https://www.samcodes.us/home daily 1.0 2023-08-22 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1607550381067-AYLCCIA0I2JEES7D2JQZ/me.jpg Home - About Sam Samantha is a skilled programmer in various languages, including Java, Python, and SQL. Her academic interests include (Big) data programming and sorting algorithms. Samantha is passionate about making an impact. When she is not counseling bilingual high school students, she enjoys film photography, exercise, and spending time outdoors. https://www.samcodes.us/contact daily 0.75 2020-09-28 https://www.samcodes.us/links daily 0.75 2021-01-07 https://www.samcodes.us/projects daily 0.75 2020-12-09 https://www.samcodes.us/projects/nyc-lead monthly 0.5 2021-03-04 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1607545297933-XM6KOYWMDYOCX6SXVBFY/leaddatasample.jpg Projects - NYC Lead at the Tap Data Source, dataset https://www.samcodes.us/projects/dsny-salt-usage monthly 0.5 2020-12-09 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1607470086045-XOGWUQX9G6JESD38NTDA/datasample.jpg Projects - DSNY Salt Usage 2016-2019 data source https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1614290730644-LVISXI7T1FOHXN8J6NPW/Salt1Results.png Projects - DSNY Salt Usage 2016-2019 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/567a56dc-b256-4be8-9cfc-440b126bbdda/SaltBarChart.png Projects - DSNY Salt Usage 2016-2019 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/2ca7c873-dd7a-417f-a521-f9df4d89a678/ManhattanChart.png Projects - DSNY Salt Usage 2016-2019 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/3897dc6c-8bdc-48b0-b19e-2cf5e3c28bdf/BronxChart.png Projects - DSNY Salt Usage 2016-2019 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/4af5d4d2-895d-4d24-956e-d3ef35223d79/BrooklynChart.png Projects - DSNY Salt Usage 2016-2019 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/ef728a7b-ccae-4ee8-bd84-de60b13e1b03/QueensChart.png Projects - DSNY Salt Usage 2016-2019 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/bca25af8-1978-4b42-a865-faf43ff8f80c/StatenIslandChart.png Projects - DSNY Salt Usage 2016-2019 https://www.samcodes.us/projects/nyc-tree-census monthly 0.5 2020-12-09 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1607527941188-ECU2GLMQV323IA5WOZ6S/treedatasample.png Projects - NYC Tree Census 2015 data source https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1614288957311-TAIHYQDDPNHWQGN6KO2X/TreesNYCStats.jpg Projects - NYC Tree Census 2015 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1614288920359-J1TP5AHHFVW0MWLACCNT/TreesNYCTotal.jpg Projects - NYC Tree Census 2015 https://www.samcodes.us/projects/brooklyn-bridge monthly 0.5 2020-12-09 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1607533474430-KDL3FRQTPSKW98OUQ61C/bridgedatasample.png Projects - Brooklyn Bridge Pedestrian Counts data source https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1614289735223-KL1XICXTDS18QM26CZI6/BrooklynBridgeChart.png Projects - Brooklyn Bridge Pedestrian Counts https://www.samcodes.us/python daily 0.75 2020-12-08 https://www.samcodes.us/python/04-objects-type-casting monthly 0.5 2021-01-22 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1611599391723-B4Z1TXZ0VRMPMC3JRIU5/typecasting.jpg Python - 04 - Objects, Type Casting - Calling the str function on an int argument will give you a new object (a string) containing only the number Calling the int function on a string argument (containing only numeric characters) will give you a new object (an int) with the value of the number in the string. Calling the float function on an int argument https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1611605278380-57M8S6KQTC0JCR4824R3/fn.png Python - 04 - Objects, Type Casting - note- I casted difference to a string inside the print statement. Of course, this could have been done on its own line, but this way our code is a bit more concise. https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1611605723399-GLSOIELO331P7JMCWH2P/exactly.png Python - 04 - Objects, Type Casting - example calling our function, it prompts the user to enter their age. I typed 100 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1611605778642-E4QRJYEYXBAS5Q5B1QWA/greaterthan.png Python - 04 - Objects, Type Casting - example calling our function, it prompts the user to enter their age. I typed 102 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1611605624823-ZA5GZPAYNUP2V3JPJWGS/lessthan.png Python - 04 - Objects, Type Casting - example calling our function, it prompts the user to enter their age. I typed 22 https://www.samcodes.us/python/python-03-getting-user-input monthly 0.5 2021-01-13 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1610580093135-3XGJNYF5Z7N2HTQ56FCB/rungreeting.png Python - 03 - Getting User Input - result from running code in Terminal https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1610579573286-BCD16NA3RB7199AIWQKX/greeting.png Python - 03 - Getting User Input https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1610581316115-VCVKMLKFV6IF1BZZLQYO/othergreeting.png Python - 03 - Getting User Input - I included a print statement as a prompt before calling the input function. https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1610581437682-2G44OKYYCRYS6EFAPM6H/runothergreeting.png Python - 03 - Getting User Input - result from running code in terminal. https://www.samcodes.us/python/02 monthly 0.5 2021-01-07 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1609975854209-VMC8YHB1ABUO3YD7TUV5/type.png Python - 02 - Data Types, Variables, If-Else, Comments - The type() function returns the data type of whatever you pass to it as an argument. https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1609975490753-P0YQTIPQDYBVM3Q9P5OW/twovar.jpg Python - 02 - Data Types, Variables, If-Else, Comments - I created a variable called my_var and I set its value to 10. I tried to create another variable called my_var and set its value to 11… When I printed the value of my_var, it’s value was 11… *So actually I never created another variable called my_var, I just changed the value of my_var. *the print function can also be called with an int as an argument https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1609985012487-P3AM6W16CHIL8YBBGBRC/compare1.jpg Python - 02 - Data Types, Variables, If-Else, Comments https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1610039361709-BMNG4QE8HS4G2UPFBKOZ/defareequal.png Python - 02 - Data Types, Variables, If-Else, Comments - x and y are parameters in this function https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1610039667017-27V9QRS7HS5DTCLOEQJT/callareequal.png Python - 02 - Data Types, Variables, If-Else, Comments - Python will start with the if- part x == y will return True, so it will print “ the numbers are equal” The else- part will not happen and the program will stop there https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1610038826397-EKZU4MALW5EYHL2CR8LW/if-else.png Python - 02 - Data Types, Variables, If-Else, Comments - Python will start with the if- part. a == b will return False, so the indented part underneath will not happen. It will move on to the else- part and print “the numbers are not equal” https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1610042723348-48BJZPY3RW2HNL8JB2MJ/defcomparenumbers.png Python - 02 - Data Types, Variables, If-Else, Comments - In this example, I wrote a function that takes two numbers as arguments and prints a string that tells how the numbers compare. It also prints a message to let us know that the program completed. https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1610044370710-VH2K961EHNVLOTTR8KN4/callcomparenumbers.png Python - 02 - Data Types, Variables, If-Else, Comments https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1610045002403-E89K92WPFB9ADIKD93UI/comment2.png Python - 02 - Data Types, Variables, If-Else, Comments https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1610044903157-TRSSAT4PIDNJFFQ8HOS9/comment1.png Python - 02 - Data Types, Variables, If-Else, Comments https://www.samcodes.us/python/01 monthly 0.5 2020-12-07 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1606497263948-DXR3YHU8AV5Z0QC7QH6Z/printhelloworld.png Python - 01- Hello World!, Strings, Functions - result from running code in Python Shell https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1606497731944-DNMKWFE5SA3T95FAQDG0/strings.png Python - 01- Hello World!, Strings, Functions - examples of strings in Python https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1606498053557-S6J6VBVV405NIW7HJTVP/concatenating.png Python - 01- Hello World!, Strings, Functions - concatenate two or more strings using the + operator https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1606498455526-V2NIDHU1V0WR8RNHVTKX/hellospaceworld.png Python - 01- Hello World!, Strings, Functions - Notice how the space is in a different place in each line, but the resulting string is the same. https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1606498367914-K96ON2CEAEZ8OA8ZQ2UX/helloandworld.png Python - 01- Hello World!, Strings, Functions - Concatenating “Hello” and “World” https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1606499041349-134MG4F4TPRQ3V9A2ASV/deffunction.png Python - 01- Hello World!, Strings, Functions https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1606499249412-6HR1NS6YU6WGJ4SEIHUJ/callhelloworld.jpg Python - 01- Hello World!, Strings, Functions - After running the code for the function definition, we are ready to call our function. We just use the function name and the parentheses. Since our parentheses were empty in the function definition, we leave them empty here. https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1606517134488-CI4LRE625DABCMTVPFIP/helloeveryone.jpg Python - 01- Hello World!, Strings, Functions https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1606516624645-7X32PN9VU2WLZ2KSLRAO/hellox.jpg Python - 01- Hello World!, Strings, Functions - I’ve put a parameter, x, in the parentheses. It represents the name that we’ll pass to this function when we call it. In the function body, I used concatenation to create a new string that is hello, a space, then the parameter x. https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1606516982878-X2TL3T5XYEE1H5EEJDUM/hellosamantha.png Python - 01- Hello World!, Strings, Functions - We call the function using the function name, and this function is expecting an argument as a string, so I’ve used my name in quotation marks. https://www.samcodes.us/python/07-string-manipulation monthly 0.5 2021-03-03 https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1614810742890-IFDN1O4L0GSHGPPQW4PP/strings06 Python - 07 - String Manipulation a step of 1 would be every single character, so a step of 2 means every other character https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1614810657861-0CKWE8I6W4PGHU0Z5XYA/strings05 Python - 07 - String Manipulation no start index, index -1 represents the last character, so from the beginning up to (excluding) the last character https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1614810911706-KS42P17T6DX4XYU2ZKHG/strings08 Python - 07 - String Manipulation https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1614810378995-AXGUXMP071N970VI9UAF/strings02 Python - 07 - String Manipulation Index -1 represents the last character of any string https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1614810551704-2W0AOJCALTFD1V8AAAYQ/strings04 Python - 07 - String Manipulation if no stop index is specified, Python will just go to the end of the string https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1614811420644-UJJY83V1V6S57P0Y4MQQ/strings01 Python - 07 - String Manipulation Index 0 is always the first character https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1614810412172-OR57D0CAC1SRMDEL8E50/strings03 Python - 07 - String Manipulation if no start index is specified, index 0 is implied https://images.squarespace-cdn.com/content/v1/5edf896030aa5b157779cff0/1614810818858-I6P9AC68V3SM18STZR5A/strings07 Python - 07 - String Manipulation a step of -1, negative means backwards and 1 is every character, so every character, but backwards