I have a line diagram with ISO-Week number on the x-axis and pct on the y-axis as seen in this picture:
For the x-axis I have two different columns selected so that I can swap between showing the data for ISO-week or by Name of month:
As you can see in the first picture there is a spike in the orange data line at week 39. To me the filter context is clear, it's only calculated based on ISO-week since I haven't drilled down into the hierarchy of the x-axis.
however if I switch places of the x-axis data columns in the right panel to this:
and I step down one step in the visual using this button:
so that I am once again only looking at ISO-week number, the spike in the orange line at week 39 is now gone:
Getting different results depending on the order the different data columns have been added to the visual when only using one of them seems, to me, more like a bug rather than something to do with the filter context.
Or what is it this time I haven't grasped when it comes to filter context??
EDIT 1:
I've attached a bowdlerised version of the pbix-file. The three diagrams shows the three cases:
Top: ISOWeek and Name of month in x-axis field which results in the spike
Middle: Name of month and ISOWeek in x-axis field, view stepped down to ISOWeek which results in no spike
Bottom: Only ISOWeek in x-axis field which results in no spike.
pbix file
I know that by removing the visual filter on the top diagram (Data Line 1 > -100%) removes this effect, though removing the filter doesn't explain the effect.
The reason this is happening is that October 1 is in week 39 of 2017 but not in week 39 of 2018, so you're getting a -100% YoY change from the group ISOWeek 39 & October, which you're filtering out via the visual level filter on you measure' values.
Related
I have data being written to Elasticsearch that I wanted to visualize in Kibana, but I'm having problems with the visualization.
I have a process writing when it starts {ProcessStartTime} and when it stops {ProcessStopTime}
I'm trying to create what I thought was a simple visualization:
A vertical bar chart with Count as the Y-Axis and {ProcessStartTime} and {ProcessStopTime} as bars on the X-Axis.
The problem is, instead of count of 480 for the {ProcessStartTime} as one vertical bar and a count for 389 for {ProcessStopTime} as another vertical bar. It separates out all unique {ProcessStartTime} entires so I have a count of 1 with a thousand vertical bars. Moreover, I appears I cannot add more than one term, just sub categories, so {ProcessStopTime} isn't on the bar chart at all. So I decided to try the Filter aggregation, which allowed me to get a count of all entries with "ProcessStartTime" in the body. However, I cannot add "ProcessStopTime" as another filter as those don't coexist.
My current solution is to have two charts, using the Filter aggregation, then compare the charts side-by-side to compare the counts. For obvious reasons, I'd like those combined, but I just don't see how to have two X-Axis buckets, or to group the data as it needs to be.
I am missing something obvious?
I might get wrong what you are trying to do and I can't comment on your question to ask for details, but here are a few things that you can do:
Get all entries regardless of their content (empty search query). Keep the Y-axis metrics for Aggregation-Count.
After that you can set a bucket for the X-axis with Filters aggregation, and use 2 filters.
Filter 1: ProcessStartTime: *
Filter 2: ProcessStopTime: *
This setup should give you 2 bars with the count of records that have the given attributes.
The other option is to make a new attribute, for example 'event', and give this attribute the values 'ProcessStartTime' and 'ProcessStopTime', and make a Terms aggregation bucket setup on event.keyword.
I hope this helps.
I have the following result set giving me a specific status of an item . I need to build a SSRS 2015 Gantt chart to represent this data. I am having difficulty getting the data to display.
Result Set: StatusDate,Status,BegDate,EndDate, StatusDays
In the chart, I want the category to be on monthly intervals of the range provided (BegDate – EndDate) and the series to be each DAY in the range provided (BegDate – EndDate).
The bars should represent the item being Up or Down with “Up” being Green and “Down” being black for each day (x-axis) of each month (y-axis).
Hoped for Results
The current preview shows the X & Y axis' correctly, but does not show any "bars" to represent the data.
This is my first chart using SSRS and I am quite lost. Does anyone know where I can get a true tutorial on Range Bar Charts for SSRS 2015 or how I might overcome this “data Display” challenge I am stuck on? I appreciate any direction / guidance offered.
This issue was ultimately resolved by #AlanSchofield through another (and probably more clear) question, found here.
After choosing the correct chart, setting the correct properties, and determining the correct values I was able to get the chart I needed, but the behavior was still off. It would not show the a status more than once.
To fix this, and simply put, I needed to sort my data using Dense_Rank and then add the new "sort" column to my Series Group in the Chart properties. Worked like a charm!
Also got some useful guidelines on this blog post.
Need to display line in a line-chart , with the ability to move the tiles, to see a max bitrate value line, to see labels and axis pointers on hover, grouped with a table and time Slider.Y dimension needs to display "bitrate total" or "bitrate Avg" (as defined in code). X dimension needs to display 15 min interval in scope of weeks.
I can upload my data into a table but not into the line graph. I can see points on the graph using .renderDataPoints() but no lines.
I checked the data - could not find any null/NaN values being returned, not using any old version of colors.
The code can be found in https://jsfiddle.net/dani2011/bu2ag0f7/8/. Tried to replace my CSV with var data but nothing is being displayed at the moment in the fiddle. The code as whole is displayed in https://groups.google.com/forum/#!topic/dc-js-user-group/MEslyF2RWRI
Any help would be greatly appreciated.
Here's my go-to-answer for how to put data into a jsFiddle. Basically it's easiest to stick it in an unused tag in the HTML. bl.ocks.org / blockbuilder.org is easier for this.
Here's a fork of your fiddle with the data loaded that way:
http://jsfiddle.net/gordonwoodhull/bu2ag0f7/17/
I also had to remove the spaces from the column names, because those got d3.csv confused and caused the BITRATE calculations to fail.
There was also some stray code inside the renderlet which was failing with a complaint about dim not existing.
The main reason why data was not displaying was because the input groups were not producing usable aggregated data. Your data is very close together in time, so aggregating by week would aggregate everything.
The way to debug this is to put a breakpoint or a console.log before the chart initialization and look at the results of group.all()
In this case bitrateWeekMinIntervalGroupMove and minIntervalWeekBitrateGroup were returning an array with one key/value pair. No lines can be drawn with one point. :)
It looks like you originally wanted to aggregate by 15 minute intervals, so let's get that working.
For whatever reason, there are two levels of aggregation in crossfilter, the dimension level and the group level. The dimension will have first crack at generating a key, and then the group will further refine these keys.
Your min15 function will map each time-key to the 15-minute mark before it, but it needs data that is higher than 15 minutes in resolution. So let's put these groups on the dateDimension, which hasn't already been mapped to a lower resolution:
var minIntervalWeekBitrateGroup = dateDimension.group(min15).reduceSum(function (d) {
return +d.BITRATE
});
var bitrateWeekMinIntervalGroupMove = dateDimension.group(min15).reduce(
...
Great, now there are 30 data points. And it draws lines.
I made the dots a bit smaller :) because at 30 pixels it was hard to see the lines.
Zooming in using the range chart reveals more of lines:
There still seem to be glitches in the reduce function (or somewhere) because the lines drop to zero when you zoom in too far, but hopefully this is enough to get you moving again.
My fork of your fiddle: http://jsfiddle.net/gordonwoodhull/bu2ag0f7/25/
I am trying to show machine states over time. Part of this is to reproduce/automate a report that used to be done by hand. It consists of coloring 2minute 'time slices' in Excel based on what the machine is doing.
(Sorry, not enough reputation to post a picture, but it is a classic heatmap where the state drives the color. Some non DC-JS fiddle: http://jsfiddle.net/ww6Lbnc5/4/)
I was able to generate most of what I want in the following jsfiddle:
http://jsfiddle.net/hwhfxz2t/14/
See fiddle for code.
The total state duration (for selected time frame) is shown in the pieChart, followed by the individual state lines and then the heatmap that people are used to. (the ZOOM and date selection buttons do not work in the fiddle but are there to select specific data ranges or zoom in if you like).
The line charts uses the original representation of the states, which consists of a time the state is entered and a duration.
In order to make the heat map work, I had to (I think) take the original data and convert it into individual minute chunks and mark them with a state. So for instance the original data specifying:
RUN state starting 14:30 for 300 seconds
becomes:
14:30=RUN, 14:31=RUN, 14:32=RUN, 14:33=RUN and 14:34=RUN
The code in lines 233-297 loops through the original data and generates a new one that does this. In cases where there is more than one state within a given minute, the last state survives.
This works okay but it seems that this code is exactly what is normally done in group().reduce(add,remove,init). But in this case I need to add multiple timeslots depending on the duration of a state.
Also, because it is now using a different crossfilter, maps do not update each other.
Here are my questions related to this:
Can I display a heatmap without supplying information for all individual
'cells'? (i.e. straddle cells based on a value, similar to rowspan in a table)
Can I add multiple values at once inside group().reduce()?
Is there an easy way to invert the yAxis so 0 is at the top?
When clicking a row in the heatmap, it selects a column and vice-versa?
I'm not sure if this should be in the crossfilter group. If so please ignore my rambling. If someone knows how to keep the charts linked by grouping better, please let me know.
--Nico
Concerning Question 3:
DC.js heatmaps currently do not support custom order functions on axis but there is a pull request that has been merged into the developing branch and should be accessible to the public soon.
You could manually edit the dc.js file to set the sorting in heatmaps to a custom function. In the latest (2.0.0-beta10) version it is the following line:
rowValues.sort(d3.ascending);
and accordingly
colValues.sort(d3.ascending);
I have a chart in SSRS that needs to have a flexible x-axis grid line interval (show at most 6 major grid lines), and I'm using the formula I've used dozens of times before:
=Floor(Count(Fields!Date.Value)/5)
However, for some strange reason, the chart only ends up showing the first value on the x-axis. The line gets plotted correctly, but there are no grid lines and no x-axis labels save the first one.
What's going on?
Well I found the answer. The data set I'm using has multiple fields, some of which are not being used by the chart. However, because the column I'm grouping on may have several repeat values, I had to change Count() to CountDistinct(). This resolved the issue.