Top "Charts" questions

Charts are a graphical representation of data, most often in the format of a graph or diagram.

What is the algorithm to create colors for a heatmap?

Assuming values are normalized from 0 to 1, what is the algoritm to get a color to create a heatmap like this? 1 …

graph colors charts visualization heatmap
use python to generate graph in excel

I have been trying to generate data in Excel. I generated .CSV file. So up to that point it's easy. …

python excel charts export-to-excel
Tables and charts using PDFsharp

I just started with a project that requires me to write to PDF file. After some googling I decided on …

c# charts pdf-generation pdfsharp
Which Gantt chart/Project management tool would you recommend for linux?

I need a Project management tool that works in Linux, and has Gantt charts. It doesn't have to be free, …

linux project-management charts gantt-chart
Gantt Chart online

I need to insert a horizontal bar chart in a web page. The thing I have to do is very …

javascript python charts gantt-chart
How do you set percentage in Google Visualization Chart API?

How do you set the vertical axis to display percent such as 25%, 50%, 75%, 100%?

api charts google-visualization number-formatting
Zoomable, Google-Finance-style time series graph in D3 or Rickshaw?

I want to create a time series line graph in D3, with a smaller version of the graph below that …

javascript graph charts d3.js zoom
MPAndroidChart how to set y-axis min and max value or set default zoom?

I use MPAndroidChart to display the stock chart, but the Y line value is so close,the chart is like …

android charts mpandroidchart
How to produce stacked bars within grouped barchart in R

I have the following graph test <- data.frame(person=c("A", "B", "C", "D", "E"), value1=c(100,150,120,80,150), value2=…

r charts ggplot2 bar-chart
Algorithm for "nice" grid line intervals on a graph

I need a reasonably smart algorithm to come up with "nice" grid lines for a graph (chart). For example, assume …

algorithm charts graph