wakefield | Generate random data sets | Generator Utils library
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Generate random data sets
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QUESTION
I need to plot a conditional inference tree. I have selected the party::ctree() function. It works on the iris dataset.
...ANSWER
Answered 2022-Feb-17 at 22:40In each node (including the root node), ctree()
conducts an independence test for the dependent variable (problem
in your random data) and each of the explanatory variables (age
, gender
, smoker
, before
, after
). It computes the p-value for each of of the tests and selects the explanatory variable with the lowest p-value for splitting. But only if that p-value is significant at a certain significance level (adjusted for testing multiple explanatory variables). In your data this is not the case because, in fact, the dependent variable has been sampled independently from the explanatory ones. Therefore, the algorithm stops and does not split the root node.
Remarks: It is recommended to use the successor package partykit
rather than party
for fitting ctree()
. See also the accompanying vignette("ctree", package = "partykit")
for further details.
QUESTION
I am wanting to link a dataTableOutput
and a plot within a shiny app, so that when a row or a cell is selected within the table, the plot will reactively update with the data associated with that row.
Here is my data:-
Data
...ANSWER
Answered 2021-Nov-30 at 16:53As a first step, we can use reactiveValues
to hold the data from the rendered datatable
.
QUESTION
I am developing a feature within a shiny app that shows a dataTableOutput
and a plot associated with it. The plot displays the counts of unique ID's by group and date, while the table shows data associated with the time and date filtered. The column headings in the table are the dates within the data, which has been created using the pivot_wider
function with tidyr
. Here is some example code:-
Data
...ANSWER
Answered 2021-Nov-12 at 13:06You should consider asking two separate questions. For the first part, you could display the hour and event together, this way you can display one row for each channel. Then you can provide the key at the bottom of the table as only first 3 letters are displayed for each event. Try this
QUESTION
I want to run a bootstrap (k=10,000) and Kaplan-Meier calculations on the numeric column of three different data frames using lapply or sapply when functions are nested.
I have defined three functions to use as arguments in the command for boostrapping. One function returns a set of predefined quantiles, another the median, and a thrid a 95% confidence interval for the median. Bootstrapping fails altogether. The error I get for bootstrapping reads, "Error in x[, "Result", drop = FALSE] : incorrect number of dimensions"
KM only completes for the first data frame on the list (df).
I am using the boot and NADA2 libraries for the calculations.
Below is a REPREX of the data, functions, and commands:
...ANSWER
Answered 2021-Oct-31 at 06:12First of all you should use list
instead of c
and give the data frames names like so:
QUESTION
Apologies if this has been asked elsewhere / if I am using the wrong terms, I have been trying to search for the correct way to do this but with no success so far.
I have an experimental design with 3 experimental conditions using repeated measures outcomes (each participant completes 4 trials). The data I have currently is in long format (each participant ID is repeated 4 times). I am trying to calculate summary statistics for the demographic variables (age, gender, condition etc.) but I cannot figure out how to, for lack of a better word, collapse/merge the rows for each participant together to get the frequency data and/or summary stats.
Below I have a simulated dataset
...ANSWER
Answered 2021-Jun-10 at 20:44If your demographic data don't vary across treatment rounds, you can just run distinct() or unique() by id, similar to what Jon Spring suggested, like this:
QUESTION
I have a data frame which consist of many cities and their corresponding temperature:
...ANSWER
Answered 2021-Apr-23 at 17:21IIUC you want an ANOVA test where each sample contains the values Temp
of unique elements City
. If this is the case, you can do
QUESTION
I have made a for loop in R which sets the value of the variable mention.parkinsons
based on the value of the variables contained in the list mention.parkinsons.tags
:
ANSWER
Answered 2021-Apr-09 at 08:49dataframe$mention.parkinsons <- ifelse(dataframe$v1 + dataframe$v2 > 0, TRUE, FALSE)
QUESTION
I have a document with a property which is an array of objects. I would like to write a query that filters out objects from the child array. I thought the array_ contains would do the trick but it does not appear to filter the child array.
Query
...ANSWER
Answered 2021-Mar-25 at 01:21It seems you use official sample data as the item in your Cosmos DB container.
QUESTION
Yes i saw a lot of suggestions about similar topic and most of them didn't solve my question
here is a code from a book am trying to understand the work of the arrow function as am very used to the normal function... how can i write the below code with a normal function..
thank you
...ANSWER
Answered 2021-Mar-02 at 07:23Its super simple just change this
QUESTION
I am working with a call log data set from a telephone hotline service. There are three call outcomes: Answered, Abandoned & Engaged. I am trying to find out the average time taken by each caller to contact the hotline again if they abandoned the previous call. The time difference can be either seconds, minutes, hours or days but I would like to get all four if possible.
Here is some mock data with the variables I am working with:-
...ANSWER
Answered 2021-Feb-18 at 13:05Keep rows in the data where the current row is "Abandoned"
and the next row is not "Abandoned"
for each ID
. Find difference in time between every 2 rows to get time required for the caller to make another call to service after it was abandoned, take average of each of the duration to get average time.
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The r_data_frame function (random data frame) takes n (the number of rows) and any number of variables (columns). These columns are typically produced from a wakefield variable function. Each of these variable functions has a pre-set behavior that produces a named vector of n length, allowing the user to lazily pass unnamed functions (optionally, without call parenthesis). The column name is hidden as a varname attribute. For example here we see the race variable function:.
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