Plotting bar graphs using Google's Chart API
The Google Chart API also has great support for bar graphs. In this recipe, we will produce a bar graph of two sets of inputs in the same diagram to show the usefulness of this API.
Getting ready
Install the GoogleChart
package as follows:
$ cabal install hs-gchart
Create two files called input1.txt
and input2.txt
with numbers inserted line by line as follows:
$ cat input1.txt 2 5 3 7 4 1 19 18 17 14 15 16 $ cat input2.txt 4 2 6 7 8 2 18 17 16 17 15 14
How to do it…
- Import the Google Chart API library as follows:
import Graphics.Google.Chart
- Gather the two input values from both the text files and parse them as two separate lists of integers, as shown in the following code snippet:
main = do rawInput1 <- ...
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