simulation is an important (and big) topic for both statistics and for a
variety of other areas where there is a need to introduce randomness.
Sometimes you want to implement a statistical procedure that requires random
number generation or sampling (i.e. Markov chain Monte Carlo, the boo... | |
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# args: Argument List of a Function
## Description
Displays the argument names and correspon... | |
R_base_all/weighted-average-excel4_154_0.txt | 38. Khalid says:
April 3, 2012 at 10:35 am | |
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# shQuote: Quote Strings for Use in OS Shells
## Description
Quote a string to be passed to ... | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_6_0.txt | company blog
2. 3. Log in
4. Sign up | |
R_base_all/weighted-average-excel4_17_0.txt | May be your weights are more than 100 percent. Or may be they are less than
100 percent. In both cases, you can use the below formula variation.
` =SUMPRODUCT(B15:B19, C15:C19) / SUM(C15:C19) ` | |
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# prod: Product of Vector Elements
## Description
` prod ` returns the product of all the va... | |
R_base_all/pandas.Series.str.split.html8_3_0.txt | Site Navigation
* Getting started
* User Guide
* API reference
* Development
* Release notes | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_191_0.txt | split a column of string in several columns
0 | |
R_base_all/weighted-average-excel4_164_0.txt | Reply
* Manu says: | |
R_base_all/split-data-frame-string-column-into-multiple-columns0_149_0.txt | answered Feb 17, 2018 at 3:44
jpmorris jpmorris | |
R_base_all/R_base_all_3_1.txt | ounding:
# chol() unlike qr() does not use a tolerance.
try(chol(m))
(Q <- chol(m, pivot = TRUE))
## we can use this by
pivot <- attr(Q, "pivot")
crossprod(Q[, order(pivot)]) # recover m
## now for a non-positive-definite matrix
( m <- matrix(c(5,-5,-5,3), 2, 2) )
try(chol(... | |
R_base_all/weighted-average-excel4_326_0.txt | 70. Aveek Bose says:
January 15, 2016 at 1:59 pm | |
R_base_all/getting-started-simulating-data8_96_0.txt |
data.frame(group = rep(LETTERS[3:4], each = 10),
x = runif(n = 15, min = 10, max = 15),
y = runif(n = 15, min = 100, max = 150))
Error in data.frame(group = rep(LETTERS[3:4], each = 10), x = runif(n =
15, : arguments imply differing number of rows: 20, 15
B... | |
R_base_all/ts_moving_averages6_4_0.txt |
## Replication Requirements | |
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# Cstack_info: Report Information on C Stack Size and Usage
## Description
Report informatio... | |
R_base_all/R_base_all_301_1.txt | g/reports/tr10/) ) is likely to be increasingly
influential. Where available R by default makes use of ICU ( [
http://site.icu-project.org/ ](http://site.icu-project.org/) ) for collation
(except in a C locale).
## See Also
` [ factor ](/link/factor?package=base&version=3.6.2) ` for the behaviour with
factor argum... | |
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# write: Write Data to a File
## Description
The data (usually a matrix) ` x ` are written t... | |
R_base_all/R_base_all_65_2.txt | since deprecated wrappers for ` [ find.package
](/link/find.package?package=base&version=3.6.2) ` and ` [ path.package
](/link/path.package?package=base&version=3.6.2) ` .
## See Also
` [ Defunct ](/link/Defunct?package=base&version=3.6.2) ` , ` [ base-
deprecated ](/link/base-deprecated?package=base&version=3.6.2) ... | |
R_base_all/R_base_all_85_1.txt | tion ](/link/connection?package=base&version=3.6.2) ` : re-encoded
connections have some special handling of BOMs). The rest of this section
applies when this has not been done so ` x ` starts with a BOM.
Implementations will generally interpret a BOM for ` from ` given as one of `
"UCS-2" ` , ` "UTF-16" ` and ` "UTF-... | |
R_base_all/R_base_all_356_1.txt | e/preview?_tag=rdocs&rdocsPath=packages%2Fbase%2Fversions%2F3.6.2%2Ftopics%2Fdimnames&utm_source=r-docs&utm_medium=docs&utm_term=dimnames&utm_content=run_example_in_workspace)
# NOT RUN {
## simple versions of rownames and colnames
## could be defined as follows
rownames0 <- function(x) dimna... | |
R_base_all/index.html6_45_0.txt | M1 | M2 | M3
---|---|---
155.2651 | 238.8919 | 24.07884
160.1899 | 244.7838 | 26.29690
156.1196 | 245.0469 | 24.62519
158.9075 | 248.4630 | 26.37611
159.5190 | 243.4377 | 24.76282
165.0315 | 253.6626 | 28.54185
162.6464 | 245.9994 | 25.20926
163.5349 | 254.993... | |
R_base_all/R_base_all_52_2.txt | . Calling this function
in other circumstances will give undefined results.
An intrinsic limitation in the ` exit ` argument is that it won't work if the
function itself uses ` on.exit ` with ` add= FALSE ` (the default), since the
existing calls will override the one supplied by ` trace ` .
Tracing does not nest. An... | |
R_base_all/getting-started-simulating-data8_17_0.txt | Here’s clearer code to do the same thing, where I write out the mean and
standard deviation arguments explicitly even though I’m using the default
values. It is certainly not necessary to always be this careful, but I don’t
think I’ve run into a situation were it was bad to have clear code.
rnorm(n = 5, ... | |
R_base_all/getting-started-simulating-data8_62_0.txt |
rep(letters[1:2], times = 3)
[1] "a" "b" "a" "b" "a" "b"
## Set the output vector length with the length.out argument | |
R_base_all/getting-started-simulating-data8_56_0.txt |
letters[1:2]
[1] "a" "b"
And the last 17 ` LETTERS ` . | |
R_base_all/getting-started-simulating-data8_84_0.txt | This is a job for the ` times ` or ` length.out ` arguments, so the whole
vector is repeated. We can repeat the whole vector twice using ` times ` , or
via ` length.out = 6 ` . I decided to do the former.
In the result below we can see every combination of the two factors is present
once. | |
R_base_all/weighted-average-excel4_55_0.txt | June 15, 2010 at 10:25 am
Thanks Chandoo | |
R_base_all/weighted-average-excel4_333_0.txt | * Hui... says:
July 9, 2016 at 2:52 am | |
R_base_all/weighted-average-excel4_43_0.txt | Recent Articles on Chandoo.org
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