Custom visual in power BI - RHTML visual
1) I created R html visual from following command
pbiviz new sampleRHTMLVisual -t rhtml
2) But I am not able to bind data
Question is how R script Access Power BI table data.
Demo file shows only uses default data in Rscript
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How to merge multiple data frames based on two columns?
I'm quite new to R and need some help.
I have multiple data frames for data collected over 4 days. Each of the data frames looks like this (put very simply):
Lat Long PM -33.9174 151.2263 8 -33.9175 151.2264 10 -33.9176 151.2265 9 -33.9177 151.2266 8
I want to merge multiple data frames based on their matching Long and Lat values, to average out all 'PM' values at a particular location. The end result will look something like this (for the 13th - 16th Feb):
Lat Long PM.13th Feb PM.14th Feb PM.15th Feb **Mean** -33.9174 151.2263 8 9 11 9.33 -33.9175 151.2264 10 11 12 11 -33.9176 151.2265 9 14 13 12 -33.9177 151.2266 8 10 11 9.66
I understand that merging 2 data frames is easy enough:
df = merge(data1, data2, by.x = c("Lat", "Long"), by.y = c("Lat", "Long"))
But how do I merge multiple dataframes based on matching Longitude and Latitude values?
Also, is there a way I can filter the data so that it will match up data which is within 0.001 Lat/Long value of each other? (Currently I am rounding the Lat/Long data to 3 decimal places, but it is duplicating my data).
R: How to expand a tidy table of ranked words
I have a tidy data frame of the form
> data.frame("topic" = c(1,1,2,2,3,3), "term" = c("will", "eat", "go", "fun", "good", "bad"), "score" = c(0.3, 0.2, 0.5, 0.4, 0.1, 0.05)) topic term score 1 1 will 0.30 2 1 eat 0.20 3 2 go 0.50 4 2 fun 0.40 5 3 good 0.10 6 3 bad 0.05
So the purpose of the table is to store the top n (in this case 2) scoring terms for each topic. This table is easy to work with, but I want to be able to view the data like this:
topic1 topic2 topic3 1 will go good 2 eat fun bad
In this new table, I don't care about the scores, I just want to see the top n scoring terms for each topic. I feel like this should be doable using
dplyror something but I'm not great with R.
R Add table of variable row numbers in the middle of an existing Excel sheet with openxlsx
I load an existing Excel sheet (template) with openxlsx.
I add a table starting at a specific column/row combination. Say cell A1.
The template contains more text that has to remain under the table. But I don't know yet how long the table will be. The text is now in cell C1 and if the table takes more than 3 rows than the text is overwritten with the table. I want the table to be written on newly inserted lines.
One possible solution I look for is how to insert a single row. At the moment just before writing the table to Excel I know the number of rows. So if there would be a function to insert a single row I could at precisely enough single rows programmatically.
These lines of code now overwrite what is there:
library(openxlsx) wb <- loadWorkbook("my_template.xlsx") data <- mtcars[1:sample(1:10, 1), ] # I NEED CODE TO INSERT A ROW FOR EVERY ROW IN THE DATA # BECAUSE THE TABLE STARTS AT CELL A1 AND CONTENTS OF CELL C1 SHOULD REMAIN UNDER THE TABLE # Insert table of variable height (rows) writeData(wb = wb, sheet = 1, x = data) saveWorkbook(wb, "file.xlsx", overwrite = T)
PowerBI DAX function to count number of occurrences using DISTINCT (Countif)
I am trying to create a column in PowerBI that counts how times a customer name occurs in a list.
I may be going in the wrong direction, but what I have so far is;
My SQL query returns a table of customer site visits (Query1), from which I have created a new table (Unique) and column (Customer) that lists the distinct names (cust_company_descr) from Query1;
Unique = DISTINCT(Query1[cust_company_descr])
What I need is a new column in the Unique table (Count) that will give me a count of how many times each customer name in the Query1 table appears.
If I were working in Excel, the solution would be to generate a list of unique values and do a COUNTIF, but I can't find a way to replicate this.
I have seen a few solutions that involve this sort of thing;
CountValues = CALCULATE ( COUNTROWS ( TableName ); TableName[ColumnName] = " This Value " )
The issue I have with this is the Unique table contains over 300 unique entries, so I can't make this work.
Example (The Count column is what I'm trying to create)
Any help is gratefully received.
Power BI and Cycle
everyone! I hope you can help me.
I have one main table, one of this column has link.
This link I try to use as source for my new table.
I try to create the variable and cycle. I want to get one table as the table position(2) with all links.
Thanks a lot!
How to extend powerBI token Id expiry time
How do I change the token Expiry time in power Bi?
Steps followed to generate token:
- Registered power Bi App
- After providing the details got the
client idand the
secret Id, I generated the
token Idon my
- Using this
token Id, I am able to access power bi report and bind into
It's working but after 1-hour
token Idexpires and I need to generate the
token Idagain by providing the power username and password which the user doesn't want to key in.