[Solved] pd.DataFrame(np.random.randn(8, 4), index=dates, columns=[‘A’, ‘B’, ‘C’, ‘D’])

[ad_1] Basically np.random.randn returns random float values of normal distributions with mean = 0 and variance = 1. Now np.random.randn takes shape you would like to return of those distributions. For example: np.random.randn(1,2) returns an array of one row and two columns. Similarly, you can give np.random.randn(1,.,.,.,9) which gives you out a complicated array. Since … Read more

[Solved] My javascript isn’t executing

[ad_1] On your website ‘agwebdesign.net’, it seems there is no element with Id ‘body’ in your HTML file. Thus giving an error. Also you would want to check the case sensitivity for the loop variables, which otherwise may end up creating infinite loops making your website to not respond 5 [ad_2] solved My javascript isn’t … Read more

[Solved] MySQL Insert into post_meta with select and join – what am I doing wrong?

[ad_1] I’m going to take a hot second to answer this. My query was correct. I simply didn’t have AutoIncrement turned on, because there was an invalid ID of 0, which I deleted. EDIT: FINAL CORRECT QUERY —————————————————————– INSERT INTO wp4t_postmeta (post_id, meta_key, meta_value) SELECT postmeta.post_id, ‘_attached_image’, posts.ID FROM wp4t_postmeta AS postmeta INNER JOIN wp4t_posts … Read more

[Solved] String cannot be of zero length error [closed]

[ad_1] You need to check if the area contains a hyphen. Otherwise Row.Area.Substring(0, Row.Area.IndexOf(“-“) + 1) will return an empty string, and passing the empty string to Replace is what is causing the error. So (and please excuse any invalid VB.Net) If Row.Area.Contains(“-“) Then Dim area As String = Row.Area.Substring(0, Row.Area.IndexOf(“-“) + 1) Row.Area = … Read more

[Solved] Python: is there a common way to simplify the code which used in sql

[ad_1] i found “locals” which could meet my needs: getVar = locals() a1 = “a1” a2 = “a2” a3 = “a3” bb1 = [a1,a2] bb2 = [a1,a2,a3] all_sql = [bb1,bb2] for one in all_sql: db_values = “,”.join([str([getVar[i]) for i in all_sql]) db.exec_insert(db_values) my unclear expression and poor English may troubled others 🙁 [ad_2] solved Python: … Read more

[Solved] Python-Add or remove letters at a specific location

[ad_1] You should do the following: generate a string containing all the letters use ranodm.sample() instead of random.choice() to generate a list of 3 random letters, which you then should join() return an in-place list with the new elements It’d look like this: import string import random def add_str(lst): _letters = string.ascii_letters return [”.join(random.sample(set(_letters), 3)) … Read more

[Solved] How can i Build Dressing room app by Augmented Reality

[ad_1] You can use Unity very easily. you’ll need to download the package ‘Vuforia’ for using AR with Unity. Read up on Vuforia’s documentation pages. For android applications, you can download Android’s SDK for AR, and for apple use the Apple ARKit. 2 [ad_2] solved How can i Build Dressing room app by Augmented Reality

[Solved] button doesn’t click in android studio

[ad_1] Your Button clicked properly but the main thing is you did not set fact value to TextView. #. As you have declared Button and TextView outside onCreate(), no need to declare it again inside onCreate(). Use: mfactbutton = (Button) findViewById(R.id.button); mfacttext = (TextView) findViewById(R.id.textView2); Instead of: Button mfactbutton = (Button) findViewById(R.id.button); TextView mfacttext = … Read more