pct | reproduce data from the Propensity to Cycle Tool | Machine Learning library
kandi X-RAY | pct Summary
kandi X-RAY | pct Summary
The goal of pct is to increase the accessibility and reproducibility of the data produced by the Propensity to Cycle Tool (PCT), a research project and web application hosted at www.pct.bike. For an overview of the data provided by the PCT, clicking on the previous link and trying it out is a great place to start. An academic paper on the PCT provides detail on the motivations for and methods underlying the project. A major motivation behind the project was making transport evidence more accessible, encouraging evidence-based transport policies. The code base underlying the PCT is publicly available (see github.com/npct). However, the code hosted there is not easy to run or reproduce, which is where this package comes in: it provides quick access to the data underlying the PCT and enables some of the key results to be reproduced quickly. It was developed primarily for educational purposes (including for upcoming PCT training courses) but it may be useful for people to build on the the methods, for example to create a scenario of cycling uptake in their town/city/region.
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QUESTION
I'd like to have a running year to date pct change column in my pandas dataframe:
Here is the dataframe:
...ANSWER
Answered 2021-Jun-12 at 14:49If I understand you well, you want the running percent change with respect to the last value of the previous year. It’s maybe not the most elegant, but you can explicitly build this last-value-of-previous-year series.
To start, you build a series with the date indices and years as values:
QUESTION
After multiple searches I couldn't find a fit solution that would work in my case.
I have the following table:
...ANSWER
Answered 2021-Jun-11 at 16:07You'd need to do this with window functions in MySQL 8.0:
QUESTION
I am a begeinner in R and would like to make multiple fisher tests on mutiple row of a dataframe and add the p value/odd ratio on a barplot but need some help.
Here are my data
...ANSWER
Answered 2021-Jun-11 at 09:21Something like this, get the combinations:
QUESTION
What I'm trying to achieve:
- Create a formula that calculates a deadline date using four variables : StartDate, Over2%Date, Percentage, Currency
- If Percentage < 2%, the function should first calculate (StartDate + 120)
- If Percentage >= 2%, the function should first calculate the lesser of (StartDate + 120) and (Over2%Date + 30)
- The resulting date cannot fall on a weekend or a holiday, so the function should subtract days until a valid working day is found.
- The range containing the list of holidays to check will vary depending on Currency
Example:
...ANSWER
Answered 2021-Jun-04 at 10:31In VBA:
QUESTION
I have identified the below script as being really useful for anyone running Amazon Redshift:
...ANSWER
Answered 2021-Jun-03 at 17:10How about creating a new custom operator? It should accept all the cli arguments and then you can pass them to code from existing script. Here is some rough draft of what I would do:
QUESTION
I want to create an user defined function to eliminate code redundancies/repetition.
I want to plot multiple plots like this for multiple col2
(which has several levels) and GROUP by GROUP
column.
Sample images of the desired plots:
...ANSWER
Answered 2021-May-28 at 09:59Pass the column names as string and do these changes in the function.
QUESTION
In a pandas time-series, I am trying to find a combination measure of a threshold with a duration.
For instance, we want the number of periods > 5 minutes, where column ['pct'] is below 80
The dataframe looks like this:
timestamp pct 27-05-2021 10:11 95 27-05-2021 10:12 94 27-05-2021 10:13 80 27-05-2021 10:14 94 27-05-2021 10:15 80 27-05-2021 10:16 80 27-05-2021 10:17 80 27-05-2021 10:18 80 27-05-2021 10:19 80 27-05-2021 10:20 91 27-05-2021 10:21 NaN 27-05-2021 10:22 80 27-05-2021 10:23 80 27-05-2021 10:24 80 27-05-2021 10:25 80 27-05-2021 10:26 94It would thus need to identify 1 period(as we do not care to include NaN values)
I've gotten some of the way with the post from Ben B, and the answer from Alain T here: How to count consecutive periods in a timeseries above/below threshold?
I've attached an ugly image from microsoft paint to illustrate the problem
NB: It is quite a big dataframe, so I am not sure that iterating over the dataframe is the best idea, but any help is very much appreciated.
...ANSWER
Answered 2021-May-27 at 13:02You can groupby the consecutive 80s in the dataframe and then check the condition in each group with a list comprehension and get its length:
QUESTION
Using mtcars
as an example. I would like to write a function that creates a count
and pct
column such as below -
ANSWER
Answered 2021-May-25 at 20:27Assuming that the input is unquoted, convert to symbol with ensym
, evaluate (!!
) within group_by
while converting the symbol into a string (as_string
) and paste the prefix '_pct' for the new column name. In mutate
we can use :=
along with !!
to assign the column name from the object created ('colnm')
QUESTION
I am trying to create a function to get frequencies and proportions for a table1 with this code
my.render.cat <- function(x) { c("", sapply(stats.default(x), function(y) with(y, sprintf("%d (%0.0f %%)", FREQ, PCT)))) }
but when I apply it to the function table1() I get the results for proportions with decimal point instead of comma.
I've tried with options(OutDec= ",")
but nothing changes
Nor by changing Sys.locale for LC NUMERIC.
I've also tried with format(table1, decimal.mark=",")
but it doesn't work for table1 output
any suggestions?
I add a reproducible example using iris dataset and formatting Sepal.length to be able to calculate proportions.
table1::table1(~factor(Sepal.Length) | Species, data = iris, render.categorical=my.render.cat)
ANSWER
Answered 2021-May-26 at 03:42You can use sub
to replace .
with ,
.
QUESTION
Let's say I have some data as follows:
...ANSWER
Answered 2021-May-26 at 02:22You can use conditional aggregation:
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