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Questions tagged [data-presentation]

Data presentation is a way of putting results of experiments into graphs, charts and tables. It is a visual way to look at the acquired data, see what happened and make interpretations. It is also an efficient way to show the data to others.

Data presentation is a way of putting results of experiments into graphs, charts and tables. It is a visual way to look at the acquired data, see what happened and make interpretations. It is also an efficient way to show the data to others.

20 questions
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Presentation of data from Mondrian OLAP engine + Olap4j

I'm doing a little bit of planning of an application that uses Mondrian OLAP engine with Olap4j and should present/display data to user. I understand all the back-end stuff, but I'm not sure how should I display the data in the view layer. For…
lisak
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User-friendly tools for retrieving data from a SQL Server database

We have several SQL Server databases containing measurements from generators that we build. However, this useful data is only accessible to a few engineers since most are unfamiliar with SQL (including me). Are there any tools would allow an…
KAE
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Loading large data in jquery

I have a web service that returns data, quite a large set, could be 600 rows, by 20 columns. What is the fastest most efficient way to load this data into an html table in Jquery code? I tried creating the table html by looping through the data…
sarsnake
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Massive Data Grid in GWT

I have looked at custom implementations of data grids, but none had the resources I need, they are: live update of rows (the last entries are going to be on top of the table, that is LIFO), adding Widgets like CheckBox, Button, ComboBox... and that…
gfe
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GWT cell widgets with overlay types issues

I have taken the Cell Table example from google developer's guide and made the following changes: Use overlays instead of Java POJOs Use a EditTextCell to edit one column For my surprise, when running the code the Cell Table is adding an extra…
Javier Ferrero
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How iterate over List and render each item in JSF Facelets

I am wondering how to display a List as obtained below in a Facelet: public List searchByString(String string) { return getEntityManager().createNamedQuery("Userdetails.findByUsername").setParameter("username", "%" + string +…
user2061913
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Plotly: one line, different colors

I want to make a 2-dimensional plot with Plotly or Plotly.Express, where a single line of the graph has different colors. That is, I have a list of x-values and a list of y-values leading to points on my graph that should be connected. The…
NerdOnTour
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How to generate random categorical data from existing ones to fill missing values - Python

I have a column with missing categorical data and I am trying to replace them by existing categorical variables from the same column. I do not want to use the mode because I have too many missing data, it will skew the data and I would rather not…
Killi Mandjaro
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What is the output of PCA and how it is useful?

PCA is a dimensionality reduction algorithm that helps in reducing the dimensions of our data. The thing I haven't understood is that PCA gives an output of eigen vectors in decreasing order such as PC1,PC2,PC3 and so on. So this will become new…
FunnyCoder
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Gnuplot, Opencv. Disply a histogram from cv::Mat

Is it possible to plot a matrix(histogram) like [v(1);...;v(i-1);v(i)] in gnuplot. This is the standard output with stringstream << cv::Mat(). This is the y values for hue values 0 to 180. [25; 0; 0; 0; 0; 0; 1; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0;…
Poul K. Sørensen
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How to load data from one data frame to other in R?

I have a mini data frame index data district month 1 data1 District-1 month1 2 data2 District-2 month2 and so on I want to load the data values from the data column to the data frame which has a structure…
Ram Patil
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How to do live data analysis?

I have worked with R to do data analysis for making prediction model. Now I need to build solution for live data analysis. That's find patterns from data and show an alert if some condition is going to occur. Like if I am receiving RSSI from the…
XCeptable
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How to create a circular multi-histogram graph using the R package circlize?

I apologize in advance since I am a beginner user in R. I have a big data file, with multiple factors (15), and multiple tested samples from various group within each factor (5). I have calculated the means for each group within each factor. To…
adam.bj
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Splitting String numerical values into new columns-Pandas Dataframe

I have a dataframe column having values like this: Salary Offered ---------------------- £18,323 per annum £18,000 - £22,000 per annum Salary not specified £15,000 - £17,000 per annum, pro-rata £37,000 - £45,000 per annum £9,100 - £9,152 per…
Debadri Dutta
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R: how to optimize the position of labeling in plot

Hi I guess that I have quite a rudimentary question here. I have a plot like this but as you could easily notice, some of the label could not be displayed (some are overlapped with the symbols, some are just out of the figure frame) I noticed that…
Jun
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