Need help for creating a side-by-side scatter plot for assignment

[gozcubukcu]

Hello,
I am new to Knime and to programming. I am trying to create a scatter diagram that shows different data all at once. I tried to use the extensions in the Hub but am error called “Execute Failed: R View Table 0:24:0:10 R Home “C:/Program Files/KNIME” is invalid.” But my program is installed in the specified path.
Here is a screen shot of my work can you please help me out?
Thanks

[mlauber71]

@gozcubukcu welcome to the KNIME forum. You might want to take a look at this example. Also: could you provide us with the R code oder the whole workflow:

KNIME and R ggplot2 – „the beautiful Violin Plot that has it all“

With the help of KNIME components and the R (collection R | official R) package ggplot2 you could create a violin plot with a lot of additional statistics in one chart. The KNIME component makes it easy to configure the options even if you are not familiar with R code. Violin plots are very effective to show the structure of numeric variables and compare them across different groups. Their width represents the number of cases that would have the values on the y-axis. It is widely used e.g. as a…

Since this is an assignment one ode could be to adapt your example in this fashion and use that so you would have contributed to the task

Stacked and grouped bar chart

@Timoalt welcome to the KNIME forum. As it happens I am preparing a few examples of advanced graphics with KNIME and used your question to adapt an example of Stacked Bars with Grouped Barplots. In you case it might be Region = group Year = facet Satisfaction = stack Percentages = value [image] You would have to prepare the data accordingly. The values would be taken as they are so you will have to calculate your percentages before (and make sure they add up to 100% per sub-group). And y…

[gozcubukcu]

Hello Mlauber,

Thanks for the warm welcome!
I was able to install the R package and set it up. But now I got a new error " There is no package called “gridExtra” ad could not find function “grid.arrange”.
I don’t have a R code, how do I get one?

Thanks,

[mlauber71]

@gozcubukcu the component by @ashokharnal uses R and R packages in order to create the graphics. You will have to install R properly and adapt the example

For Starters you should follow the official guide. You will have to install R and I would recommend to install RStudio as well. You might want to follow the official guide:

https://docs.knime.com/latest/r_installation_guide/index.html#_introduction

then you will have to instal the necessary packages like ggplot2, grid and gridExtra that are being used in the component.

install.packages("ggplot2")
install.packages("grid")
install.packages("gridExtra")

Here are the original links to the component and an example workflow:

Multiple side-by-side conditional boxplots of one numeric target – ashokharnal

Discovering relationships in features--Heart Disease – ashokharnal

My example uses another approach with Conda Environment Propagation that is not integrated with this example - one might adapt that but maybe they is too complicated right now.

[gozcubukcu]

@mlauber71 thanks for the help. I was able to install and use R. But I had to change my data sets as well. I am trying to get a violin chart working which has multiple variables.
thanks,

[mlauber71]

@gozcubukcu not sure what you mean by multiple variables. I have an example based on this Python/Seaborn violin plot configured as a knime node:

https://seaborn.pydata.org/examples/grouped_violinplots.html

KNIME & Python Graphics -Grouped violinplots with split violins – mlauber71

If you find a suitable python code it might be quite easy to adapt that to knime:

Workflows: Python, Graphic – KNIME Hub