Reductio is a Javascript library that makes it easy to do complex, efficient aggregations using Crossfilter
Questions tagged [reductio]
39 questions
1
vote
1 answer
How to make row chart for multilabel data in dc.js
I have data with one column that is a list of labels for each data point. I would like to use dc.js to make a row chart that plots the number of occurrences of each label.
Data looks like this:
Date , Labels
1/1/2015 , "A, B, C"
1/2/2015 ,…
Eric
- 244
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0
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0 answers
dc.js reductio error. I need to get unique counts of items that are repeated (and dependent) on other items
In my project, the data looks like
teacher,total_students,date,activity_type,activity_subject,project_id,teacher_id,student,submission_date,n_of_words,vocabulary_used,section_number,student_grade,grading_rubric,grading_score
…
Gilbert Mizrahi
- 43
- 3
0
votes
1 answer
Average in Crossfilter and DC.js
In my application, I have two charts and one table. The charts names are sellerChart and dateUnitPriceChart and table name is datatable.For sellerChart, I create dimension like this and then draw a chart :
var sellerDimension =…
MBehtemam
- 7,865
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reductio Max of a sum
I have a dataset I'm working with that is buildings and electrical power use over time.
There are two aggregations on these buildings that are simple sums across the entire timespan and I have those written. They end up looking like:
var reducer =…
K.Tibbs
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- 2
0
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DCjs-Crossfilter grouping keys based on values
I've have the following dataset.
[{..... att1: a, hits: 2},
{..... att1: a, hits: 2},
{..... att1: a, hits: 3},
{..... att1: b, hits: 2},
{..... att1: b, hits: 2},
{..... att1: c, hits: 9},
]
I want to create a bar chart where x values would be…
bashhike
- 129
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- 10
0
votes
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Prevent a graph from recalculating its own percentages
I have three Row Charts and my code calculates and updates the percentages for each chart whenever a user first lands on the page or clicks a rectangle bar of a chart. This is how it calculates the percentages
posChart:
% Position= unique…
Farah Javed
- 41
- 6
0
votes
1 answer
Crossfilter reductio post cap
I am having trouble trying to use reductio's post().cap functionality. My dataset is like so.
[{foo: 'one', bar: 'B', hits:10},
{foo: 'one', bar: 'B', hits:20},
{foo: 'two', bar: 'B', hits:50},
{foo: 'two', bar: 'B', hits:100},
{foo: 'one', bar:…
bashhike
- 129
- 1
- 10
0
votes
2 answers
custom ordering in custom reduce functions in dc.js crossfilter.js
I have the following custom reduce functions
function reduceAdd(p, v) {
p.vol_t += v.oqt;
p.prc_t += v.it;
++p.count;
// p.average = d3.round((p.total / p.count), 2);
return p;
}
function reduceRemove(p, v) {
p.vol_t -= v.oqt;
…
bashhike
- 129
- 1
- 10
0
votes
1 answer
excluding "missing" values in reductio.avg()
I was hoping to use reductio to compute averages within my crossfilter groups. My dataset includes missing values (represented by null) that I'd like to exclude when calculating the average. However, I don't see a way to tell reductio to exclude…
Joey
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