AnyDate | Swifty Date & Time API inspired from Java 8 DateTime API | Date Time Utils library
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kandi X-RAY | AnyDate Summary
Swifty Date & Time API inspired from Java 8 DateTime API.
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QUESTION
I try to create an app in Shiny and all selectInput
were dynamic reactive objects but at the moment they make some plot (output$myplot) with the combination of the variables select and if(){}
condition using observe({})
, my plot doesn't work (PEST == unique(stands_ds$PEST) : length of larger object is not multiple of length of smaller object
). The problem is with the final selection object selectedvariable4 and try to used selectedvariable4, selectedvariable4(),selectedvariable4()$ID_UNIQUE and unique(selectedvariable4()$ID_UNIQUE) without success. In my example:
ANSWER
Answered 2021-Jun-05 at 23:04The lines where we are filter
ing and subset
would have ==
and some of them on the rhs
of the operator is unique
values i.e. it could be a single value or more than one value. With ==
, it is elementwise comparison and it can work only when the rhs object is of length
1 or have the same length
as the lhs object. With length
1, it recycles and have no issue, but if the length
is more than 1 and not equal to the other object, the recycling will do erroneous output and it may also gives the length
warning if the length is not a multiple of the other object.
It may be safer to use %in%
instead. Below is the updated code (not tested though)
QUESTION
Firs time I faced with such issue, I have (the working case):
...ANSWER
Answered 2021-Jun-02 at 06:14I figured out it. The problem was that date must be defined in this case:
QUESTION
I have a dataframe that has been put together by binding the data together after reading in multiple .csv files. The data comprises 6 variables and approx. 560,000 observations.
One variable 'date.time' unfortunately is currently in two formats dd/mm/yyyy hh:mm:ss
and dd/mm/yy hh:mm
. What I would like to do is mutate()
the variable to a date only format.
I have tried df %>% mutate(date = as.Date(dmy_hms(date.time))
but I get an error failed to parse as you would expect given I have two date/time formats in the same column.
Another way I have tried is df %>% mutate(date = anydate(date.time))
using anydate()
from the anytime package, but this is far too slow and the CPU environment I'm working in uses all available memory given the size of the dataframe.
I'm hoping there is a swift and easy way of addressing this.
Thanks.
...ANSWER
Answered 2021-Mar-11 at 10:33How about this:
QUESTION
Currently solve this with a workaround, but I would like to know if there is a more efficient way.
See below for exemplary data:
...ANSWER
Answered 2021-Mar-07 at 10:12Essentially, there are two approaches I find that are both viable solutions.
Solution 1
First, proposed by lil_barnacle is an elegant one-liner that reads like following:
QUESTION
I have a dataset that list multiple records per ID
that have duration (start & end ) associated with them.
It is in the form:
ANSWER
Answered 2021-Mar-03 at 14:07Group by rleid
of treatment
values get min
and max
of start
and end
columns.
QUESTION
I have a data set as .csv file that I read in using the fread() function. This works perferctly fine. So far, date columns in the raw input file are stored as numeric in the format YYYYMMDD
, such as f.ex. 20200131 or 20210308.
Up until now, I used data.table syntax to transform the type of data for a given column that was not "guessed" correctly by fread()
like this:
ANSWER
Answered 2021-Feb-23 at 16:57The difference comes from the fact that anytime::anydate
sets an attribute tzone
, unlike as.Date
.
QUESTION
So I think I'm overthinking this one, I've managed to create a functional code, but its incredibly slow and I think that if I use Purrr correctly I will see massive improvements in the functionality of this.
I have a dataset as below
...ANSWER
Answered 2021-Jan-13 at 05:12Here is an alternate approach which I think would be faster than the purrr
approach since we are not dealing with data row wise.
QUESTION
I have the following character:
...ANSWER
Answered 2020-Dec-20 at 12:12Using read.table
we may split at \n
. The strip.white=TRUE
omits elements containing just spaces. The result pattern now is date - event - date ... which we can nicely now convert row-wise into a matrix
.
QUESTION
need to write a script to check if a specific files list are present or not in a directory
files in directory /dir look_like
ABC_YYYYMMDD_EF.txt
GHI_YYYYMMDD_LM.txt
and list has names like
l=[ABC_EF, GHI_LM,PQR_ST,..]
so have to ignore YYYYMMDD which can be anydate in this format ,can anyone tell should we use grep or regex and how
like output: \
ANSWER
Answered 2020-Dec-08 at 10:28Using awk:
QUESTION
In my app and on client side I run a query which is:
...ANSWER
Answered 2020-Dec-04 at 05:01Since query.equalTo
is a string value, you can use any operations that work on a string in security rules.
For example:
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