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I'm still a newbie in R, I have some questions and help about using ggplot.

I've been using spadeR for getting species richness and diversity in each sampling location, and I want to make barplot for my data visualization. But I have some trouble getting the right code for ggplot.

This is an example of what I want my data visualization will be.

But my barplot just look like this

I want to add a legend on top of the frame, I tried to add it, but it turn out really bad.

Can anyone tell me how to fix this using ggplot, and also for making 2 barplot in one frame like the examples above, how to use parfrow? Hope anyone will teach me how to fix this. Thank you so much!

Here my data set for richness species in 10 sampling locations, includes estimates score of species richness and standard errors.

I'm a newbie for using Rstudio, so I've some problems I want to ask.

I want to make my scalebar for species composition in 10 sites, and add the number inside the scalebar.

The result like this.

I want to put the frequency number of species composition inside the scale bar. I've been tried to put code of geom_text, but the result is not appropriate at all.

I hope there's an answer to fix this. Thank you so much.

Here is my data, also the coding that I run in R.

How to convert an short to unsigned char *buf in C ?

I read my data

Apologies in advance, my Java is rubbish. I have cobbled together (from other people) a script which executes a script , spooling the output to a text file, which I then send to another system. Here is the crontab entry

I am trying to connect to a Websocket API hosted in AWS from my Flutter app.
I am using the web_socket_channel package to build a real-time tchat app.

I have different routes for my WebSocket API : $connect, $disconnect and sendMessage. I would like to send events to the server and get responses in dart.

So far, i have no way to debug this as the web_socket_channel doesn't offer this possibility... So i am simply not receiving events nor sending them (no logs in my CloudWatch log group, whereas i have some using wscat or Postman tool that are both working fine).

Here is my code :

I have a data frame with measurements every 10 minutes (n=85000 values, thus should be most efficient). I need to count how often a value is larger than 400, but only if this limit is hit also for at least 30 minutes (thus including the next 2 rows).

Example would be:

I am trying to communicate with cross-origin resources using postMessage(), but am unable to get it to work properly. I have reviewed dozens of other similar questions, but am still stuck.

(https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage, https://javascript.info/cross-window-communication, How can I do cross-domain postMessage?, etc.)

I have this working on the same origin, but when I move to a different origin, I get a standard corss-origin error.

Uncaught DOMException: Blocked a frame with origin ... from accessing a cross-origin frame.

I call postMessage() twice. Once on page load using the wildcard - which is working. And once using a delcared origin - which is what I need, but can't get to work.

Parent:

I successfully get the data from this table from THRIVEN :

But as you can see, at the Net% column, those values negative/positive are determined by some CSS (which I believed, and I couldn't find them where they are located).

How can I extract those data and put them into my Excel as negative/positive numbers? Below is my current code :

I have an Excel VBA script that does an index/match across two separate sheets. The issue I'm facing is that it codes the formula in my spreadsheet using "@" and it doesn't end up picking the values. I have to go in and manually delete the @ sign so that the formula works.

Does anyone have any suggestion how I can remove the @ symbol?

Code below: